Last updated: 2026-04-25
By downloading, installing, or using the n=1 iOS app (“the App”), you agree to these Terms of Service. The App is published by Gennadii Tsypenko (“we”, “us”). If you don’t agree, don’t use the App.
n=1 is intended to help you structure personal experiments on your own health and lifestyle. It does not diagnose, treat, cure, prevent, or mitigate any disease. It does not replace consultation with a qualified healthcare provider.
You are solely responsible for any decisions you make based on the App. Before starting supplements, fasting, intense exercise, or any meaningful change to your health routine — especially if you take medication or have an underlying condition — talk to a clinician.
If a protocol makes you feel worse, stop. Your judgment matters more than a chart.
Results displayed in the App reflect correlations within your own data over the protocol period. n=1 self-experiments are unblinded, uncontrolled, and subject to confounders, placebo effects, and natural variation (regression to the mean). Treat any change you see as a signal worth investigating — not as proof that the intervention caused the change.
We grant you a personal, non-transferable, non-exclusive license to use the App on Apple devices you own or control, in accordance with the Apple App Store Terms of Service.
You agree not to:
The App is provided “as is” and “as available,” without any warranty of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that the App will be uninterrupted, error-free, accurate, or that any data shown is correct or complete.
To the maximum extent permitted by applicable law, neither we nor our suppliers will be liable for any indirect, incidental, special, consequential, or punitive damages — including loss of profits, data, or use — arising from or related to your use of the App, even if we have been advised of the possibility of such damages.
In no event will our aggregate liability arising from or related to the App exceed the amount you have paid for the App in the 12 months preceding the claim, or, if you have not paid anything for the App, the equivalent of US $20.
Some jurisdictions don’t allow exclusion of certain warranties or limitation of certain liabilities. In those jurisdictions, the limitations above apply only to the maximum extent permitted by law.
You acknowledge that these Terms are between you and us, not with Apple. Apple is not responsible for the App or its content. Apple has no obligation to provide maintenance or support for the App. In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any). Apple is a third-party beneficiary of these Terms and may enforce them against you.
We may update these Terms from time to time. Material changes will be reflected in the “Last updated” date at the top. Continued use of the App after a change constitutes acceptance of the updated Terms.
These Terms are governed by the laws of the Federal Republic of Germany, without regard to conflict-of-laws rules. Disputes will be resolved in the competent courts of Germany. Mandatory consumer protection rights under your local law (including any applicable EU consumer rights) are not affected by this clause.
Questions: gennadii8+n1@gmail.com