Shopify Apps to Increase Sales: 10 Best (2026)
- The best Shopify sales apps split by lever: email/SMS, reviews, upsells, loyalty and referrals, subscriptions, and support.
- Match an app to your weakest lever, low conversion, low order value, or low repeat purchases, rather than installing apps at random.
- Every app adds cost, complexity, and page-speed drag; use as few as cover your real gaps and test one at a time.
- Nexus by Omniconvert sits above the stack, segmenting buyers by value and ranking the next-best action so the other apps pay off.
- Judge each app against your own trend, not an industry average, and keep only the ones that prove a return.
Shopify's app store has thousands of apps that promise more sales, which is exactly why choosing is so hard. The apps that actually move revenue are the ones that close a specific gap: a store that browsers do not trust needs social proof, one with small baskets needs upsells, one that customers never return to needs email and loyalty. This guide groups the ten best Shopify apps to increase sales by the lever they pull, so you can match an app to your weakest point instead of installing a dozen and hoping. Omniconvert has spent 13 years measuring what drives eCommerce sales and retention, across the CROBenchmark dataset of 7,000+ websites in 15+ industries, against 248+ audit criteria [CROBenchmark Report 2026, Omniconvert].
Below: what these apps are, a comparison of the main categories, the ten apps themselves, how to choose, and a conversion benchmark by app type. Running through all of it is Nexus by Omniconvert, the AI eCommerce growth engine that sits above the stack, segmenting your Shopify customers by value and ranking the next-best action, so the sales apps you install reach the customers most likely to buy.
What Shopify apps to increase sales are
Increasing sales on Shopify comes down to three numbers: how many visitors buy (conversion rate), how much they spend per order (average order value), and how often they come back (repeat-purchase rate). Every sales app is really a tool for moving one of those three. A reviews app lifts conversion by adding trust; an upsell app lifts order value; a loyalty or email app lifts repeat purchases.
Seen that way, the app store stops being overwhelming. Instead of asking which app is best, you ask which of your three numbers is weakest, then look only at the apps built to move it. That is the frame this guide uses, and it is why the apps below are grouped by job rather than ranked in a single list, because the best app for your store is the one that fixes your specific gap.
The main categories of sales-boosting apps
The table below compares the categories, the sales lever each pulls, and example apps, with Nexus by Omniconvert as the intelligence layer that directs the rest. Use it to find the category that matches your weakest number, then choose an app from it.
| App category | Sales lever it pulls | Example apps |
|---|---|---|
| Customer intelligence & personalization | Directs every lever to the right customer | Nexus by Omniconvert |
| Email & SMS marketing | Repeat purchases & recovered carts | Klaviyo, Omnisend |
| Reviews & social proof | Conversion rate | Judge.me, Loox |
| Upsell & cross-sell | Average order value | ReConvert |
| Loyalty & referrals | Repeat purchases & lower acquisition cost | Smile.io, ReferralCandy |
| Subscriptions | Purchase frequency & recurring revenue | Recharge |
| Support & live chat | Conversion & retention | Gorgias |
Notice that most categories pull just one lever, while customer intelligence sits above them, deciding who each lever should reach. A store can add email, reviews, and upsells and still leave sales on the table if all three fire at every customer indiscriminately. The categories are the tools; the intelligence layer is what aims them.
The 10 best Shopify apps to increase sales
These ten apps are grouped by the sales lever they pull, starting with the intelligence layer that directs the rest. Pricing is general; always confirm current pricing on the vendor's site.
1. Nexus by Omniconvert
Nexus by Omniconvert is the intelligence layer of the stack: it unifies your Shopify data into living customer profiles, segments buyers by value with RFM, predicts churn, and ranks the next-best action for each segment. Where the other apps each pull one lever, Nexus by Omniconvert decides which customer that lever should reach, who to upsell, who to win back, and where to personalize, then measures the result. Best for stores that want to aim their whole app stack rather than fire every offer at everyone. Pricing: custom, with a guided demo; confirm current pricing on the vendor's site.
2. Klaviyo
Klaviyo is the leading email and SMS platform for Shopify, built around your store data: automated flows for abandoned carts, welcome series, and post-purchase, plus segmentation and campaigns that drive repeat orders. Recovered carts and repeat purchases are two of the biggest sources of recoverable sales, and Klaviyo is the workhorse for both. Best for data-driven email and SMS marketing. Pricing: free tier for small lists, with paid plans that scale by contacts; confirm current pricing on the vendor's site.
3. Omnisend
Omnisend is an email and SMS marketing app aimed at eCommerce, with pre-built automations, popups, and campaigns designed to be quick to launch. It is a strong fit for stores that want marketing automation without a steep learning curve, and its free tier makes it approachable for smaller catalogs. Best for easy-to-launch email and SMS automation. Pricing: free tier available, with paid plans by contacts and features; confirm current pricing on the vendor's site.
4. Judge.me
Judge.me is one of the most popular review apps on Shopify, collecting and displaying product reviews, photos, and ratings that add trust exactly where buyers decide. Social proof is a direct lever on conversion rate, and Judge.me makes it easy and affordable to add at scale. Best for product reviews and social proof on a budget. Pricing: free plan available, with an inexpensive paid tier; confirm current pricing on the vendor's site.
5. Loox
Loox focuses on photo and video reviews, turning customer content into visual social proof, plus referral and upsell features. Rich, visual reviews are especially persuasive for considered and lifestyle purchases, lifting conversion on product pages. Best for photo and video reviews that convert. Pricing: paid tiers by order volume, with a trial; confirm current pricing on the vendor's site.
6. ReConvert Upsell & Cross Sell
ReConvert owns the post-purchase moment, customizing thank-you pages and checkout with one-click upsells, cross-sells, and follow-up offers. By lifting average order value and prompting a quick second purchase, it raises two direct inputs to revenue without buying more traffic. Best for post-purchase upsells and thank-you-page offers. Pricing: free plan or trial, with paid tiers by order volume; confirm current pricing on the vendor's site.
7. Smile: Loyalty & Rewards
Smile.io is one of the most established loyalty apps on Shopify, running points, referral, and VIP-tier programs that give customers a reason to return and spend more. Loyalty is a direct lever on repeat-purchase rate, and Smile.io makes it approachable for stores of any size. Best for points-and-rewards loyalty programs. Pricing: free plan available, with paid tiers as you add features; confirm current pricing on the vendor's site.
8. ReferralCandy
ReferralCandy turns happy customers into an acquisition channel with automated referral programs, rewarding buyers for bringing in friends. Referred customers tend to convert well and cost less to acquire, so a referral engine adds sales while lowering acquisition cost. Best for word-of-mouth and referral marketing. Pricing: paid monthly plans plus commission, with a free trial; confirm current pricing on the vendor's site.
9. Recharge
Recharge is a leading subscriptions app for Shopify, letting you turn one-off purchases into recurring orders with subscribe-and-save, managed billing, and a customer portal. For replenishable products, subscriptions are the most reliable way to increase purchase frequency and predictable revenue. Best for subscription and recurring-revenue models. Pricing: paid, typically a monthly fee plus a share of subscription revenue; confirm current pricing on the vendor's site.
10. Gorgias
Gorgias is a helpdesk built for eCommerce, centralizing support across email, chat, and social with full order context. Answering objections quickly at the decision point lifts conversion, and great service keeps customers coming back, so support quietly drives both new and repeat sales. Best for support-driven conversion and retention. Pricing: paid tiers by ticket volume, with a free trial; confirm current pricing on the vendor's site.
How to choose a Shopify app to increase sales
With so many strong options, the real trap is installing several and configuring none. Work through these steps to pick the one that fits your store now.
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Name your single weakest leverDecide whether your biggest gap is conversion rate, average order value, or repeat-purchase rate. The right category, reviews, upsells, or email and loyalty, follows directly from that one answer.
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Check integrations and page speedConfirm the app connects cleanly to Shopify and the tools you already use, and watch its effect on load time. A slower store lowers conversion, so an app that drags your speed can cancel out the sales it adds.
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Match it to your budget and volumeA free reviews or loyalty tier is perfect early on; a full marketing or subscriptions platform pays off once you have the order volume to justify it. Do not over-buy for the stage you are at.
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Favor action over dashboardsPrefer apps that do something, recover this cart, reward this customer, offer this upsell, over ones that only show a number. An insight you never act on adds no sales.
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Test one app, prove the returnDefine the metric an app should move before you install it, give it a real 60-to-90-day test, and keep it only if it lifts that number. Then add the next one, so you always know what is working.
Shopify conversion benchmark by app type
Because conversion depends so heavily on category, price point, and traffic, chasing an industry average is less useful than knowing which metric each app type should move and reading your own trend on it. This qualitative benchmark shows what healthy looks like by app type.
| App type | Metric it should move | What good looks like |
|---|---|---|
| Reviews & social proof | Product-page conversion rate | Add-to-cart and conversion rising as review coverage grows |
| Upsell & cross-sell | Average order value | A healthy attach rate that lifts AOV without hurting checkout completion |
| Email & SMS marketing | Repeat-purchase rate & recovered carts | Flows recovering a meaningful share of abandoned carts and driving repeat orders |
| Loyalty & referrals | Repeat-purchase rate | A rising share of returning customers quarter over quarter |
| Subscriptions | Purchase frequency | More orders per customer per year and low subscription churn |
| Support & live chat | Conversion & retention | Faster response times alongside higher conversion and satisfaction |
Read each app against the metric it is supposed to move, not against a headline conversion figure. An upsell app that raises average order value is working even if overall conversion is flat, and a review app that lifts conversion is working even if order value does not change. The benchmark that matters is your own number heading in the right direction after you install.
From more sales to more valuable customers
Every app above is very good at one job: recovering a cart, adding a review, lifting a basket, rewarding a repeat buyer. The harder part is joining them, taking a unified view of each customer and deciding what to do next for whom. That is where Nexus by Omniconvert is aimed. It unifies your Shopify customer data into living profiles, segments buyers by value using RFM, predicts who is about to churn, and ranks the next-best action for each segment, so an upsell, a win-back email, or a loyalty reward reaches the right customer at the right moment.
Think of it as the layer that makes the rest of your stack pay off: your email tool sends, your upsell tool offers, your loyalty tool rewards, and Nexus by Omniconvert decides who each should target and keeps deciding as customers move between segments. For a Shopify store serious about growth, that shift from firing every lever at everyone to aiming each one is where sales stop leaking and start compounding. To see how those value segments are built, read the RFM segmentation guide.
Ready to aim your whole Shopify app stack at the customers most likely to buy again?
See how Nexus by Omniconvert grows sales →Frequently Asked Questions
The best Shopify apps to increase sales fall into a few high-impact categories: email and SMS marketing (Klaviyo, Omnisend) to recover carts and drive repeat orders, reviews and social proof (Judge.me, Loox) to convert more browsers, upsell and cross-sell (ReConvert) to lift average order value, loyalty and referrals (Smile.io, ReferralCandy) to grow repeat purchases, subscriptions (Recharge) to turn one-off buyers into recurring revenue, and support (Gorgias) to answer objections at the decision point. Nexus by Omniconvert sits above them as the customer intelligence layer that segments buyers by value and ranks the next-best action. Pick by the sales lever you are weakest on, not by feature count.
There is no single app that increases sales the most, because it depends on where your store is losing sales. If browsers do not trust you, reviews and social proof apps lift conversion the most. If customers buy once and never return, email, loyalty, and subscription apps do. If order value is low, upsell and cross-sell apps help most. The highest-leverage move is to diagnose your weakest sales lever first, conversion rate, average order value, or repeat-purchase rate, then choose the app category that moves it. Adding apps at random rarely works; matching an app to a specific gap almost always does.
A Shopify store should use as few apps as it takes to cover its real gaps, because every app adds cost, complexity, and potential page-speed drag that can quietly cost you sales. Rather than installing a dozen overlapping tools, pick one app per job, email, reviews, upsells, loyalty, and give each a real 60-to-90-day test before adding another. Watch your store's load time as you add apps, since a slower site lowers conversion and can cancel out the sales an app was meant to add. Quality and fit beat quantity every time.
Yes, the right Shopify app can increase sales, but only when it closes a real gap and you measure the result. An email app that recovers abandoned carts, a review app that adds trust to product pages, or an upsell app that lifts average order value each targets a specific driver of revenue. The key word is specific: an app that duplicates something you already do, or that you install and never configure, adds cost without adding sales. Treat each app as an experiment, define the metric it should move before installing, and keep only the ones that prove a return on your own store's data.
Several strong Shopify sales apps offer free plans that are genuinely useful for smaller stores. Judge.me has a free tier for collecting and displaying product reviews, Smile.io offers a free plan for points-based loyalty, and Omnisend has a free tier for email and SMS marketing. These let you add social proof, loyalty, and marketing automation without upfront cost, then upgrade as volume grows. Always confirm current pricing and free-plan limits on the vendor's site, since app pricing changes, and remember that free is only valuable if the app actually moves a sales metric for your store.
Choose a Shopify sales app by naming your single biggest gap first, then matching an app category to it. If conversion is low, look at reviews and social proof; if order value is low, look at upsells; if customers do not return, look at email, loyalty, or subscriptions. Then check that the app integrates cleanly with Shopify and your existing tools, fits your budget and order volume, and does not slow your store down. Favor apps that act (recover this cart, reward this customer) over ones that only display data, and test one app at a time so you can attribute the lift.
Conversion rates for Shopify stores vary widely by industry, price point, and traffic source, so there is no universal target, but many stores sit in the low single digits, often around 1 to 3 percent, with strong stores pushing higher. What matters more than a headline figure is your own trend and the levers underneath it: add-to-cart rate, checkout completion, average order value, and repeat-purchase rate. Sales-boosting apps work by moving those underlying levers, so the right way to judge an app is not against an industry average but against whether it lifts your store's own numbers over time.
Nexus by Omniconvert is the AI eCommerce growth engine that increases Shopify sales by turning your customer data into action. It unifies your Shopify data into living customer profiles, segments buyers by value using RFM, predicts who is about to churn, and ranks the next-best action for each segment, whether that is an upsell, a win-back, or a personalized offer. Where most sales apps handle one lever, email, reviews, or upsells, Nexus by Omniconvert decides who to target with what and when, so the rest of your app stack pays off. It focuses your sales effort on the customers most likely to buy again.
Do not install five apps and hope. Start by naming the single sales lever you are weakest on: is it conversion rate, average order value, or repeat purchases? Then pick one app from the matching category, reviews if trust is the gap, upsells if baskets are small, email or loyalty if customers do not return, and give it a real 60-to-90-day test with a metric defined up front. Keep it only if it moves that number. As your stack grows, add Nexus by Omniconvert as the layer that decides who to target with what, so every other app works harder. The stores that win on Shopify are not the ones with the most apps; they are the ones that match the right app to the right gap and measure the result.
Turn more sales into more valuable customers with Nexus by Omniconvert
Sales apps each pull one lever; Nexus by Omniconvert decides which customers to pull it for. It unifies your Shopify data, segments buyers by value, predicts churn, and ranks the next-best action for each segment, so your upsells, emails, and offers reach the customers most likely to buy again, and your whole app stack pays off.