Terms of Use — Is It Working?
Last updated: March 25, 2026
By downloading or using Is It Working? ("the App"), you agree to these Terms of Use. If you do not agree, do not use the App.
1. Description of Service
Is It Working? is a personal experiment tracker that allows you to log changes in your health, skincare, diet, sleep, fitness, and lifestyle routines, rate daily outcomes, and view before/after comparisons. The App is a self-tracking tool and does not provide medical advice, diagnoses, or treatment recommendations.
2. Medical Disclaimer
The App is for personal informational tracking purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition. Never disregard professional medical advice or delay seeking it because of information provided by the App. AI-generated insights are based on your self-reported data and should not be interpreted as medical guidance.
3. User Accounts & Data
The App does not require account creation. All data is stored locally on your device. You are solely responsible for maintaining the security of your device and your data. We are not responsible for any data loss resulting from device damage, loss, or software issues.
4. Subscriptions & In-App Purchases
The App offers a free tier (one active experiment) and a Pro subscription ($2.99/month or $19.99/year) for unlimited experiments and AI-powered analysis. Subscriptions are billed through your Apple ID account and renew automatically unless cancelled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription in your device's Settings > Apple ID > Subscriptions. No refunds are provided for partial billing periods.
5. Acceptable Use
You agree not to: (a) use the App for any unlawful purpose; (b) attempt to reverse engineer, decompile, or extract the source code of the App; (c) use the App to generate content that is harmful, misleading, or violates the rights of others; (d) share or redistribute AI-generated templates or analysis in a way that misrepresents them as professional medical advice.
6. Intellectual Property
The App, including its design, code, content, features, and branding, is the intellectual property of Mehdev Inc. You may not copy, modify, distribute, or create derivative works based on the App without prior written consent.
7. Third-Party Services
The App uses DeepSeek for AI template generation and analysis, and RevenueCat for subscription management. Your use of these services is subject to their respective terms and privacy policies. We are not responsible for the availability or performance of third-party services.
8. Limitation of Liability
To the maximum extent permitted by law, Mehdev Inc. shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the App. The App is provided "as is" without warranties of any kind, either express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement.
9. Termination
We reserve the right to suspend or terminate access to the App at any time, with or without notice, for conduct that we believe violates these Terms or is harmful to other users or the App.
10. Governing Law
These Terms shall be governed by and construed in accordance with the laws of the Federal Republic of Germany. Any disputes arising from these Terms or your use of the App shall be subject to the exclusive jurisdiction of the courts of Göttingen, Germany.
11. Changes to These Terms
We may revise these Terms at any time. Continued use of the App after changes constitutes acceptance of the revised Terms. Material changes will be communicated through the App.
12. Contact
For questions about these Terms, contact us at contactus@mehdev.app
