Privacy Policy for Strength Journeys

Last Updated: 26 March 2026

Welcome to Strength Journeys, a free open-source web application designed to provide analysis and visualization of your barbell lifting history. This Privacy Policy outlines how we handle your data in relation to your use of our app, particularly concerning the Google Sheets integration via the drive.file scope.

Data Processing and Storage:

Strength Journeys is designed to minimise server-side data storage. Your lifting data is processed within your browser and is never stored on our servers. When you use features that write to your Google Sheet (such as logging sessions or importing data), that data passes through our server to reach the Google Sheets API but is not retained. Limited operational data may be retained to support your experience, as described below.

Google Sheets Integration:

• Scope: Our app uses the drive.file scope to access Google Sheets. This permission allows Strength Journeys to read and write to Google Sheets files in your Google Drive that you explicitly open or create via Strength Journeys.
• Data Access: During each login Strength Journeys will read your selected Google Sheet for the purpose of analyzing and visualizing your barbell lifting history. No additional files or folders are accessed. At any time you can disconnect your current sheet from the sheet-switching flow. This clears the current Google Sheet identifier from your browser and removes the app's current linkage hint on our side, so Strength Journeys will no longer keep using that sheet as your active data source.
• Data Writing: Strength Journeys may write to your Google Sheet when you log a lifting session, import data from a CSV file, or create a new sheet during onboarding. All writes go directly to your own Google Sheet via the Google Sheets API. No copy of this data is retained on our servers.
• Data Usage: The data from your Google Sheet is used solely within your browser memory for the duration of the session to show lifting visualization charts and other fitness statistical analytics. Your lifting data is not stored on our servers.
• Google API Services User Data Policy Compliance: Strength Journeys use and transfer to any other app of information received from Google APIs will adhere to Google API Services User Data Policy, including the Limited Use requirements.

User Consent:

By using Strength Journeys, you consent to the data practices described in this Privacy Policy. You also acknowledge and consent to the limited use of your Google Sheets data as specified.

CSV Import (Unauthenticated):

Visitors who are not signed in may import a CSV file to explore the app in read-only mode. In this case the file is parsed entirely in your browser and held in temporary session storage. No data is sent to our servers. The data is discarded when you close the browser tab.

AI Lifting Assistant Page:

The user can opt-in to have certain lifting metadata and personal bio data sent to an AI chat API. No user data remains stored on our server. This feature is turned off by default. For more information go to: AI Lifting Assistant. The other feature pages do not use AI.

Onboarding Support:

To help new users get set up, the developer may receive a private notification when an account is created or a Google Sheet is connected. This may include your name and email address, used solely to offer personal assistance if needed. This information is not shared with third parties for marketing or any other purpose.

Changes to This Privacy Policy:

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page. You are advised to review this Privacy Policy periodically for any changes.

Contact Us:

If you have any questions about this Privacy Policy, please contact us at info@strengthjourneys.xyz