Best Neat A/B Testing Alternatives for Shopify in 2026

Neat A/B is a Shopify-native A/B testing app focused specifically on theme-level tests — pricing, copy, banners, and section visibility. It's purpose-built, well-integrated with Shopify, and approachable enough for non-technical operators to run a handful of tests per quarter. For stores that want simple yes/no questions answered on theme components, Neat A/B does the job.

The limit appears once stores want to optimize the things that compound — reviews, UGC, product page detail layouts. Neat A/B is a binary tester: variant A vs variant B, pick a winner, move on. It doesn't run population-based exploration, doesn't tie results to per-section revenue-per-visitor, and doesn't iterate on winners once they're chosen. Stores reach a point where the next interesting test isn't binary anymore.

Eevy AI's genetic algorithm is built for the compounding problem. Instead of one test at a time, it evolves a population of variants — layouts, orderings, visual treatments — against Shopify revenue data, killing underperformers and breeding winners continuously. For occasional theme tests, Neat A/B remains useful. For conversion-critical surfaces that benefit from continuous optimization, Eevy does the work Neat A/B isn't built for.