The Ultimate Buyer's Guide for Purchasing CRO Services

23 Jun.,2025

 

5 Best CRO Tools in : Complete Buying Guide (Free and Paid)

As digital marketers, we are always looking for ways to make data-driven decisions and improve conversion rates across the buying funnel. Research has proven time and time again that even a 1% uplift in conversions has a much greater effect on sales. This phenomenon can be seen across every vertical, whether in brick-and-mortar retail, SaaS, or e-commerce.

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Conversion rate optimization (CRO) is evidently important, but conducting effective CRO is easier said than done. That's why using the right conversion rate optimization tool is so important, but with dozens of option available, where do you even begin?

Thankfully for you, the Howuku team spent weeks reviewing dozens of them so you don't have to, and we hereby present our pick on the 5 best CRO tools you should get in .

In this buying guide article, you'll learn:

- The importance of CRO

- How to pick the right conversion rate optimization tool

- Comparison of the best free and paid conversion rate optimization tool (pros & cons, pricing, who is it suitable for)

Let's dive right in!

Importance of CRO

Conversion rate optimization improves user engagement through personalized experiences, and provides marketers with actionable insights. Moreover, by closely studying user behavior, collecting feedback, and implementing data-driven strategies, CRO helps boost conversions, generate more leads, and ultimately, increase revenue.

Here's a quick look at the main advantages of CRO:

  1. Improved user experience
  2. Increased return on investment (ROI)
  3. Enhanced customer trust and loyalty
  4. Higher traffic and better SEO rankings

Choosing the Right CRO Tool

Before we dive into our list, you should know that there is no single best tool, despite the best marketing efforts to position themselves that way. Each platform comes with unique features and price points that you should consider.

However, by assessing your goals, comparing the features of the various tools, and testing them out, you can make an informed decision that best suits your business's needs.

Assess Your Goals

Before diving into the various available CRO tools, it's essential to understand your primary objectives for implementing a CRO tool. By setting clear goals, you can identify the specific features and functions that your organization actually needs.

Some common objectives to consider are:

  1. Increasing website conversions: Optimize your digital experience design, layout, and content to encourage user actions, such as signing up, purchasing, or engaging with your content.
  2. Improving user experience: Analyze user behavior to identify areas of improvement and deliver a more enjoyable browsing experience for your visitors, resulting in higher customer engagement and satisfaction.
  3. Gaining insights into user behavior: Understand how users interact with your website and identify trends that can help you make more informed marketing decisions.

Compare Features

After determining your goals, research the features and capabilities of different tools to decide which one aligns best with your objectives. Keep in mind the following factors when comparing free CRO tools:

  1. Ease of use: Choose a platform that is intuitive and easy to navigate. This minimizes the learning curve and ensures your team can begin utilizing it immediately.
  2. Integration capabilities: Look for tools that can be easily integrated with existing platforms, such as your website, CRM, or marketing automation software, for seamless data sharing and analysis.
  3. Scalability: Opt for a tool that can scale with your organization's growth, offering additional features, and capabilities as your needs evolve over time.
  4. Support: Consider the level of customer support provided by the tool, as ongoing assistance might be crucial to ensuring the success of your CRO strategy.

Test the Tool

Implementing a new CRO tool on a trial basis can be beneficial in determining its suitability for your organization. Many free tools offer trial periods or free plans with limited functionality, allowing you to test the tool before fully committing to it. When testing, take note of the following aspects:

  1. Effectiveness: Assess if the tool helps you meet your primary objectives and contributes to the overall improvement of your website's performance.
  2. User feedback: Gather feedback from your team to determine if the tool is easy to use and provides valuable insights for decision-making.
  3. Compatibility: Ensure the tool integrates seamlessly with your existing technology stack without causing any disruptions or conflicts.

By following these steps, you can successfully choose the right CRO tool that meets your organization's needs, paving the way for enhanced user experience and increased website conversions.

5 Best CRO Tools in

In this section, we take an in-depth look at the top five free CRO tools that are helping digital marketers and growth experts optimize their websites, increase conversions, and enhance user experience in .

Google Analytics: A versatile website analytics tool

Google Analytics remains at the top of the list for CRO tools, offering a treasure trove of valuable insights for businesses. As a free solution, it's accessible to businesses of all sizes, providing valuable insights for data-driven decision-making.

Here are its most notable features:

  • Real-time data monitoring: Understand user behavior patterns as they happen, allowing you to identify trends, track conversions, and monitor site performance.
  • Detailed reports: Get comprehensive insights into user demographics, behavior, channels, and conversions, empowering you to create targeted marketing strategies.
  • Integration: Combine Google Analytics with other Google tools like Data Studio, Search Console, and Ads for a seamless experience.

Suitable For: Businesses of all sizes looking for a comprehensive analytics tool to gain insights into user behavior and website performance.

Pros:

  • Comprehensive insights
  • Easy integration with other Google products

Cons:

  • Limited heatmapping and user feedback functionality

Howuku: A powerful suite of CRO tools focused on user experience

Howuku is an all-in-one platform designed for businesses seeking a comprehensive CRO solution with a focus on enhancing user experience. This powerful suite of tools offers a range of features to help businesses optimize their websites, analyze user behavior, and make data-driven improvements.

  • Heatmaps: Gain valuable insights into user engagement and site effectiveness, with visual representations of browsing behaviors.
  • A/B testing: Run experiments on website design and content, testing variations of headlines, calls-to-action, and layout to optimize conversion rates.
  • User recordings: Replay visitor interactions on your site, identifying issues and opportunities for improvement.
  • Content personalization: Customize content for individual visitors according to their demographics or behaviors.

Pricing:

Suitable For: Digital marketers, product managers, UX designers, or e-commerce business owners looking for an all-in-one platform for conversion optimization and user experience enhancement.

Pros:

  • All-in-one platform
  • User-friendly interface
  • Integrations with other platforms

Cons:

  • Limited functionality on the free plan

Hotjar: A comprehensive CRO tool for heatmaps and user feedback

Credit: Hotjar

Hotjar has made its mark as a versatile and user-friendly CRO tool. This comprehensive solution enables businesses to gain insights into user behavior, identify areas of improvement, and optimize their websites for better conversion rates.

  • Heatmaps: Visualize user behavior through click, movement, and scroll maps, identifying areas of interest or friction on your website.
  • Session recordings: Analyze real-time visitor interactions to uncover stumbling blocks, helping you make data-driven decisions.
  • Surveys and polls: Gather valuable feedback directly from your users, helping you improve your website based on their needs and preferences.

Pricing:

Suitable For: Businesses seeking a versatile and user-friendly CRO tool that offers heatmaps, session recordings, and user feedback functionality.

Pros:

  • User-friendly
  • Versatile toolset
  • Valuable user feedback

Cons:

  • Limited A/B testing functionality

Optimizely: The leading platform for on-site A/B testing

Credit: Optimizely

Optimizely is a powerful tool for website and app optimization through effortless A/B testing, conversion funnel optimization, and personalization. With its easy-to-use visual editor and advanced testing capabilities, businesses can run experiments on their website design, content, and customer journeys to optimize conversion rates and create personalized experiences for users.

  • A/B testing with visual editor: Create and run A/B tests without needing coding expertise, using the intuitive visual editor.
  • Conversion funnel optimization: Leverage multivariate testing to optimize the entire customer journey, improving conversion rates and reducing drop-offs.
  • Personalization: Adjust website and app content to individual user preferences and behavior, offering a tailored experience that boosts engagement and conversions.

Pricing: Available upon request

Suitable For: Businesses focused on website and app optimization through A/B testing, conversion funnel optimization, and personalization.

Pros:

  • Powerful A/B testing capabilities
  • Visual editor
  • Personalization features

Cons:

  • No free plan available

Matomo: An open-source alternative to Google Analytics

Credit: Matomo

Matomo is an open-source web analytics platform that prioritizes user privacy and customization. Designed for businesses looking for a Google Analytics alternative, Matomo offers comprehensive analytics features while adhering to data privacy regulations such as GDPR and CCPA.

  • Privacy-focused analytics: Comply with data privacy laws like GDPR and CCPA, while still gaining insights from user behavior and site performance.
  • Customizable dashboard: Create a tailored analytics experience with widgets and reports customized to your needs.
  • Event tracking: Monitor specific user behaviors on your site to optimize performance and improve the overall user experience.

In the next section, we'll discuss how to find the best free CRO tool for your needs and how to leverage the power of Howuku for an all-in-one solution.

Pricing:

Suitable For: Businesses that prioritize data privacy and require a customizable, open-source analytics solution.

Pros:

  • Privacy-focused
  • Open-source and customizable
  • GDPR and CCPA compliant

Cons:

  • Less intuitive interface compared to Google Analytics
  • Limited integration with other tools

Enhance Your CRO Strategy with Howuku

So far, we have discussed the importance of utilizing free CRO tools to improve website performance and user experience. We have also explored the top 5 free CRO tools to consider in , each with its unique features and advantages. Now it's time to delve into how Howuku, a powerful suite of CRO tools, can help enhance your conversion rate optimization strategy further.

The Comprehensive Suite of Analytics and Optimization Tools1

Howuku offers an all-in-one website analytics and optimization platform designed to help growth marketers understand and improve user experience while performing conversion optimization. With various features aimed at enhancing UX and boosting conversions, Howuku ensures a smooth and efficient CRO process. These features include:

Heatmaps: Understand user behavior and engagement patterns to make data-driven optimizations.

A/B testing: Evaluate different design and content variations to determine the best-performing options.

Session recording: Analyze visitor interactions in real-time to gain insights into their behavior, uncovering obstacles and opportunities for improvement.

User feedback: Collect valuable user feedback, identifying customer needs and preferences to inform optimization efforts.

Content personalization: Target visitors with more relevant content that aligns with their interests and needs.

Funnel analytics: Track user journeys and identify bottlenecks to uncover optimization opportunities.

Seamless Integration with Other Tools1

Howuku stands out by offering integrations with other popular digital marketing tools, such as Google Analytics, CRM systems, and marketing platforms. These integrations enable marketers to combine data from multiple sources, painting a complete picture of user behavior and conversion performance, ultimately making more informed decisions.

Tailored for Digital Marketers

Howuku is designed with digital marketers in mind, providing a comprehensive set of features to address their specific needs. Whether your organization focuses on B2C or B2B marketing, Howuku's platform makes it easy for you to understand user behavior, uncover insights, and optimize conversions effectively.

Time to Enhance Your CRO Strategy

Now that you have a better understanding of the free CRO tools available in and know how Howuku offers a comprehensive solution tailored for digital marketers, it's time to put these tools to work for you. Enhance your conversion rate optimization strategy and boost your website's performance by leveraging the power of Howuku.

The Ultimate Guide to CRO and the Customer Journey | CRO Help

Think of the customer journey as a first date, everything needs to be perfect, or you won’t get a second chance. You must turn that first impression into a lasting one, which is where conversion rate optimisation comes in. We'll take you through how CRO principles can improve performance and reduce resistance across the various stages of the customer journey.

  1. Address user needs in simple, familiar language
  2. Strategically frame your product
  3. Associate yourself with well-known people and brands
  4. Use content and quotes from authority figures and experts
  5. Remove blockers and distractions
  6. Make a great first (and last) impression
  7. Be bold and striking

Successful conversion rate optimisation (CRO) is a science – a chemistry of strong audience knowledge mixed with optimised content, layout and navigation that increases persuasion, lowers fear and removes blockers from your design.

It’s about easing the path to conversion from that very first date.

In section one, we look at key CRO principles that apply when users already have awareness of your brand. We’ll then highlight some typical CRO techniques you can consider at this stage.

We crave simplicity. The speak-easy effect shows words that are easier to say are more trustworthy.

Studies have also shown that we (humans) place a higher risk on words that are hard to pronounce. Keep it simple for a better impact.

“more good stuff” - asos use familiar and simple
language to address customer needs within three CTAs.

We react to choices differently based on how they’re presented (framing effect). Context and tone will affect your audiences’ perception.

We avoid risk when a positive frame is presented, and seek risks when a negative frame is presented. Think about the action you want your customer to perform, and use positive or negative language to frame your product or service.

Marketer Neil Patel strategically frames his service
as focused, determined, familiar and relevant (local)

Familiarity is our friend. We tend to like things and people we already know and are fond of – so partnering with respected people and brands in your industry will lift your brand image and bring affinity between the two, known as the Halo Effect.

(See also: In-group bias, Out-group homogeneity bias, Cross-race effect, Cheerleader effect, Well-travelled road effect, Positivity effect)

Waitrose associate with the familiar and highly
respected chef Heston Blumenthal 

We place high value to opinions of authority figures and experts (authority bias). Use quotes from relevant personalities to align your brand with their values and make your company more authoritative or relatable.

The Happy Startup School uses quotes from authority figures – a common technique.
The funny (fake) quote will increase the users' ability to recall the brand (Humour effect)

CRO is all about easing the path to conversion on your site – improving navigation, adapting calls-to-action, optimising design, and content. Every element on a page will distract from others, so it’s a good idea to review all pages key to the awareness stage to remove all blockers and make sure info is easily found and engaged with.

Are you interested in learning more about CRO Services? Contact us today to secure an expert consultation!

The Balenciaga online shop incorporates pure simplicity into their branding,
allowing for a distraction-free shopping experience

Items presented first are easier to remember (primacy effect). Items at the end of a list, or experience, are also recalled easier (recency effect). Put these principles into practice on your site and be strategic about what the user experiences at the beginning and end of their user journey.

We remember the beginning and ends more easily than the middle.

Virgin Holidays employ the primacy effect by heavily promoting ‘sale’ items when a user begins holiday hunting. This instills confidence in their prices at a memorable part of the customers’ journey.

Virgin holidays heavily promoting ‘sale’ items when a user begins holiday hunting
(exploiting the Primacy Effect).

Brands that stand out are more memorable. We notice bizarre, funny, visually-striking and anthropomorphic design (design which reflects human-like qualities). Employ striking visuals and humour to your designs to be remembered.

See: bizarreness effect, Humor effect,  Von Restorff effect, Picture superiority effect, salience bias.

At one stage, PurpleBricks employed the Von Restorff effect with bold and striking imagery.
This helped them differentiate and become a memorable brand.

As the recency effect dictates, your customers are likely to remember their first experience with your brand – so make that a lasting one. Be strategic, provide a great first impression, and make it easy for customers to progress to the next stage (research and consideration).

It’s essential to test big design changes to measure how they alter your user experience and behaviour. Using our test and learn approach and customer-centric thinking in CRO, we help clients improve their customers’ experience and ultimately, their business’ bottom line.

Back to section one ↑

  1. Highlight low stock, scarcity and exclusivity
  2. Use repetition
  3. Keep choice and variety low
  4. Show relationship to trusted brands
  5. Be likeable
  6. Show high prices first
  7. Offer immediate benefits
  8. Show your social responsibilities and impacts
  9. Show consensus and ratings
  10. Less is more - keep it simple and distraction-free

So what’s next? The customer is through the door, familiar with you and engaged with your brand. Now, with a problem, desire, or need to fulfil, they move into the research and consideration stage.

This is where they scour your website and digital channels to learn more about you and compare you against your competitors. Understanding your audience’s intent and how your website caters for them at this stage of their journey can uncover a wealth of opportunity. You’ll be able to better improve their experience of your brand and streamline their path to the purchasing stage. In section two we look at CRO principles to optimise the research and consideration stage of the customer journey.

We place value onto rare items (scarcity heuristic). We also place greater value when there are barriers to entry – like members-only access.

Consider how to employ exclusivity and limited access to your campaigns and content.

Highlighting rare items, low stock, and exclusivity will not only increase their perceived value, but also help users discover and obtain something ‘special’ that may not be available in the future.

Wine retailer Majestic have created a whole area to highlight wine that is both limited in stock
and rare (once-off availability). This helps increase the product's perceived value.

We develop a preference for things after repeat exposure. Repetition also increases our familiarity with brands (mere-exposure effect). Use repetition with caution; a study suggests that repetition has a positive effect for a period, and then begins to have a negative effect (Berlyne, D. E. ).

Remarketing to website visitors with display ads is a powerful method to gain repeat exposure and mindshare of your audience.

Clever use of repetition by McDonald's

Too much choice is paralysing and leads to indecision and lower sales (choice paradox).

Adobe’s Brand Director of Product Marketing, Kevin Lindsay, recommends finding the balance. Kevin argues that there “needs to be a balance between choice and hyper-relevance” warning not to cross the line between freedom of choice and big-brother style customisation.

Clothing retailer MM.LaLfeur devised a retail model around removing choice, by allowing users to skip the shopping experience altogether and receive pre-chosen outfits. 

We’re more likely to adopt beliefs if more people hold that belief. We’re also more likely to value the opinion of authority figures and be influenced by them (known as ingroups , social proof, authority bias).

Showcase relationships with familiar and trustworthy brands, for example brands that have featured or recommended you.

Van leasing specialists Vanarama show their likeability by displaying logos of media their audience will trust (have authority) and be familiar with.

It may seem obvious that we’re more likely to gravitate towards and do business with people and brands we like (liking principle), but it’s true.

Importantly, this bias also includes:

  • Physical attractiveness
  • Similarity to ourselves
  • Associations with other people or brands we like

Associate yourself with likable, established and trustworthy brands (or people) and highlight your partnership with them on your website and via your content.

Diageo’s Haig Club whisky uses the 'liking bias' by associating their product with the legendary footballer David Beckham.

We rely too heavily on the first piece of information seen. A high price for one item makes other items seem cheaper (anchoring bias).

Consider how your first shown prices frame your pricing.

The Savoy Grill menu lists the most expensive item first,
this allows other items to feel cheaper

We like to return favours and are more likely to comply with future requests after being offered something first (reciprocity).

We prefer a smaller more immediate payoff now, rather than a larger gain later on (hyperbolic discounting). Consider offering a premium delivery option to afford your users' immediacy and give instant gratification.

YamYamgreeting cards offer immediate benefits
by offering a free birthday card 

We look to the actions of others to help determine our own and we have a tendency to conform with other people and flock together (Social proof, conformity, herding, bandwagon effect).

Dr. Robert Cialdini highlights consensus as one of the six key principles of persuasions.

Employ consensus at the research stage of the customer journey by:

  • Showing product ratings (popularity) and testimonials
  • Showcasing additional products that customers also bought (e.g. “customers who bought this item also bought”)

Wine retailer Majestic clearly displays consensus by showing a rating and how many customers would buy it again.




Amazon utilises the consensus principle by highlighting
additional products that customers also bought.

We give up on tasks when faced with information overloador complexity. Additionally, every extra element on a page competes with other elements, diminishing their relative visibility (10 usability heuristics).

Hatmaker Optimo employs simplicity by letting their navigation take a back seat. The hats take centre stage. When the user requires navigation, it gains contrast and focus.

At Fresh Egg we have tested many of these techniques and seen fantastic results for our clients. For example, we have seen a 69.9% increase in revenue and a +11.9% increase in orders by adding a “Customers also bought” section to an e-commerce product page.

While these principles are based on scientific research and studies, user behaviour should still be monitored when applying these to your designs. Split-testing design updates will help you learn about your audience and what’s important and persuasive for them.

Employing a test and learn approach to your designs allow you to continually gain insight and optimise your offering to directly meet the needs of your audience.

You can be reactive, proactive, and responsive – every customer’s dream in the ever-changing digital age.

Back to section two ↑

  1. Run surveys to understand your user’s language, needs, and fears
  2. Show clear prices and fees
  3. Ensure experiences are fast
  4. Analyse the checkout process and optimise forms
  5. Keep your checkout process simple and distraction-free
  6. Convey security and trust
  7. Make voucher code input areas less visible, or invisible
  8. Start with small easy tasks, and show progress
  9. Ensure the transaction ends on a high
  10. Add personalisation

Have you ever wanted to buy something so much, that you didn’t care how painful and time consuming it was to buy? Maybe the item was only available on one poorly optimised website, and you had to persevere through usability hell to purchase.

You fought and stumbled through:

  • Re-completing forms
  • Calling customer support
  • Setting up an account with a password that Einstein would be impressed by

Ten points for dedication. But most of your website users won’t be up for wading through such friction. Here, we'll look at CRO tips to optimise the user journey through the purchasing stage, using some techniques we employ here at Fresh Egg to improve customer experience and ease purchase decisions.

Surveying your users at different stages of the purchasing process will help uncover what may be hampering their journey of checking out.

For example:

Survey users before checkout, especially if you can target those who appear to be on the fence about purchasing. Be careful you don’t put them off making a purchase – this survey shouldn’t be intrusive and it’ll be key to monitor user behaviour.

You could ask, Did you find everything you were looking for? Or; Do you have any concerns before purchasing today? 

Survey users after they’ve checked out, and before the thank-you page. 

You could ask, What convinced you to buy? Or; Was there anything that made you hesitate before buying?

Studies showhigh consumer expectations for page load times – just two seconds. A performance difference of just 0.25 seconds is enough to make or break a web experience for the user – therefore providing a competitive advantage for the business.

And it’s not just page load times that matter – the speed of other on-page elements is also key to success. If you employ an auto-suggest search box for example, ensure it is just as lightning fast as the rest of your site.

Twitch.tv provide a great example of a fast auto-suggest that with a variety of useful results

Uncover areas of friction on forms with Google Analytics or better yet, specific analytics software. At Fresh Egg we’ve greatly improved forms and user purchasing experiences thanks to analytics insight tools like Hotjar and Formisimo.

Specialised form tracking tools can quickly uncover areas to optimise your forms (above: Hotjar form analysis)

Nielson Norman highlights 10 best practices to follow for form design – employ as many of these as you can to fully optimise the forms within your checkout process. 

Our attention span has fallen from 12 seconds to 8over the last 15 years. It sounds obvious, but checkout needs to be smooth, simple and distraction free.

Long and complicated checkouts will hamper conversion rates. A US study has shown 27% of online shoppers abandoned an order solely due to a “too long / complicated checkout process”. The same study showed an ideal checkout flow will contain only 7-8 input fields, yet checkout flows on average contain 15 input fields (source). 


Aside from removing unnecessary form fields, a typical method of speeding up the checkout process is to offer registration at the end of the process (after payment) as opposed to before, or integrating third parties such as PayPal.

We are more likely to commit to larger tasks if we have performed smaller actions already (Commitment bias). Consider your checkout process: are the first steps clear, quick and simple? Dr. Robert Cialdini highlights the commitment bias as one of six key principles of persuasions.

Our efforts increase as we move closer to our goal (Goal gradient hypotheses). A 10 space coffee card with two pre-completed stamps will be completed faster than an 8 space coffee card with no stamps.

Does your reward scheme offer an initial free bonus, or holiday bonuses?

Does your checkout process convey the distance to purchasing?

Personalisation has become crucial for driving customer acquisition, engagement, retention and an increase in conversions. Classic conversion optimisation focuses on providing the best experience for the average user, but is evolving with the tide of personalisation. Injecting customisation and tailored content into your design will take you to the next level.

Examples of ecommerce personalisation:

Shopping cart abandonment emails

Sending automated shopping cart emails to users who have abandoned the site have always been a smart tactic to encourage them back to complete the purchase.

Product recommendations

Diving into user data to show personalised product recommendations in the shopping cart or on product pages based on previous interactions.

Back to section three ↑

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