Pricing

Our feature flag checks and stats collection are designed, optimized and benchmarked to be as light as possible, and no performance penalty is observed when using them.

Feature flags allow developers to deploy changes to their code without the risk of breaking everything. They can also be used to test out new features with a subset of users before rolling them out more broadly. Finally, they can be used to experiment with different ways of solving a problem by turning on different flags and seeing which one works best.

In general, any modern programming language can support feature flags. We directly support .NET, JavaScript, Flutter, and plain HTML/CSS, and we are working on adding more. We're very friendly, get in touch if you use any technology we don't already support.

We are very passionate about speed and uptime, but in the case it does happen, we've accounted for it. Our SDKs evaluate feature flags locally, so there's never any latency; we refresh feature definitions in the background, make use of caching headers to minimize bandwidth, smart circuit breakers, timeouts and retries. If a refresh fails and the definition has changed, worst case scenario is the definition is stale until it reconnects.

Both the Feature Usage Service and Metrics Service aggregate data inside your app, and only send the results of the aggregation to Toggly on a schedule. No PII is collected or sent the way we designed it, and all the code for the client libraries is open-source.