Most Shopify stores convert between 1% and 3% of their traffic. If you are sitting below 2%, you are leaving a significant amount of revenue on the table every single day. The good news is that conversion rate optimisation does not always require a full redesign. The right combination of apps can move your numbers within weeks.

This guide covers the best Shopify apps for CRO in 2026, grouped by function. Every recommendation is based on measurable impact, not affiliate relationships.

What is conversion rate optimisation and why does it matter for Shopify?

Conversion rate optimisation (CRO) is the process of increasing the percentage of visitors who complete a desired action, whether that is making a purchase, signing up for an email list, or adding a product to cart. On Shopify, the average store-wide conversion rate sits around 1.4%, according to Littledata's 2025 benchmark report. Top-performing stores hit 3.5% or more.

A 1 percentage point improvement on a store doing 50,000 monthly visitors at a £40 average order value is worth £20,000 in additional monthly revenue, without spending a penny more on traffic. That is why CRO apps are often the highest-return investment a merchant can make.

The apps below are grouped by the stage of the funnel they address.

Which social proof apps are worth using in 2026?

Social proof remains one of the most effective conversion levers available. Shoppers trust other shoppers more than they trust brand claims.

Loox

Loox is the leading photo and video review app on Shopify. It automatically requests reviews after purchase, displays them in a variety of widgets (carousels, grids, popups), and integrates natively with Shopify's review metafields.

Pricing: from £9.99/month
Best for: stores with high repeat purchase rates or strong visual products
Key metric: Loox reports that stores using photo reviews see an average 15% uplift in conversion on product pages

Judge.me

Judge.me is the strongest value option in the review space. The free plan includes unlimited reviews, review requests, and basic display widgets. The paid plan (£15/month) adds Google Shopping integration and advanced widget customisation.

Pricing: free or £15/month
Best for: stores looking for full review functionality without a large budget
Standout feature: the free plan is genuinely capable, not stripped down

Trustpilot

For stores where brand trust is a barrier to purchase, a Trustpilot widget on the homepage and checkout pages can have a meaningful impact. Trustpilot reviews are independent and perceived as more credible by first-time buyers.

Pricing: from £65/month for the business plan
Best for: high-consideration purchases, B2B, or markets where customers are unfamiliar with the brand

Which upsell and cross-sell apps deliver the best results?

Increasing average order value (AOV) is often faster than improving top-of-funnel conversion. These apps target customers who have already decided to buy.

Aftersell

Aftersell is a post-purchase upsell app that triggers offers immediately after checkout, before the order confirmation page. Because the customer has already entered payment details, the acceptance rate for these offers is significantly higher than pre-checkout upsells.

Pricing: from £29/month
AOV impact: merchants report an average 10 to 20% increase in AOV from post-purchase offers
Best for: stores with complementary products or consumables

ReConvert

ReConvert focuses on the thank-you page, turning it from a dead end into a revenue-generating surface. Features include birthday collectors, product upsells, cross-sells, and reorder buttons.

Pricing: from £4.99/month, scales with revenue
Best for: stores wanting to maximise the post-purchase touchpoint without heavy configuration

Frequently Bought Together

This app mirrors the Amazon-style "frequently bought together" widget on product pages. It uses purchase history to generate bundle suggestions automatically, and lets you configure manual recommendations where needed.

Pricing: £9.99/month flat
Best for: stores with a broad catalogue and natural product pairings

Which A/B testing apps are available for Shopify?

Shopify's native environment makes true A/B testing harder than on standard web frameworks, because theme changes are global. Purpose-built testing apps work around this limitation.

Convert Experiences

Convert is a professional-grade A/B testing platform with a Shopify integration. It supports multivariate tests, split URL tests, and personalisation campaigns. Statistical significance calculations are built in.

Pricing: from $99/month
Best for: stores doing meaningful traffic volumes (10,000+ monthly sessions) who want rigorous test data
Important note: A/B testing requires sufficient traffic to reach statistical significance. Running tests on low-traffic stores produces unreliable results.

Neat A/B Testing

A more affordable option designed specifically for Shopify. Neat allows you to test product page elements, headlines, descriptions, and images without developer involvement.

Pricing: from £19/month
Best for: growing stores wanting to start testing without a large budget

Which cart and checkout apps reduce abandonment?

Cart abandonment sits around 70% across ecommerce. Every percentage point you recover here goes straight to revenue.

See our detailed guide on how to reduce cart abandonment on Shopify for a full breakdown of tactics. For apps specifically:

Cartix

Cartix is a slide-out cart builder that replaces Shopify's default cart drawer. It supports progress bars (showing customers how far they are from free shipping), upsell widgets, and custom trust badges inside the cart.

Pricing: from £9.99/month
Key feature: free shipping progress bars alone typically lift AOV by 5 to 15%

Klaviyo (abandoned cart flows)

Klaviyo is primarily an email and SMS marketing platform, but its abandoned cart flows are among the most effective recovery tools available. A well-configured three-email abandoned cart sequence with SMS typically recovers 5 to 8% of abandoned carts.

Pricing: free up to 250 contacts, then scales with list size
Best for: any store with an email list and meaningful cart abandonment volume

Which speed and UX apps improve conversion indirectly?

Page speed is a direct conversion factor. Google's data shows that pages loading in under 2 seconds convert at 2x the rate of pages taking 5 or more seconds. These apps help without requiring a full theme rebuild.

Hyperspeed / Plug in Speed

Both apps apply technical optimisations to Shopify themes: lazy loading images, deferring JavaScript, and compressing assets. Results vary by theme and existing configuration.

Pricing: from £9.99/month each
Best for: stores on older themes that cannot justify a full rebuild

For a comprehensive approach to speed, see our guide on Shopify Core Web Vitals and speed optimisation.

Searchie / Boost Commerce

Site search is one of the highest-converting entry points on any store. Customers who use search convert at 2 to 4x the rate of non-searchers. Shopify's native search is functional but limited. Apps like Boost Commerce add autocomplete, synonym handling, and merchandising rules.

Pricing: from £19/month
Best for: stores with catalogues over 50 products

How should you prioritise CRO apps?

Adding too many apps simultaneously creates two problems: you cannot attribute improvements to specific changes, and app bloat slows your store down. The right approach is sequential.

A sensible starting order for most merchants:

Fix page speed first, as it affects every other metric
Add a review app to build social proof across product pages
Set up an abandoned cart email and SMS flow
Implement a post-purchase upsell
Add a cart drawer with a free shipping progress bar
Only then start A/B testing specific elements

Each stage should run for at least four weeks before you evaluate results and add the next layer.

How much should you spend on CRO apps?

A well-chosen stack of five to six apps should cost between £60 and £150 per month for most stores. That is a small number relative to the revenue impact if the apps are configured properly.

The common mistake is installing ten apps, doing no configuration work, and wondering why conversion has not improved. Apps are tools. They require setup, testing, and ongoing iteration to deliver results.

Key actions to take now

Benchmark your current conversion rate using Shopify Analytics or Google Analytics 4. Know your baseline before you install anything.
Audit your existing apps and remove anything you installed and forgot about. Unused apps still load code and slow your store.
Start with social proof: if you have no reviews visible on product pages, install Judge.me (free plan) today.
Set up an abandoned cart flow in Klaviyo or your existing email platform before touching anything else on the frontend.
Once your baseline tools are in place, install one upsell app and monitor AOV for 30 days.
If you are doing over 10,000 sessions per month, begin A/B testing your highest-traffic product pages.

Frequently Asked Questions

Do CRO apps slow down my Shopify store?

Most CRO apps add JavaScript to your storefront, which can affect load times if you install too many. The key is to audit what is actually loading. Use Shopify's built-in Speed Score alongside Google PageSpeed Insights to measure before and after adding any new app. A well-chosen, lean stack of five to six apps should have minimal impact.

What is a good conversion rate for a Shopify store?

According to Littledata's benchmarks, the average Shopify conversion rate is around 1.4%. Anything above 3.5% puts you in the top 20% of stores. For context, a store seeing 2% conversion is performing better than roughly two-thirds of all Shopify stores. The right target depends on your product category, traffic source, and price point.

Can I use multiple upsell apps at the same time?

You can, but it is not advisable unless they target clearly different touchpoints. For example, using a product page bundle app and a post-purchase upsell app is sensible because they do not conflict. Using two post-purchase upsell apps will create a confusing experience and make it impossible to attribute results. Keep your stack clean.

When should I consider custom development instead of apps?

When you are doing significant monthly revenue (roughly £500,000 or more annually) and have identified specific conversion bottlenecks that no app addresses cleanly, custom development becomes worth the investment. Apps are built for the general case. A custom solution is built for your specific customer journey. If you are at that stage, get in touch and we can assess what makes sense.

Best Shopify Apps for CRO in 2026