ABlyft
Conversion Expert GmbH · Germany · since 2018
Small German A/B testing platform built for developers and experienced testing teams: code-first experiment building, no personal data stored, hosting in Germany, and pricing that is quoted rather than published.
Best for Developer-led testing teams with strict privacy requirements
The verdict
ABlyft is the developer’s pick: Git-versioned experiment code, a real debug mode, the strictest no-personal-data posture in this index, and a genuine free plan with no sales call. It is also a 2–10 person company with no published pricing, no sequential testing and no Shopify app. A sharp tool for teams that know exactly what they are doing.
Rating by Drip Trading GmbH, the company behind Apex by Drip. How we rate and weight
Strengths
- A genuine free tier with no credit card and no sales call, almost no competitor in this class lets you run real experiments before talking to anyone.
- Strictest privacy posture of the German tools: no personal data, no IP, no user ID; self-hostable snippet; bring-your-own-tracker so no event data reaches ABlyft at all.
- Built for developers: Git-versioned snippets, auto-minification, a real debug mode, staging environments and project-level prerequisite rules.
- Reliable Shopify revenue tracking via server-side webhook, immune to ad blockers and missing consent, a real accuracy edge over pixel-only tracking.
- Lightweight: 13 KB snippet on CloudFront, ~30 ms load; highest DACH user rating in this set (4.9/5 from 112 OMR reviews).
Weaknesses
- No public pricing at all, every paid deployment starts with a quote.
- Very small vendor: 2–10 employees, run by the same team as the conversion.expert agency, real continuity risk for enterprise buyers.
- Server-side experimentation and feature flags are in closed beta ("contact us before you start implementing").
- No sequential testing and no sample-size or duration calculator.
- No Shopify app and no checkout-UI testing; no documented Shopware or Magento integrations.
- Thin public surface: minimal visual-editor docs, no public changelog, no published SOC 2/ISO 27001, no downloadable DPA.
The facts
| Statistics | Frequentist and Bayesian, selectable per experiment, with a configurable certainty level (50–99.9%) and a minimum-conversions threshold. No sequential testing and no sample-size calculator. |
| Shopify | No Shopify App Store app. Integration is snippet plus documented tracking wiring: a server-side order webhook (immune to ad blockers and missing consent) and/or the Customer Event Pixel. No checkout-UI testing. |
| Privacy & hosting | The strictest privacy posture in this comparison: no personal data stored at all, no IP, no user ID. German hosting, localStorage instead of cookies, self-hostable snippet, bring-your-own-tracker option. No SOC 2 or ISO 27001 claimed. |
| Pricing | A genuine free plan (no credit card, no sales call) plus a quoted paid plan billed by tested users. No public numbers. |
Sources
- Free plan, quoted paid plan: https://ablyft.com/ (accessed 2026-09-01)
- No personal data, German hosting: https://ablyft.com/en/features/data-protection-privacy (accessed 2026-09-01)
- Statistics settings: https://docs.ablyft.com/results-and-statistics/statistic-settings (accessed 2026-09-01)
- Shopify webhook + pixel tracking: https://docs.ablyft.com/goals/shopify-tracking (accessed 2026-09-01)
- Feature Experimentation API closed beta: https://docs.ablyft.com/feature-experimentation-api/get-started (accessed 2026-09-01)
- 13 KB snippet, ~30 ms, self-hosting: https://ablyft.com/en/features/performance (accessed 2026-09-01)
- OMR rating 4.9/112: https://omr.com/en/reviews/product/ablyft (accessed 2026-09-01)