WattBird Privacy Policy
Last updated: 16 July 2026
WattBird ("the App") is an individual-run project based in Switzerland. This policy explains what data the App handles, why, and how you can control it.
The short version: WattBird has no user accounts and no backend server that stores your data. Your ride data lives entirely on your device.
Data collected and how it's used
Trainer & workout data
WattBird connects to your Bluetooth smart trainer (any device supporting the Fitness Machine Service standard) to read live metrics — power, cadence, speed, heart rate, resistance — and to send target-power commands during structured workouts. This connection is local, directly between your iPhone and your trainer; nothing is sent to us.
Completed rides (workout name, duration, average/peak power, calories, estimated distance, and timestamp) are saved as your ride history, stored locally on your device using standard iOS app storage. We do not have access to this data and it is never transmitted to any server we operate.
Bluetooth permission
The App requests Bluetooth permission solely to discover and connect to your own trainer hardware. It is never used for location tracking, advertising, or any purpose unrelated to connecting to your trainer.
What we don't do
- No account creation, no name/email/phone number collected inside the App.
- No analytics SDKs, no advertising identifiers, no third-party trackers.
- We do not sell your data, ever.
- We do not share your data with anyone.
Data retention & deletion
Your ride history and settings stay on your device until you delete them — either by deleting individual rides in the App, or by deleting the App itself, which removes all locally stored data immediately. Because we don't operate a backend database of user data, there is nothing further for us to delete on our end.
Your rights
Since WattBird doesn't store your personal data on any server we control, most data protection rights (access, correction, deletion) are exercised directly on your device — everything is already in your hands. If you have questions about your data or want something clarified, contact us at info@splitbaguette.com and we'll respond.
Children's privacy
WattBird is not directed at children, and we do not knowingly collect data from anyone under 16. If you believe a child has used the App in a way that concerns you, contact us and we'll look into it.
Changes to this policy
If this policy changes, we'll update the date at the top of this page. Continued use of the App after a change means you accept the update.
Contact
Questions about this policy or your data: info@splitbaguette.com