Getting started
Not yet. Birdo is in active development and coming to iPhone. The course-data pipeline, the deterministic caddie engine, the hybrid AI layer, and the scoring logic are built and tested; the app is being assembled around them. We aren't collecting sign-ups in the meantime.
Birdo targets iOS 26. The AI caddie uses Apple's on-device Foundation Models, which require an Apple Intelligence-capable device. On devices without it, Birdo falls back to its deterministic caddie engine — you still get a sound club recommendation, just without the written explanation.
A glanceable Apple Watch companion — yardages on the wrist — is on the roadmap for a later release. The first release focuses on iPhone.
On the course
Yes. Pull a course before you play and its geometry is cached on the phone. Yardages come from GPS, which needs no cellular connection, and the caddie runs entirely on-device — so Birdo keeps working through dead zones all the way to eighteen.
Yardages are great-circle distances computed from your GPS position to the mapped front, center, and back of the green. Accuracy depends on your device's GPS fix and the quality of the course mapping — both of which are generally excellent on open holes. Birdo shows distances to the green rather than promising sub-yard laser precision.
Birdo computes the plays-like distance and ranks club candidates from your own carry model — the reliable math. When Apple Intelligence is available, the on-device model picks among those candidates and explains why. The AI never invents a number; it only chooses from the engine's trusted options.
Birdo reads OpenStreetMap, so anyone can improve a course's mapping with an OSM editor such as FairwayMapper — and Birdo picks up the improvements automatically. A commercial-data option is reserved for courses the open map hasn't reached.
Scoring & groups
Gross, net, and Stableford, with handicap strokes allocated by each hole's stroke index. Birdo keeps a running total as you enter strokes, and round history is stored on the device.
Shared rounds sync through your own iCloud account between the people you invite — there's no Birdo server in the middle and no separate account to create. Only invited players see the card. See the Privacy Policy for specifics.
Privacy
As little as possible. The caddie runs on-device, there's no Birdo account, and your rounds aren't uploaded to us. Location is used on the device to compute yardages. Group rounds sync through your own iCloud. Full detail is in the Privacy Policy.

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