[oddx]

I dedicated a day to evaluating feature flag software based on specific criteria:

    - Must support multiple SDKs, including Java and Ruby.
    - Should be self-hosted with PostgreSQL database support.
    - Needs to enable remote configuration for arbitrary values (not just feature flags). I don't run two separate services for this.
    - Should offer some UI functionality.
    - it should cache flag values locally and, ideally, provide live data updates (though pooling is acceptable).

Here are the four options that met these basic criteria and underwent detailed evaluation:

    - Unleash: Impressive and powerful, but its UI is more complex than needed, and it lacks remote configuration.
    - Flagsmith: Offers remote configuration but appears less polished with some features not working smoothly; Java SDK error reporting needs improvement.
    - Flipt: Simple and elegant, but lacks remote configuration and local caching for Java SDK.
    - FeatureHub: Offers fewer features than Unleash and Flagsmith; its Java API seems somewhat enterprisly but supports remote configuration and live data updates.

Currently, I'm leaning towards FeatureHub. If remote configuration isn't necessary, Unleash offers more features, and if simplicity is key and local caching isn't needed, Flipt is an attractive option.

[bullcitydev]

Hey thanks for giving Flipt a look! I'm the creator of Flipt so would love to chat more about your needs to see how we could make it work for your use case! We're actively looking into providing local caching for all our SDKs btw and would love to learn more about what your requirements are for remote configuration as it's also on our radar! Feel free to send me an email at: mark (at) flipt.io.