Best Shopify Apps 2025: Must-Have Apps for Every Store
The Shopify App Store has 8,000+ apps. Most are unnecessary. This guide covers the best apps by category — the ones that genuinely move the needle for Shopify stores.

Email Marketing
Klaviyo — Best Overall
Price: Free up to 500 contacts / $20–$60+/month
Klaviyo is the email and SMS marketing platform of choice for Shopify stores. Its Shopify integration is deep — you can segment based on purchase history, browsing behavior, cart value, and more.
Essential Klaviyo flows:
- Abandoned cart — recover up to 5–15% of abandoned carts
- Welcome series — engage new subscribers immediately
- Post-purchase — thank customers and request reviews
- Win-back — re-engage inactive customers
The abandoned cart flow alone pays for Klaviyo multiple times over for most stores.
Mailchimp — Best Free Option
Price: Free up to 500 contacts
Mailchimp’s Shopify integration is simpler than Klaviyo but free at low volumes. Good for new stores building their first email list.
Product Reviews
Judge.me — Best Free Reviews App
Price: Free / $15/month (Pro)
Judge.me automates review collection via email after purchase. Its free plan includes unlimited reviews, photo and video reviews, review widgets, and Google Shopping review feeds. One of the best free apps in the Shopify ecosystem.
Loox — Best for Visual Reviews
Price: $9.99/month
Loox specializes in photo and video reviews. For visual products (fashion, food, beauty, home goods), photo reviews are significantly more persuasive than text reviews. Loox also powers a referral program.
Upsells and Revenue Optimization
ReConvert — Best Post-Purchase Upsell
Price: Free / $4.99+/month
ReConvert customizes the order confirmation page — traditionally a missed opportunity — with upsells, product recommendations, and customer surveys. High ROI for minimal setup.
Frequently Bought Together
Price: $9.99/month
Adds Amazon-style “frequently bought together” bundles to product pages. Simple, effective, and one of the highest-ROI upsell apps available.
Loyalty and Retention
Smile.io — Best Loyalty App
Price: Free / $49+/month
Smile.io creates a loyalty points program where customers earn points for purchases, reviews, and referrals, then redeem them for discounts. The free plan includes basic points and referrals — sufficient for most growing stores.
LoyaltyLion — Enterprise Loyalty
Price: Free / $199+/month
For larger stores, LoyaltyLion offers more sophisticated loyalty program structures, deeper analytics, and integrations with Klaviyo and other marketing tools.

SEO
Plug In SEO
Price: Free / $20/month (Pro)
Plug In SEO audits your store and provides specific, actionable fixes for meta tags, image alt text, broken links, and structured data. Its automated checking saves significant time.
TinyIMG
Price: Free / $9.99/month
TinyIMG compresses and renames Shopify product images for SEO — something Shopify doesn’t do natively. Properly named images (blue-running-shoes.jpg) rank better in Google Image Search.
For the full SEO strategy, see our Shopify SEO guide.
Customer Support
Tidio
Price: Free / $29+/month
Tidio adds live chat and AI chatbot to your Shopify store. The AI handles common questions (order status, shipping times, return policy) automatically, reducing support volume.
Gorgias
Price: $10+/month
Gorgias consolidates all customer support channels (email, chat, social media) in one helpdesk. Shopify order data appears directly in ticket threads. The standard for growing Shopify brands.
Shipping and Fulfillment
ShipStation
Price: $9.99–$159.99/month
ShipStation manages the entire fulfillment workflow — connecting to carriers (USPS, UPS, FedEx, DHL), batch label printing, and automated order routing. Essential once you’re shipping 50+ orders/day.
AfterShip Returns
Price: Free / $9+/month
Self-service returns portal that reduces support emails and improves the post-purchase experience. Customers track returns themselves rather than emailing support.
Our Recommended App Stack
For a new store (year 1):
- Klaviyo (free tier) — email marketing from day one
- Judge.me (free) — automated review collection
- Smile.io (free) — basic loyalty program
- Plug In SEO (free audit) — identify and fix SEO issues
- ReConvert (free trial) — post-purchase upsell
Useful resources: