Choosing the best Shopify apps to increase sales isn’t about installing everything the App Store offers — it’s about picking a handful of tools that actually move the numbers that matter: conversion rate, average order value, and repeat purchases. Below are 10 apps worth knowing about, what they actually do, and what they cost.
What Are the Best Shopify Apps to Increase Sales?
Every app below fits into one of a few jobs: getting a visitor to come back, building trust so they buy, increasing what they spend, or turning them into a repeat customer. Here they are, roughly in the order most stores should consider adding them.
Klaviyo
Email & SMS Marketing
- Automated flows for welcome, abandoned cart, and post-purchase
- Customer segmentation based on behavior and purchase history
- Revenue-per-campaign reporting
Recovers sales that would otherwise be lost — used by 260,000+ Shopify stores.
Omnisend
Email, SMS & Push
- Ready-made campaign templates
- Exit-intent popups and spin-to-win signup forms
- Welcome, abandoned cart, and post-purchase automation
Similar automation depth to Klaviyo, at a lower starting price.
Judge.me
Reviews & Social Proof
- Review widgets on product pages
- Automated review-request emails
- Built-in Q&A section
Genuine reviews near the buy button can lift conversion 18–20% on average.
Loox
Visual / Photo Reviews
- Photo and video customer reviews
- Customizable gallery widgets
- One-click referral system
Especially strong for fashion, beauty, and home decor — visual proof drives conversion.
Smile.io
Loyalty & Rewards
- Points-based rewards program
- Referral tracking
- VIP tiers and redeemable perks
Loyalty programs increase repeat purchase rate and customer lifetime value.
ReConvert
Post-Purchase Upsell
- One-click upsells on the thank-you page
- Post-purchase surveys
- Order tracking widgets
Post-purchase offers convert at 5–15% since the buyer has already committed.
Privy
Popups & Cart Recovery
- Exit-intent popups
- Email list capture
- Abandoned cart recovery emails
Catches visitors before they leave, and brings back the ones who don’t finish checking out.
Vitals
All-in-One Conversion Toolkit
- 40+ tools: reviews, bundles, sticky cart, wishlist, trust badges
- Product bundles and BOGO offers
- Visitor session recordings
Replaces several separate apps with one, which helps keep your store fast instead of slowed down by app bloat.
ReferralCandy
Referral & Affiliate
- Automated referral rewards
- Affiliate program tracking
- Built-in fraud protection
Turns happy customers into a sales channel instead of relying only on paid ads. Note: a success fee (roughly 10.5% down to 0.25% depending on plan) applies on top of the base price for referred sales.
PageFly
Landing Page Builder
- Drag-and-drop page builder
- Templates for product, collection, and campaign pages
- Works without needing a developer
Lets you build high-converting custom pages for campaigns or new product launches quickly.
How Many of These Apps Do I Actually Need?
You don’t need all 10 at once, and running too many apps at the same time can slow your store down — the opposite of what you’re trying to achieve. A reasonable starting stack for a new or small store looks like one email tool (Klaviyo or Omnisend), one review app (Judge.me or Loox), and Privy for cart recovery. Add loyalty, upsell, and referral tools once your store has steady repeat traffic to make them worthwhile.
If your store already runs 15 or more apps and feels slow, it’s worth auditing which ones you actually use — see our guide on the custom Shopify app option if several of your apps could be replaced by one purpose-built tool.
Frequently Asked Questions
What are the best Shopify apps to increase sales?
Apps that target a specific part of the buying journey tend to work best — email/SMS marketing (Klaviyo, Omnisend) to bring people back, reviews (Judge.me, Loox) to build trust, and cart recovery (Privy) to catch visitors who almost bought. Combining a few of these usually outperforms installing many overlapping apps.
What Shopify apps do I actually need for my store?
At minimum, an email marketing tool and a review app cover the two most proven levers for sales: staying in touch with past visitors and building trust with new ones. Everything else — loyalty, upsells, referrals — is worth adding once your store has steady traffic to make them pay off.
Which Shopify apps help with abandoned cart recovery?
Privy and Omnisend both include abandoned cart recovery as part of their core features, sending automated emails to bring shoppers back to finish checking out. Klaviyo can also be configured for cart recovery once you’re on a paid plan with automation flows enabled.
How many apps should a Shopify store actually have?
There’s no fixed number, but each app adds some amount of code that can slow your store down. A good rule of thumb is to only keep apps you can name a specific reason for using. Many stores can cover their core needs with 5 to 8 well-chosen apps rather than 15 or more.
What Shopify app increases average order value?
ReConvert is built specifically for this, offering one-click upsells right after a customer completes checkout. Vitals also supports bundles and volume discounts that encourage larger orders at the product and cart stage, before checkout even begins.
Are paid Shopify apps worth it over free ones?
Often yes, once your store has real traffic. Free plans are usually capped — limited emails, limited reviews, limited orders — and paid plans remove those caps along with adding features like advanced automation or unlimited referrals. For a brand-new store, starting free and upgrading once you hit the limits is a reasonable approach.
What Shopify app should I use for upselling?
ReConvert is the most focused option, built entirely around post-purchase upsells on the thank-you page. Vitals offers upsell features too, bundled with 40+ other tools, which can be a better fit if you want upsells alongside reviews and other conversion tools in one app.
What’s the best Shopify app for email marketing?
Klaviyo is the most widely used, with the deepest automation and segmentation features, but it’s priced higher as your list grows. Omnisend offers much of the same core functionality — automated flows, list-building popups — at a lower starting price, making it a solid choice for growing stores watching costs closely.
What Shopify app helps with SEO?
Dedicated Shopify SEO apps exist, but many of the biggest SEO issues on Shopify stores come from site structure and content rather than something an app alone can fix. For the full picture on this, see our guide on the Shopify SEO problem.
What Shopify app improves page speed?
No single app reliably improves speed — in fact, most apps add some amount of load time. The best approach for speed is auditing which apps you’re running and removing ones you don’t use, rather than adding another app specifically for speed. Vitals can help here since it consolidates several tools into one, reducing the total number of separate apps running on your store.