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Justuno vs Rebuy

Updated June 2026 · A structured head-to-head comparison.

On-site conversion and personalization.

AI-powered personalization for Shopify.

The verdict

Both Justuno and Rebuy are credible ab testing tools, and the right pick comes down to your priorities.

Choose Justuno if you want a lower starting price (free – $39/mo) and a free plan to start on. On-site conversion and personalization.

Choose Rebuy if you'd rather have a longer free trial (21 days) and a higher overall rating (4.7/5). AI-powered personalization for Shopify.

Justuno vs Rebuy: side by side

DimensionJustunoRebuy
Starting priceFree – $39/moWinnerFrom $99/mo
Free planYesWinnerNo
Free trial21 daysWinner
Pricing modelSubscriptionSubscription
Best forEcommerce, MarketersShopify Brands
PlatformsWeb, ApiWeb, Api
Rating4.5/54.7/5Winner

Justuno key facts

Vendor
Justuno
Pricing
Subscription — Free – $39/mo
Free tier
Yes
Platforms
Web, Api
Best for
Ecommerce, Marketers
Editor rating
4.5 / 5
Founded
2010
Headquarters
San Francisco, CA, USA

Rebuy key facts

Vendor
Rebuy
Pricing
Subscription — From $99/mo
Free tier
Free trial (21 days)
Platforms
Web, Api
Best for
Shopify Brands
Editor rating
4.7 / 5
Founded
2017
Headquarters
Steamboat Springs, CO, USA

Frequently asked questions

Is Justuno better than Rebuy?

Neither is universally better — Rebuy edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.

Is Justuno or Rebuy cheaper?

Justuno is the more affordable of the two to get started, at free – $39/mo. Justuno starts at free – $39/mo; Rebuy starts at from $99/mo.

Can Justuno replace Rebuy?

Yes for most teams — both are ab testing tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.