Simple analytics for mobile apps.

Most mobile analytics tools give you more features. True. But they also ask you to trust closed code and opaque infrastructure. Fantasma takes a narrower approach: it's open source, install-scoped, and built around the few reports most people actually look at.

The SDK does not track users and does not let you attach arbitrary user attributes to a session. Each install gets a random identifier.

The default metadata is limited to four things most teams care about: platform, OS version, app version, and locale. That is enough to understand how an app is doing without collecting more than you need. It is also not possible to link activity across devices and treat it as a single user.