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halfmarble // iOS apps

halfmarble on your iPhone.

One wellness app and two games. Everything runs on your device, none of it tracks you, and all of it is built to work with unsteady hands.

SteadyHeartBeat app icon

SteadyHeartBeatiPhone + AirPods Pro 3

Your heart rate, read aloud. SteadyHeartBeat speaks your live heart rate from AirPods Pro 3 — no watch, no chest strap, no glancing at a screen. Everything runs on your iPhone, and your data never leaves it.

Free public beta · on request App Store release to follow
See the app →
ViroFlick app icon

ViroFlickiPhone & iPad game

A casual flick-and-defend arcade type game. Read the pathogen swarming your patient, arm the one cell type that counters it, and flick a homing swarm to hold the line.

Open beta · TestFlight
See the game →
StringFusor app icon

StringFusoriPhone & iPad game

A casual color-matching puzzle game set in deep space. Steer falling strings of colored pieces, stack them, and build patterns that fuse and release their energy. No timers, no rush, unlimited undo.

Coming to the App Store · later this year
See the game →

All three are local-first: no accounts, no ads, no analytics, no third-party SDKs. What happens on your device stays on your device.