Terms of Service

Last updated: March 2026

1. Acceptance

By using Strength Lab, you agree to these terms. If you do not agree, please do not use this application.

2. Description

Strength Lab is a free, client-side web application that provides estimated one-rep max calculations, training program generation, and workout logging. All calculations are estimates for reference only.

3. Disclaimer

All results are estimates and should not be used as medical or professional training advice. Actual one-rep max varies with technique, fatigue, nutrition, and recovery. Always use proper form and a spotter for heavy lifts. Consult a qualified coach or physician before starting any training program.

4. No Warranty

This application is provided "as is" without warranty of any kind, express or implied. We are not liable for any injury, loss, or damage arising from the use of this application.

5. Data

All user data is stored locally in your browser. We do not store, process, or have access to your training data. You are solely responsible for backing up your data.

6. Changes

We reserve the right to modify these terms at any time. Continued use after changes constitutes acceptance.