Best Shopify Apps for Small Business (Free and Low-Cost)

Short answer

The most impactful Shopify apps for small businesses: Judge.me (product reviews, free), Klaviyo (email marketing, free to 500 contacts), ReConvert (post-purchase upsell), and Vitals (a bundle of 40+ conversion tools). Add these before adding anything else.

Reviews

Judge.me — Free

Automated post-purchase review requests, photo reviews, and display widgets. The free plan is generous enough for most small stores. Loox (loox.com) is a premium alternative with a stronger visual review layout.

Why you need it: Products with 20+ reviews convert at 2–3x the rate of products with zero reviews.

Email marketing

Klaviyo — Free up to 500 contacts

Industry-leading eCommerce email platform. Deep Shopify integration — sends abandoned cart, post-purchase, win-back, and browse-abandonment sequences automatically.

Why you need it: Abandoned cart recovery alone typically generates 5–15% additional revenue with no ad spend.

Post-purchase upsell

ReConvert — From $4.99/month

Adds a thank-you page after checkout with a one-click upsell offer and reorder prompts. Average merchants see 10–15% AOV increase.

Why you need it: The moment after a purchase is the highest-intent moment in the customer journey. Most stores waste it.

Conversion optimisation

Vitals — From $29.99/month

40+ tools in one app: product reviews, upsells, countdown timers, currency converter, trust badges, wishlists, and more. Saves installing and paying for 5–10 separate apps.

Why you need it: High-value bundle if you need multiple tools; cheaper than individual apps combined.

Inventory and operations

DSers — Free

Best-in-class dropshipping integration for AliExpress. Essential if you're running a dropshipping business.

Stock Sync — From free

Syncs inventory from suppliers automatically. Critical for preventing overselling if you use multiple inventory sources.

Shipping

EasyShip — Free to start

Compares rates across 250+ couriers, auto-generates labels, and handles tax documents for international orders. Saves significant time if you're shipping manually.

What to add and when

Day 1: Judge.me (reviews) + Klaviyo (email) Month 1: ReConvert (post-purchase upsell) Month 3: Vitals if you need more conversion tools

Don't add apps you don't need — each one slows your site slightly.