Nothing about you leaves the phone.

RookFlow runs entirely on your device. The map, the positions, the moves: all in the app bundle.

It makes one network request: an anonymous GET to api.github.com for the GrappleMap repository’s star and fork counts, shown on the credit screen. Nothing about you is sent. If the request fails you see a dash. In the browser version this request is not made at all.

There is no account, no analytics, no advertising, no crash reporting, and nothing is stored anywhere but your device. Uninstall the app and nothing of it remains anywhere.

---

Questions: ghostlabsoftware@gmail.com. GhostLabs, Stuttgart, Germany.
Last updated: 24 August 2026.