21 Best Shopify Apps for Increasing Conversions

Increasing conversions on a Shopify store isn't a single-app problem — it comes down to trust (reviews and social proof), urgency and lead capture (popups), spending per order (upsells and bundles), page speed and layout (builders), and retention (loyalty, chat, email). Below are 21 distinct, actively maintained apps organized by the specific job each one does, since combining a few apps across categories generally outperforms stacking several tools that do the same thing.

Diagnose Before You Install

Before adding apps, it's worth being specific about what's actually causing lost conversions, since installing an upsell app won't help if the real issue is checkout friction, confusing navigation, or unexpected shipping costs — a commonly cited reason shoppers abandon checkout. Most stores benefit from combining apps across categories — one review app, one popup or lead-capture tool, one upsell tool — rather than loading up on several apps that do the same job. With that framing, here are 21 apps split by category.

Reviews and Social Proof

Reviews and user-generated content build the trust that turns a first-time visitor into a buyer, and remain one of the most consistently cited conversion levers across Shopify merchant guides.

1. Judge.me

Judge.me is widely cited as the most popular review app in the Shopify ecosystem, largely because its free plan includes unlimited review requests and unlimited reviews — a combination few competitors match at no cost. It supports photo and video reviews, integrates with Google Shopping for rich snippets, and connects with email platforms like Klaviyo. As of recent pricing, a paid Premium tier runs around $12–15/month for additional features. Best for budget-conscious merchants who want full review functionality without a mandatory paid tier.

2. Loox

Loox is built specifically around visual reviews — photo and video submissions are the default rather than an add-on, and its review request emails are sequenced to maximize photo submission rates. This makes it a strong fit for apparel, beauty, home goods, and other visually driven categories where seeing a real customer's photo matters more than reading text. As of recent pricing, plans start around $9.99–12.99/month. Best for brands with strong product photography where visual proof drives more trust than star ratings alone.

3. Yotpo

Yotpo positions itself as an enterprise-grade ecosystem covering reviews, SMS, and loyalty in one platform with AI-driven insights and multi-channel syndication to Google and Meta. A free tier exists, with paid plans scaling based on order volume and feature depth. Best for growing or established brands that want reviews, loyalty, and SMS marketing consolidated under one vendor rather than stitched together from separate apps.

4. Fera

Fera combines review collection with real-time social proof notifications — recent purchases, live visitor activity — aimed specifically at building urgency alongside trust rather than reviews alone. It's frequently cited for its customization options and built-in A/B testing. Pricing includes a free tier, with paid plans scaling from there. Best for merchants who want review collection and urgency-based social proof combined in a single app rather than two separate tools.

Popups, Lead Capture, and Urgency

These apps focus on capturing visitors before they leave and creating time-sensitive reasons to convert now rather than later.

5. OptiMonk

OptiMonk is a native Shopify lead-capture and popup tool supporting exit-intent triggers, email and SMS list growth, and on-site personalization campaigns, with a free tier available. As of recent pricing, paid plans start around $39/month. Best for merchants who want popup-based lead capture combined with on-site personalization in the same tool.

6. Privy

Privy focuses on converting visitors into email and SMS subscribers through popups, banners, and exit-intent offers, with built-in email marketing automation for stores that don't already run a dedicated platform like Klaviyo. It's commonly positioned as an accessible entry point for smaller stores building their first list-growth and abandoned-cart flows. Best for newer stores that want popup-based list building and basic email automation bundled together rather than as separate purchases.

7. Fomo

Fomo (Sales Popup Social Proof) displays real-time notifications of recent purchases and visitor activity, along with exit-intent and email-capture popups, aimed at making a store feel active rather than empty to new visitors. A free tier covers a limited monthly visitor volume, with paid plans starting around $9.99–14.99/month for unlimited visitors and campaigns. Best for smaller stores wanting a straightforward, low-cost way to add live purchase notifications without a broader personalization platform.

Upsells, Cross-Sells, and Post-Purchase Offers

These apps increase average order value by surfacing relevant additional products at specific points in the purchase journey — product page, cart, checkout, or the post-purchase thank-you page.

8. ReConvert

ReConvert focuses specifically on the post-purchase thank-you page, letting merchants build upsell funnels shoppers see immediately after completing checkout — a moment with notably lower friction since payment has already been entered. As of recent pricing, plans start around $4.99/month, making it one of the more affordable entries in this category. Best for stores wanting a low-cost, focused post-purchase upsell funnel rather than a full-journey upsell platform.

9. Candy Rack

Candy Rack is an all-in-one upsell app covering the entire purchase journey — product page, cart, checkout, and post-purchase — in a single tool, with an AI-driven Smart Auto-Upsell mode that selects offers automatically rather than requiring fully manual rule-setting. As a Built for Shopify app, it's documented as having no measurable impact on page speed. As of recent pricing, plans start around $29.99/month and scale with order volume, with no free plan for live stores. Best for merchants wanting one upsell tool covering every stage of the funnel instead of separate apps per stage.

10. Bold Upsell

Bold Upsell is a long-established name in the Shopify upsell space, offering product-page and cart-level upsells and cross-sells with extensive customization for stores with complex trigger and display rules. As of recent pricing, plans start around $9.99/month. Best for stores that want a mature, highly configurable upsell tool for more complex merchandising rules.

11. Zipify OCU (One Click Upsell)

Zipify OCU focuses on advanced post-purchase funnels aimed at mid-market and enterprise stores running more sophisticated, multi-step upsell sequences than simpler post-purchase tools handle. As of recent pricing, plans start around $79/month, reflecting its more advanced positioning. Best for higher-volume stores that have outgrown a basic post-purchase upsell tool and need more advanced funnel logic.

12. Rebuy

Rebuy is an AI-driven personalization engine spanning cart, checkout, search, and post-purchase recommendations, positioned as a comprehensive full-funnel tool rather than a single-touchpoint upsell app. It's frequently cited for detailed performance analytics and extensive customization, offset by a relatively higher cost and more setup complexity than single-purpose upsell apps. As of recent pricing, plans start around $25–99/month depending on scale. Best for stores wanting AI-personalized recommendations across the entire customer journey in one platform.

Bundling

Bundling apps increase order value by packaging complementary products together, generally on the product page itself rather than at checkout.

13. Frequently Bought Together

Built by Code Black Belt, this app analyzes purchasing patterns to suggest Amazon-style "frequently bought together" bundles directly on the product page, letting customers add multiple relevant items to cart in one click. As of recent pricing, plans start around $9.99/month. Best for stores wanting algorithm-driven bundle suggestions without manually curating every combination.

14. Fast Bundle

Fast Bundle takes a broader approach than pure post-purchase tools, building the upsell into the product page itself through multiple bundle formats — mix-and-match, BOGO, volume discounts, and add-ons — rather than a single bundle type. It's commonly paired with a post-purchase tool like ReConvert for full-funnel coverage. As of recent pricing, plans start around $19/month based on bundle view volume. Best for stores with naturally bundle-friendly catalogs — skincare routines, supplement stacks, apparel sets — that want multiple bundle formats in one app.

Store Speed and Page Building

These apps affect conversions indirectly but significantly, since page load speed and layout quality both influence whether a visitor stays long enough to convert.

15. GemPages

GemPages is a landing page and storefront builder letting merchants design custom, high-converting pages without writing code, positioned as a core tool for stores wanting more design control than default Shopify themes allow. As of recent pricing, plans start around $29/month with a trial available. Best for merchants who want to build custom landing pages for campaigns or product launches without hiring a developer.

16. PageFly

PageFly is a comparable drag-and-drop page builder used for building custom product, landing, and home pages, frequently cited alongside GemPages and Shogun as one of the more established options in this category. Best for merchants comparison-shopping page builders who want an alternative with a similarly broad template library.

Customer Support and Retention

Apps in this category affect conversion indirectly, by resolving pre-purchase questions quickly and encouraging repeat purchases that compound a store's overall conversion economics.

17. Gorgias

Gorgias is a native Shopify live chat and helpdesk platform combining multi-channel support (chat, email, social) with automated ticketing and CRM integrations, letting support agents see order and customer data directly alongside a conversation. As of recent pricing, plans start around $10/month. Best for stores where pre-purchase questions are a meaningful source of lost sales and fast, informed support responses would help close them.

18. Smile.io

Smile.io is a loyalty and rewards platform letting merchants set up points, referral, and VIP tier programs aimed at increasing repeat purchase rate rather than first-time conversion specifically. It's one of the more established names in Shopify loyalty apps, commonly paired with a review or email platform for a fuller retention stack. Best for stores with a strong repeat-purchase customer base that want a structured loyalty program encouraging return visits.

Email and SMS Marketing

These platforms drive conversions primarily through cart-recovery flows, welcome series, and post-purchase follow-up rather than on-page tactics.

19. Klaviyo

Klaviyo is one of the most widely adopted email and SMS marketing platforms in the Shopify ecosystem, built around automated flows — abandoned cart, welcome series, post-purchase — using detailed customer and order data synced directly from the store. It's frequently cited as the default integration partner for review and loyalty apps like Judge.me and Yotpo. Pricing scales with contact list size, with a limited free tier available for smaller lists. Best for stores building serious email and SMS automation rather than relying on Shopify's native email tools alone.

20. Postscript

Postscript focuses specifically on SMS marketing for Shopify stores, covering cart-recovery texts, promotional campaigns, and two-way conversational SMS, positioned as a channel-specific alternative or complement to broader platforms like Klaviyo. Best for stores prioritizing SMS as a primary recovery and retention channel rather than treating it as a secondary feature within a broader email platform.

Checkout and Cart-Level Offers

21. Honeycomb Upsell & Cross Sell

Honeycomb focuses on funnel-based targeting for upsell and cross-sell offers shown at the product and cart stages, aimed at mid-market stores wanting more granular targeting logic than simpler upsell apps provide. As of recent pricing, plans start around $49.99/month, reflecting its more advanced targeting capability relative to entry-level upsell tools. Best for stores that have outgrown a basic upsell app's targeting rules and need more sophisticated funnel segmentation.

Comparison at a Glance

Pricing figures below are approximate and based on publicly reported rates as of 2026 sourcing; confirm current pricing on the Shopify App Store before installing, since tiers and features change.

Quick Reference: Which Apps to Pair Together

Common Mistakes When Choosing Conversion Apps

Installing several apps that solve the same problem. Running two popup tools or two review apps simultaneously typically creates conflicting on-page elements and redundant page-speed cost without adding proportional value — pick one app per category rather than stacking similar tools.

Assuming the same app stack fits every store. The right combination genuinely depends on store type: a visually driven apparel brand benefits more from Loox's photo-review focus than from Judge.me's broader feature set, while a B2B or service-adjacent store may get more value from Gorgias's support integration than from a bundling app. There's no universal "best 5 apps" independent of what's actually causing lost conversions at your specific store.

Ignoring page-speed impact when choosing review or popup apps. Some review apps add meaningful load weight to every product page — verify an app's documented performance impact, particularly Built for Shopify status where available, before installing, since a slow page can undo the trust gains a review app is meant to add.

Treating upsells as automatically additive revenue. A poorly targeted upsell offer can annoy shoppers and increase cart abandonment rather than raising order value — apps with AI-driven relevance matching (like Candy Rack's Smart Auto-Upsell or Rebuy's personalization) exist specifically to reduce this risk, but even manual rule-based tools need genuinely relevant offers to avoid a net-negative effect.

Skipping diagnosis before adding features. Installing a conversion app addresses a specific point in the funnel — it won't fix an unrelated problem like confusing site navigation or an unexpectedly expensive shipping cost revealed late in checkout. Identifying where shoppers are actually dropping off, whether through analytics or direct feedback, should generally come before choosing which app to add.

Frequently Asked Questions

Do I need a review app if I'm just starting out with no reviews yet? 

Most review apps, including Judge.me and Loox, include automated review request emails sent after purchase, which is how a new store accumulates its first reviews rather than needing pre-existing social proof to justify installing one.

What's the difference between an upsell app and a cross-sell app?

 An upsell offers a higher-value version of what a customer is already buying (a larger size, a premium tier); a cross-sell offers a complementary but separate product (a case for a phone, a supplement alongside a protein powder). Several apps on this list, including Candy Rack and Bold Upsell, handle both within the same tool.

Will adding more apps slow down my store? 

It can — each app typically adds some script weight to page load, and this varies significantly by app and implementation quality. Built for Shopify status is a reasonable signal (though not a guarantee) that an app has been vetted for performance impact; it's worth testing page speed before and after installing any new app rather than assuming no effect.

Should I use Klaviyo or a store's native Shopify Email instead?

 Shopify's native email tools cover basic campaigns, but Klaviyo's automated flow depth — triggered by specific customer behavior and synced order data — is generally the reason stores upgrade once email becomes a meaningful revenue channel rather than an occasional newsletter.

How many conversion apps should a typical store run at once?

 There's no fixed number — a small store might run three (one review app, one popup tool, one upsell app), while a larger Shopify Plus store might run considerably more across categories. The relevant question is whether each app is solving a distinct, identified problem rather than duplicating another app's function.

Are free-tier apps good enough, or do I need to pay from day one? 

It depends on volume and feature needs — Judge.me's free tier, for example, includes unlimited reviews, which is genuinely sufficient for many smaller stores, while apps like Candy Rack offer no free plan for live stores at all. Check a specific app's free-tier limits against your actual store volume rather than assuming free tiers are universally limited or universally sufficient.

Do bundling apps work for every product catalog?

 Not equally well — bundling performs best where products have a natural grouping logic (skincare routines, supplement stacks, apparel sets); a catalog of unrelated, one-off products will generally see less lift from a bundling app than from a straightforward upsell or cross-sell tool.