Methodology
How this index is made
The reader we rank for is an online business, a merchant or the agency working for them, asking one question: which A/B testing tool will deliver measurable revenue impact at a defensible cost? We do not rank for feature-count, funding news or brand size.
Evidence rules
- Every factual claim links to a source we actually loaded, with an access date. No search-snippet facts.
- Where a vendor’s own pages contradict each other (it happens more than you would think), we say so instead of picking a side.
- What we could not verify is labeled unverified, and never rated as if it existed.
- Review-platform scores are only cited where we could load the page ourselves; several platforms block automated access, and we do not launder snippets into facts.
Ranking weights
| 30% | What you can actually test in a store Charged price, shipping offers, checkout, post-purchase: how far into the money flow the tool reaches, and what it takes to get there (Shopify Plus, a developer, a paid add-on app). |
| 25% | Order data you can trust Order-level revenue, refunds, deduplication, average order value and revenue per visitor, and whether orders survive ad blockers and missing consent. |
| 20% | Install path on shop platforms App install versus theme edit versus developer project, App Store track record, and support for WooCommerce, Shopware and custom storefronts. |
| 15% | Cost per tested visitor Flat rate versus monthly tracked users, what a traffic spike costs, and which store capabilities are metered extras. |
| 10% | Running tests without a developer Launching and QA on a live shop, automatic protection when a variation loses money, and multi-store or agency accounts. |
Updates
Facts are re-checked monthly; the full ranking is re-evaluated quarterly. Each page carries its last-reviewed date. Current edition: 2026-09-01.
Independence & disclosure
This site is operated by the company named in the imprint. We link to vendors directly and use no affiliate links. If a ranked vendor relationship exists, the imprint is the authoritative disclosure.