Last updated: September 2026.
These terms cover your use of the Hairline app. By installing or using Hairline you agree to them. If you do not agree, please do not use the app.
Hairline is a self-tracking tool. It gives you an estimated Norwood stage from your own answers and lets you keep aligned progress photos over time. It is not medical advice, not a diagnosis, and not a substitute for a doctor. Talk to a dermatologist about any treatment decision.
The Hairline Check, all photo angles, unlimited progress photos, and routine tracking are free and always will be. There is no account and no sign-up.
Full Access is optional. It adds the side-by-side before and after comparison, the shareable progress card, and the dermatologist-ready PDF export. Nothing that is free today is moved behind it.
Two ways to get Full Access:
Prices are shown in your own currency on the purchase screen before you buy, because they vary by country and change with local taxes.
The monthly subscription renews automatically at the end of each month unless you turn off auto-renewal at least 24 hours before the term ends. Your account is charged for renewal within 24 hours of the end of the current term.
You can cancel at any time:
Cancelling stops the next payment. You keep Full Access until the end of the month you have already paid for. Deleting the app does not cancel a subscription.
Purchases are made through Apple or Google, not through us, so refunds are handled by them under their own policies. For Apple, use reportaproblem.apple.com. For Google, use the Play Store order history.
Your photos, Check answers, and routine are stored only on your device. See the Privacy Policy for the full detail.
Please do not try to break, decompile, or resell the app, and do not use it to store photos of anyone who has not agreed to it.
Hairline is provided as it is. The estimated stage is a guide produced from your own answers and can be wrong. To the extent the law allows, we are not liable for any loss arising from your use of the app or from any decision you make based on it.
We may update these terms. If a change is significant we will note it in the app release notes. The date at the top always shows the current version.
For purchases made on the App Store, Apple's standard licence terms also apply: Apple Standard EULA.
Questions: trendtweekers00@gmail.com.
Hairline is a tracking tool, not medical advice or a diagnosis.