Nimora Support
About Nimora
Nimora turns your iPhone camera into a contactless wellness check. Look at the screen for 30 seconds and Nimora reads subtle colour changes in your face (remote photoplethysmography, rPPG) to estimate heart rate, heart-rate variability (HRV) and a stress score. All video analysis happens on your device; nothing is uploaded. Nimora is a general wellness app and not a medical device — see the Health Disclaimer.
Contact
Questions, feedback or a problem with a purchase? Email xulingchang@gmail.com. We usually reply within a few business days. Please include your iPhone model and iOS version if you are reporting a measurement issue.
Frequently asked questions
Why does Nimora need camera access?
The front camera captures the tiny colour changes in your skin caused by blood flow. Nimora analyses that signal in real time with an on-device Core ML model. Frames are processed in memory and discarded — no video or photo is ever saved or sent anywhere.
How do I get a reliable reading?
- Sit still in a well-lit room; daylight or a lamp in front of you works best. Avoid flickering light and strong backlight.
- Hold the phone at arm's length (40–60 cm) and keep your whole face inside the frame.
- Don't talk or move your head during the measurement.
- Watch the signal-quality indicator; if it stays low, retry with better lighting.
My reading looks wrong.
rPPG estimates can drift with lighting, motion, heavy makeup, face coverings or unusual heart rhythms. Readings marked low-confidence should be ignored. If a reading concerns you, compare with a clinical device and consult a doctor — never rely on Nimora for medical decisions.
Where is my data stored?
Measurement results are stored on your device. If you are signed in to iCloud and iCloud is enabled for Nimora, your history syncs to your private iCloud database (CloudKit) so it follows you across devices; only your Apple ID can read it. We run no servers and never see your data. Details in the Privacy Policy.
How do I delete my data?
Delete individual entries from the History screen, or delete the app to remove all local data. To remove iCloud copies: Settings › [your name] › iCloud › Manage Account Storage › Nimora.
What does Nimora Premium include?
Unlimited measurements per day (Free: 10), full history (Free: last 7 days), Stress Score, detailed HRV metrics, AI Health Insight, weekly/monthly reports, PDF export, 120-second / custom-length / live monitoring, and front/back camera switch. Premium is a monthly auto-renewing subscription billed through your Apple ID. See the Terms of Use.
How do I cancel or manage my subscription?
Open Settings › [your name] › Subscriptions on your iPhone and select Nimora Premium. Cancelling stops the next renewal; you keep Premium until the end of the current period. Deleting the app does not cancel a subscription.
I paid but Premium isn't unlocked / I reinstalled the app.
Open the Premium screen and tap Restore Purchases while signed in with the same Apple ID you used to buy. If it still fails, email us with the App Store receipt date.
How do I request a refund?
Purchases are handled by Apple. Request a refund at reportaproblem.apple.com.
Which devices are supported?
iPhone and iPad running iOS / iPadOS 18.5 or later with a front camera. Newer devices with a faster Neural Engine use a higher-accuracy model automatically.