Last updated: January 26, 2026
b2fit respects your privacy. This Privacy Policy explains what data is (and is not) collected, how it is used, and how it is handled when you use the b2fit mobile application.
By using b2fit, you agree to the practices described in this Privacy Policy.
b2fit is designed as a privacy-first, AI-powered fitness application. Our goal is to provide useful tools and AI assistance without collecting or storing your personal health data on our servers.
Most of your data stays locally on your device and remains under your control.
b2fit does NOT collect, store, or sell:
We do not operate our own backend servers to store user data.
All fitness-related data is stored locally on your device.
This includes, but is not limited to:
You are responsible for managing your data using the app’s backup and restore features.
b2fit allows you to connect your own API key (Bring Your Own Key - BYOK) for third-party AI services.
Currently supported providers may include:
When you use AI features, your messages, images, or prompts are sent directly from your device to the selected AI provider. b2fit does not intercept, store, or log this data.
Data handling is governed by the privacy policy and terms of the selected AI provider. We strongly encourage you to review those policies before using AI features.
b2fit is not responsible for how third-party AI providers process your data.
b2fit may use third-party analytics tools such as Firebase Analytics to understand app usage and improve stability and performance.
This data may include:
This data is anonymized or aggregated and does not include personal health data. Analytics collection follows Google Play and Firebase policies.
b2fit does not show ads and does not use advertising identifiers for ad targeting.
We do not sell, rent, or trade your personal data.
Data may only be shared with third-party AI providers you explicitly configure or with analytics providers for anonymized usage and crash reporting.
We take reasonable measures to protect the app and its features. Because most data is stored locally, protecting your device is an important part of your data security.
b2fit is not intended for use by children without parental consent, where required by law. We do not knowingly collect data from children.
Depending on your location, you may have rights related to privacy and data protection. Because b2fit does not store your personal data on its servers, most data management can be done directly within the app.
This Privacy Policy may be updated from time to time. Any changes will be reflected by updating the date at the top of this document.
If you have questions or concerns about this Privacy Policy, you can contact us at: