Fuel respects your privacy and collects as little information as possible. The Fuel iOS app operates entirely on your device and we do not operate centralized servers for the app. This page explains how we handle data on both our website and mobile app.
We do not use cookies or analytics on the website. The app stores your workout history and preferences on your device and does not upload this data to our servers or Apple iCloud (except for your backups).
The Fuel app is designed to run fully on your iOS device. We do not maintain centralized servers for the app, and we do not collect or store your app data on our systems.
This website is hosted on Vercel, which collects anonymized traffic data for analytics, speed insights, and logs. This data is processed for our legitimate interest in securing the site, keeping costs down, and preventing service abuse. No personally identifiable information is collected through these systems.
Some optional AI features may send minimal, task‑specific inputs (for example, short text prompts) to Google Cloud and OpenAI for temporary processing. We do not send your app data to Fuel‑operated servers. Our agreements with these providers prohibit your data from being used to train their models. Data is encrypted in transit and discarded after your results are returned.
For details, review the privacy policies from Google Cloud and OpenAI
All sign‑in and purchase flows are handled by Apple. We never receive your payment details or Apple ID, only confirmation of a successful transaction.
We do not sell or share your information with any third parties.
We work with the following third-party processors to provide our services:
These processors are bound by strict data protection agreements and only process data as necessary to provide their specific services.
Information saved in the app remains on your device until you delete it. Removing the app or clearing its storage permanently erases your data.
The website and app are not intended for children under 13. We do not knowingly collect information from minors.
We may update this policy as our services evolve. Major changes will be announced on the website, and the revision date will be updated here.
If you have questions about privacy at Fuel, use the contact page to ask a question.
Last updated: August 16, 2025
