Last updated 30 July 2026
These terms cover your use of Not Today, an iOS app made by Arkadii Grebennikov, an independent developer based in Valencia, Spain. Installing or using the app means you accept them.
Not Today lets you log daily habits and shows you an estimate of how much time you gained or lost, based on published population-level research about those habits.
This is not medical advice. The numbers are illustrative estimates, not a clinical assessment, not a diagnosis, and not a prediction of your lifespan. They do not account for your medical history, genetics or conditions. Do not use the app to make medical or financial decisions. If you have questions about your health, talk to a qualified doctor.
Logging habits, viewing your statistics and using the widget all work without an account. An account, created through Sign in with Apple, is only needed for shared challenges with other people. You are responsible for what happens under your account, and you can delete it at any time from Profile.
Not Today is free to use. Not Today Plus is an optional auto-renewable subscription that unlocks AI-powered logging, Siri input and unlimited challenges.
Plus includes turning a plain sentence into structured entries. That text is sent to OpenAI for processing, as described in the Privacy Policy. AI output can be wrong: it may misread quantities or miss things entirely. Always check what it logged, and correct it if needed.
What you log stays yours. We claim no ownership of it. The app itself, its design and its code remain ours.
We may update, change or discontinue features. We will avoid removing something you are paying for without notice, and if a paid feature goes away for good, you may cancel and Apple's refund policy applies.
The app is provided "as is", without warranty that it will be error-free or uninterrupted. To the extent the law allows, we are not liable for indirect or consequential damage, or for decisions you make based on the estimates the app shows. Nothing here limits liability that cannot legally be limited, including for death, personal injury or fraud. If you are a consumer, your mandatory statutory rights are unaffected.
You can stop at any time by deleting your account and removing the app. We may suspend access if these terms are seriously or repeatedly broken.
These terms are governed by Spanish law. If you are a consumer in the EU, you keep the protection of the mandatory rules of your own country of residence, and you may bring proceedings there.
If these terms change in a way that matters, we will update the date at the top and tell you in the app.
Questions about these terms: support@nottodayapp.me.