Privacy Policy
Last updated · 17 April 2026
Chronos Egg Timer ("the app", "we", "us") is published by Tuğba Dalkanat. This document explains exactly what data the app collects, why, and the controls you have over it. We built Chronos to be a small, single-purpose tool — so this policy is short by design.
1. Data we collect
Chronos does not require an account, does not ask for your name, email, phone number, photos, contacts, or location. The data we do touch falls into three buckets described below.
On-device only
All cook history, custom presets, altitude and water-temperature calibration, and preference toggles are stored in your device's private app storage (and, for the iOS home-screen widget, in a shared app-group container accessible only to Chronos and its widget). This data never leaves your device.
Diagnostic
If you leave crash reporting enabled in Settings, technical information about unexpected errors is sent to our diagnostics provider. See the Diagnostics section.
Advertising
Chronos serves occasional ads via Google AdMob. Information relevant to ads (device advertising identifier, coarse device information) may be accessed by AdMob. See the Advertising section and the Google Ads policy.
2. Advertising & tracking
Chronos shows occasional full-screen ads (app-open and interstitial) served by Google AdMob. You will see an ad at most once per hour across the whole app.
- We do not sell or share your personal information with advertisers beyond what AdMob requires to deliver ads.
- We do not build profiles, run cross-app tracking, or fingerprint your device.
- AdMob's own data handling is described in Google's policy linked above — please review it for details on regional regulations (GDPR, CCPA).
3. Crash & performance diagnostics
When enabled (on by default, flippable in Settings), Chronos sends anonymised crash and performance reports to Sentry. The reports include stack traces, the Flutter and OS version, and non-identifying device model strings. They do not include your recipes, presets, cook history, or any personally identifying information.
You can disable diagnostics at any time from Settings → Privacy → Crash Reporting.
4. On-device storage
The app uses standard system APIs for persistence:
UserDefaults on iOS and SharedPreferences
on Android, plus a shared app-group container used by the
home-screen widget. All of this data is removed automatically when
you uninstall the app.
5. Sharing with third parties
Chronos itself does not sell, rent, or share your data. The only third-party services the app communicates with are:
- Google AdMob — ad delivery only.
- Sentry — crash & performance diagnostics (opt-out).
- Apple / Google platform services — the standard iOS notification, widget, and app-store systems used to run the app.
6. Children
Chronos is a general-audience utility and is not directed at children under 13. We do not knowingly collect data from children. If you are a parent and believe your child has provided any data, please contact us and we will delete it.
7. Your rights
Because Chronos keeps almost all of its data on your device, most data-subject rights are enforced automatically: deleting the app removes your data. For data held outside your device (diagnostic reports, ad identifiers) you can:
- Toggle off Crash Reporting and Personalised Ads in Settings.
- Reset your Apple advertising identifier in Settings → Privacy & Security → Tracking.
- Contact us to request deletion of any retained diagnostic data associated with a specific crash report.
8. Changes to this policy
We may revise this policy as the app evolves. When we do, the "Last updated" date at the top will change. Material changes will be surfaced in the app itself.
9. Contact
Questions, data requests, or concerns can be directed to:
Tuğba Dalkanat
hello@chronoseggtimer.app