NutriCycle

Privacy Policy

Your data stays on your phone.

Last updated 14 July 2026 · NutriCycle for iPhone & Android

At a glance

  • Everything you log — cycle, weight, food, fasting — stays only on your device and in Apple Health / Health Connect. It's never uploaded to us.
  • No account and no NutriCycle server. We never sell or share your health data with anyone.
  • NutriCycle is for adults (18+) and is not medical advice.

1Important — this is not medical advice

NutriCycle is a personal tracking tool provided for general informational purposes only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Cycle-phase predictions, ovulation estimates, nutrition targets, fasting timers, and every other output are estimates that may be inaccurate — do not rely on them for contraception, fertility planning, or any medical or health decision.

You are solely responsible for how you use the app. Talk to a qualified health professional before you start, change, or rely on any diet, fasting, exercise, or cycle-tracking practice, and for any question about a medical condition, medication, or symptom. Never disregard or delay professional medical advice because of something you saw in this app. If you think you may have a medical emergency, contact a health professional or emergency services immediately.

2What the app stores, and where

The information you enter and view lives on your device, in the app's local storage and in your platform's health store (Apple Health on iPhone, Health Connect on Android). None of it is sent to us or to any NutriCycle server, because there isn't one.

InformationWhere it's stored
Cycle & period datesOn device · Apple Health / Health Connect
WeightOn device · Apple Health / Health Connect
Energy / calories burnedRead from Apple Health / Health Connect
HydrationApple Health / Health Connect
Food & fasting logsOn device
Calendar events & tasksYour device calendar
App settings & preferencesOn device

3Health data

With your permission, NutriCycle reads and writes health data through Apple Health (iPhone) or Health Connect (Android). You grant these permissions yourself and can review or revoke them at any time in your device settings.

  • Reads: menstruation, weight, hydration, and active & total calories burned — to show your cycle phases, chart your weight trend, and estimate your daily energy for nutrition targets.
  • Writes: weight, hydration, and period/flow, when you log them — so your entries are available to your other health apps.

This data is used only on your device to power these features. It is never transmitted off the device, never used for advertising, and never sold or shared. Our use follows the platform requirements for health apps, and only appends your own entries — it never deletes data written by other apps.

4When the app uses the internet

NutriCycle makes network requests only in the cases below, and never sends your health data. All requests use an encrypted (HTTPS) connection.

  • Food lookup: when you search a food by name or scan a barcode, the search text or barcode number is sent to Open Food Facts to retrieve nutrition facts.
  • AI food search: if you use the optional AI lookup, only the food name you typed is sent to the Perplexity API to estimate nutrition — never your health data. On Android this request passes through a Cloudflare Worker proxy; on iPhone it is sent to Perplexity directly.
  • Feedback: if you send in-app feedback, the subject and message you write are used to create a GitHub issue so we can respond (on Android through a Cloudflare Worker; on iPhone directly to GitHub).
  • Analytics: the app uses TelemetryDeck, a privacy-first, no-PII analytics service. It records anonymous, aggregate events (e.g. app opened, which tab was viewed, a feature was used). It does not collect your name, email, health data, or any content you enter.

5Camera

The camera is used for one thing: reading a product barcode live while you hold the app over it. Frames are analysed on your device to find the barcode and are never saved, stored, or transmitted. You can deny camera access and still use the rest of the app.

6Notifications

If you turn them on, the app schedules a local notification to let you know when your fasting goal is reached. These are generated on your device — nothing about them leaves it.

7Backup & sync

Your data is stored locally on your device. If you enable your platform's backup, the app's data is backed up to your own cloud account so you can restore it on a new device — iCloud on iPhone, or your Google account (Android Backup) on Android. On iPhone, some settings and cycle data also sync across your own Apple devices via iCloud. In every case this backup and sync is handled by Apple or Google under your own account and your control — not by NutriCycle.

8What we don't do

  • No user accounts or logins.
  • No NutriCycle-operated server stores your health or personal information.
  • We never sell, rent, or share your personal or health information.

9Adults only

NutriCycle is intended for adults aged 18 and over. It is not directed at, marketed to, or intended for use by children or minors, and we do not knowingly collect data from anyone under 18. If you are not an adult, please do not use the app.

10Your controls

You control all permissions (Apple Health / Health Connect, Calendar, Camera, Notifications) in your device settings and can revoke them at any time. You can delete your data by deleting the app or clearing its data, and you can manage backups in your iCloud or Google account settings.

11Changes to this policy

If this policy changes, we'll update the date at the top of this page and, where the change is significant, note it in the app. Continuing to use the app after an update means you accept the revised policy.


Contact

Questions about your privacy? Email the NutriCycle team.

NutriCycle · On-device wellness · No account required