8,000+ apps and choosing wrong costs money and performance. After testing hundreds, here are the essential picks by category and budget.
Table of Contents
Email Marketing
Start with Shopify Email (free, 10K emails/mo). Upgrade to Klaviyo for powerful segmentation when list exceeds 1,000 subscribers.
Reviews: Judge.me
Best free plan with photo reviews, Google rich snippets, and automated requests. Loox for premium photo galleries.
Upselling: Selleasy
Free plan for frequently bought together and post-purchase upsells. 10-30% AOV increase typical.
Image Optimization: TinyIMG
Auto-compress without quality loss. Highest ROI category since speed improves both conversion and SEO.
Stacks by Budget
Free ($0/mo): Shopify Email + Judge.me + Smart SEO + TinyIMG + Shopify Inbox + Selleasy.
Growth (~$100/mo): Klaviyo + Judge.me Paid + TinyIMG + AfterShip + ReConvert + Tidio.
Scale (~$300/mo): Klaviyo+SMS + Loox + Gorgias + ReConvert + ShipStation + Rewind.
