Shopify apps designed to increase sales are essential tools for converting store traffic into revenue. These applications enhance various aspects of the customer journey, from personalized product recommendations to automated email marketing and loyalty programs, ultimately driving higher conversion rates and customer retention.
- StoreFrog Product Recommendations offers customizable widgets for upselling and cross-selling, enhancing product discovery.
- CWILL Popup Email Marketing captures leads through engaging popups and automates follow-up emails, improving customer engagement.
- Klip Coupons Product Discounts simplifies the checkout process with clippable coupons, reducing friction and encouraging purchases.
- BOOSTER AI SEO + AEO OPTIMIZER automates SEO tasks to boost organic traffic, which is critical for increasing sales.
- Smile: Loyalty Program Rewards incentivizes repeat purchases through a points system and referral rewards, fostering customer loyalty.
- Vitals consolidates over 40 marketing tools into one app, streamlining store management and enhancing conversion opportunities.
Getting traffic to your Shopify store is only half the job. The other half is turning visitors into buyers, increasing each order size, and bringing customers back for more.
That’s exactly what the best Shopify apps to increase sales do. The 10 apps below cover the whole journey, from capturing emails and recommending the right products to collecting reviews and rewarding loyal shoppers. Here’s what each one does and where it fits in your store.
1. StoreFrog Product Recommendations

StoreFrog Product Recommendations lets you create personalized recommendation widgets that push upsells, cross-sells, and product discovery across your store. It comes with ready-made templates for frequently bought together, bestsellers, new arrivals, recently viewed, hot sellers, and related products.
You can show widgets on the shop page, product pages, the Thank You page, and even your 404 page, so a dead-end visit still gives shoppers somewhere to go.
Custom recommendations let you set your own rules and conditions for each widget. The built-in analytics then show which widgets actually drive clicks and conversions, so you know what to keep.
Key features:
- Frequently bought together, bestseller, new arrival, and recently viewed widgets
- Upsell and cross-sell recommendations
- Custom recommendations with display rules and conditions
- Widgets on shop, product, 404, and Thank You pages
- Click-through, conversion, and widget performance analytics
- Ready-made templates with a simple setup
2. CWILL Popup Email Marketing

CWILL Popup Email Marketing combines list-building popups with email marketing in one app. You can capture subscribers through email popups, exit-intent forms, newsletter signup forms, and spin-the-wheel offers.
Once subscribers are in, the app handles the follow-up. Welcome, abandoned cart, win-back, and post-purchase automations run on their own, while a drag-and-drop editor handles one-off campaigns.
The app works with Klaviyo, Mailchimp, SMSBump, and Privy, and syncs subscribers with Shopify Email.
Key features:
- Email and SMS popups, exit-intent forms, and spin-the-wheel games
- Discount popups to convert first-time visitors
- Drag-and-drop email editor with professional templates
- Automated welcome, cart recovery, win-back, and post-purchase emails
- Popup targeting, geolocation, and segmentation
- Integrations with Klaviyo, Mailchimp, SMSBump, Privy, and Shopify Email
3. Klip Coupons Product Discounts

Klip Coupons Product Discounts puts clippable coupons right on your product pages, cart, and collection pages. Shoppers click to clip the coupon, and the discount applies automatically at checkout. No code to copy, no code to forget.
That small change removes a common source of checkout friction. Beyond clippable coupons, you can set up product, order, and shipping discounts, volume and tiered pricing, and BOGO free gifts.
Countdown timers and crossed-out pricing add urgency to flash sales. Targeting options let you show offers by customer, tag, collection, or location.
Key features:
- Clippable coupons on product, cart, and collection pages
- Auto-applied discounts at checkout with no coupon code
- Product, order, shipping, volume, and tiered discounts
- BOGO and free gift offers
- Countdown timers and strikethrough sale pricing
- Targeting by customer, tags, collection, location, and usage limits
- Coupon analytics for clips, redemptions, and sales
4. BOOSTER AI SEO + AEO OPTIMIZER

BOOSTER AI SEO + AEO OPTIMIZER handles the technical SEO work most store owners never get around to. It scans your store continuously and fixes issues like missing alt text, broken links, and weak meta tags automatically.
Why an SEO app on a sales list? More qualified organic traffic means more chances to sell, and faster pages convert better. Booster compresses and optimizes images to help your store load quicker.
It also gets your store ready for AI search. LLMs.txt, structured data, and AI-optimized meta tags help your products show up in ChatGPT, Gemini, and other AI assistants.
Key features:
- Automatic SEO fixes on autopilot
- Image compression and alt text optimization
- Broken link detection, fixes, and redirects
- Meta title and description templates
- Rich snippets and JSON-LD structured data
- LLMs.txt and AI search optimization
- Google Search Console integration and SEO reports
5. Attrac Popup, Announcement Bar

Attrac Popup Announcement Bar brings most onsite marketing campaigns into a single app. That includes announcement bars, banners, popups, upsell and cross-sell offers, frequently bought together bundles, and email and SMS signup forms.
The free shipping bar is a quiet AOV driver. It shows shoppers how close they are to the threshold, which nudges them to add one more item before checking out.
You can target campaigns by page, device, and audience, schedule them ahead of a sale, and translate them for international shoppers. Analytics go deeper than basic views and clicks.
Key features:
- Multi-announcement, countdown timer, and free shipping bars
- Upsell, cross-sell, and frequently bought together campaigns
- Opt-in, discount, free shipping, and exit-intent popups
- Embedded banners on product pages and in the cart drawer
- Page, device, audience, and geo-targeting
- Campaign scheduling and multi-language support
- Integrations with Klaviyo, Mailchimp, Omnisend, PageFly, and Seguno
6. Judge.me Product Reviews App

Judge.me Product Reviews App helps you collect and display the social proof that first-time buyers look for before they commit. It sends automated review request emails after purchase and lets customers leave photo and video reviews.
Those reviews show up through star ratings, carousels, testimonial sliders, and review pages you can style to match your theme. A Q&A section lets shoppers ask questions right on the product page instead of leaving to find answers.
Judge.me also syncs ratings with Google Shopping and supports rich snippets. That means your star ratings can appear in search results and product ads, not just on your store.
Key features:
- Automated review request emails
- Photo and video reviews
- Star rating badges, carousels, and review widgets
- Product Q&A
- Review imports from other apps and CSV files
- Google Shopping sync and SEO rich snippets
7. Rebuy Personalization Engine

Rebuy Personalization Engine uses AI and your store data to personalize the shopping experience from the first visit through post-purchase. It powers recommendations, upsells, and cross-sells on product pages, in the cart, at checkout, and on the thank you page.
Its Smart Cart swaps the default cart for one with built-in upsells, add-ons, and a free shipping progress bar. Post-purchase offers let customers add items with one click after they’ve already paid.
Rebuy also carries personalization beyond the storefront. Integrations with tools like Klaviyo let you use the same recommendation logic in emails, and reorder landing pages make repeat purchases easier.
Key features:
- AI-powered product recommendations
- Smart Cart with upsells and progress bars
- Checkout and post-purchase upsell offers
- Reorder landing pages for repeat buyers
- A/B testing for widgets and offers
- Integrations with Klaviyo, Recharge, and other popular apps
8. Smile: Loyalty Program Rewards

Smile: Loyalty Program Rewards turns one-time buyers into repeat customers with points, referrals, and VIP programs. Customers earn points for purchases, account signups, birthdays, and social follows, then redeem them for discounts.
The referral program rewards both the customer and the friend they bring in, which gives word-of-mouth a clear incentive. VIP tiers unlock better perks as your best customers spend more.
The app adds a branded loyalty launcher and rewards panel to your storefront, so shoppers can check their points without leaving the page. Integrations with email tools like Klaviyo let you show point balances in your campaigns, giving customers another reason to come back.
Key features:
- Points program for purchases and custom actions
- Referral rewards for customers and their friends
- VIP tiers with exclusive perks
- Branded loyalty launcher and rewards panel
- Loyalty data in email campaigns through integrations
- Program analytics and reporting
9. Vitals

Vitals packs 40+ marketing and conversion tools into a single app. It’s built for store owners who are tired of installing a separate app for every small feature. Reviews, upsells, bundles, and trust badges all live in one dashboard.
Fewer apps also means fewer scripts loading on every page. Running one install instead of several can keep the store lighter and the app stack easier to manage.
The toolkit goes well beyond the basics. It also includes a sticky add-to-cart button, countdown timers, a currency converter, a wishlist, and product videos.
Key features:
- 40+ conversion and marketing tools in one app
- Product reviews and trust badges
- Upsells, bundles, and volume discounts
- Sticky add-to-cart button
- Countdown timers and stock scarcity alerts
- Currency converter and wishlist
10. Brevo PushOwl

Brevo PushOwl started as a web push notification app and now covers email and SMS too. Web push lets you reach shoppers right in their browser with a one-click opt-in, no email address required.
Automated flows handle abandoned cart reminders, back-in-stock alerts, and price drop alerts. Those are the moments when shoppers are most likely to come back and buy, and the app catches them without any manual work.
You can also send promotional campaigns across push, email, and SMS from one place. Segmentation helps you reach the right shoppers instead of blasting your whole list.
Key features:
- Web push notifications with one-click opt-in
- Abandoned cart recovery across push, email, and SMS
- Back-in-stock and price drop alerts
- Shipping and order update notifications
- Multichannel promotional campaigns
- Customer segmentation and campaign analytics
The right Shopify apps can help you turn more of your existing traffic into sales without adding unnecessary complexity to your store. Whether you want to increase average order value with product recommendations, recover abandoned carts, build trust with reviews, improve customer retention, or bring shoppers back with targeted campaigns, there’s an app designed for the job.
The key is not to install every sales app you come across. Start by identifying where shoppers are dropping off or where your store has the biggest growth opportunity, then choose an app that addresses that specific need.
The Shopify apps covered in this list tackle different parts of the customer journey, from attracting and converting first-time visitors to increasing order value and encouraging repeat purchases. Choose the ones that fit your current goals, track their impact, and build your app stack around what actually drives measurable sales growth.