Apex by Drip
Drip Trading GmbH · Germany · since 2019
A/B testing platform for ecommerce brands and agencies that predicts which tests win, built on the world’s largest experiment corpus of 4.3 million A/B tests across 151,000 shops.
Best for Shopify and multi-platform stores that want to test price, shipping and post-purchase, not just page copy
The verdict
Apex is the only tool here that reaches past the storefront into the money: Shopify Cart Transform makes the tested price the price the customer is actually charged, and shipping offers and post-purchase upsells are first-class test types instead of workarounds. Results sit on order-level revenue with refunds, deduplication, average order value and revenue per visitor, and a prediction model trained on 4.3 million tests from 151,000 shops lifts the average program win rate from 27% to 55%. Two honest caveats: the commerce surfaces are switched on per shop by Apex staff rather than self-serve, and revenue significance is deliberately gated in code after an internal certification measured false-positive rates above 20%. The Shopify app passed Shopify’s review but is not App Store listed, so merchants install through a direct link, and pricing only exists in a call.
Rating by Drip Trading GmbH, the company behind Apex by Drip. How we rate and weight
Strengths
- The only tool that predicts test outcomes: trained on 4.3M real A/B tests from 151k shops, it roughly doubles the average win rate (27% → 55%), twice the winners per testing budget.
- Commerce-native testing nobody else in this index matches: real charged-price tests (Shopify Cart Transform), shipping-cost tests and post-purchase experiments.
- A genuinely full stack: visual and code editors, AI-assisted variation building, feature flags with rollouts and schedules, personalization with built-in holdback measurement, heatmaps and session replay.
- Honest statistics: SRM gate, Holm-Bonferroni correction, optional always-valid sequential analysis, and revenue significance deliberately gated instead of over-promised.
- Serious platform surface for agencies: ~134-path public API with scoped keys, signed webhooks, CLI and MCP server, shareable QA preview links that work without a login, client roles and SAML SSO.
Weaknesses
- Young product (launched September 2026): no long public track record or review-site history yet.
- No server-side SDKs: server-side testing runs through a decide API and a deployable edge worker, so backend integration means raw HTTP, not a Node/PHP/Python library.
- Some surfaces ship entitlement-gated or as labs features (personalization dashboard, on-site editor): ask in the demo what is enabled for your plan.
- No pricing on the website; every engagement starts with a call.
The facts
| Statistics | Frequentist engine with deliberately conservative defaults: fixed-horizon testing with Holm-Bonferroni correction and a sample-ratio-mismatch gate, plus optional always-valid (mSPRT) sequential analysis. Revenue significance is intentionally held back after internal certification measured 20%+ false-positive rates on naive revenue tests. On top: win-rate prediction from the 4.3M-test corpus lifts the average program win rate from 27% to 55%. |
| Shopify | Shopify app that passed Shopify’s review (installs via OAuth from the dashboard; not App-Store-listed yet), plus WooCommerce, Shopware, Centra and custom storefronts. Unique in this index: real charged-price tests via Shopify Cart Transform, shipping-cost tests and post-purchase experiments. |
| Privacy & hosting | German vendor with European infrastructure: London (Vercel, Tinybird analytics) and Ireland (Supabase), Cloudflare edge delivery. Cookie/localStorage visitor IDs (365 days), no fingerprinting, visitor IPs never stored; integrations for 8 consent managers; DPA with subprocessor annex. |
| Pricing | Managed plans, scoped in a call. Book a demo to get a proposal for your shop. |
Sources
- Corpus size and win-rate numbers (vendor): https://dripagency.de/apex (accessed 2026-09-01)
- Feature set, platform surface, hosting (vendor statement, verified against the product 2026-09-01): https://dripagency.de/apex (accessed 2026-09-01)