AB Tasty vs Flagsmith
Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
Quote on request
Quote onlyFrom $40 per month (Start-Up, billed yearly; $45 monthly)
Free tierWhat drives the bill
The metric that actually scales your invoice.
Quote-based annual contracts priced by traffic volume, now sold as part of the merged Wingify platform.
Free covers 50k requests a month and one seat; Start-Up raises that to 1M requests and 3 seats, Scale-Up is $250/month yearly. Considerably cheaper than LaunchDarkly, and self-hosting removes usage pricing entirely.
Free tier
No free tier; demo on request.
Free cloud tier with a monthly request allowance; open-source self-hosting is unlimited.
Open source
BSD-3-Clause (core)
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Established
Wingify (VWO + AB Tasty) · since 2009
Established
Flagsmith · since 2018
Strengths
- EU hosting and GDPR posture simplify European procurement.
- Good balance between marketer-friendly editing and server-side flags.
- Strong support reputation in European markets.
- Genuinely easy self-hosting with a Docker image and Helm chart.
- Simple, comprehensible pricing.
- Remote config alongside flags, which covers a lot of mobile use cases.
Limitations
- Less well known outside Europe, with a smaller partner ecosystem.
- Quote-based pricing with no self-serve entry.
- Statistics engine is less differentiated than the warehouse-native platforms.
- Experimentation features are basic.
- Smaller company and community than the leaders.
- Fewer governance controls for large organisations.
Best for
European e-commerce and media companies with GDPR-driven vendor requirements.
Teams wanting straightforward flags without LaunchDarkly pricing or Unleash's operational depth.
All of these integrate with: Segment, Slack.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.