Linden reads your resting heart rate from a 30-second face scan, processed entirely on your phone. If you need a hand, this page covers the most common questions — and how to reach a person.
Email relorbany@hotmail.com and we will get back to you. Including your device model and iOS version helps us help you faster.
Yes. The video of your face is processed on your phone and then deleted — it never leaves your device. Linden has no account system, and we never sell your data. Full details are in our privacy policy.
Linden Plus is an optional subscription billed through your Apple Account. To view, change, or cancel it, open the Settings app on your iPhone, tap your name, then Subscriptions, and choose Linden. Cancelling keeps everything you have already recorded — it only pauses the Plus features.
Everything Linden stores lives on your phone. To remove all of it, delete the app — iOS clears the local storage when you uninstall.
Linden is a general wellness app, not a medical device. It does not diagnose, treat, cure, or prevent any condition, and it is not a substitute for advice from a clinician. If you feel unwell, talk to a medical professional.
Support for the Linden iOS app. Published by the Linden Team.