8,000+ apps and choosing wrong costs money and performance. After testing hundreds, here are the essential picks by category and budget.
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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.
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