App: Chronos · Last updated: 28 July 2026
Data controller: Christos Dimakis, Peristeri, Attica, Greece.
Contact: chronos@dimakis.app
The app has no backend. You do not create an account, you do not provide an email address, and there is no analytics, crash reporting or advertising SDK embedded. We do not track you across apps or websites and we do not use the IDFA.
The following is stored locally and never leaves your device, unless you enable iCloud sync (see section 5):
| Category | What it is | Why |
|---|---|---|
| Calendar and Reminders | Your own events and tasks, via Apple's EventKit | So the app can display and edit them |
| Contacts | Names and birth dates | Birthdays and name days in the calendar |
| Medication | Names, dosages, times, intake history | Reminders and adherence tracking |
| Tracking | Car, home maintenance, medical exams, subscriptions, loans | Renewal and expiry reminders |
| Countdown | Titles, dates, photos you pick | Countdown cards |
| Settings | Display preferences, favourite weather locations, time zones | App behaviour |
Every permission can be revoked at any time in iOS Settings.
If you enable "iCloud Sync", your Countdown and Tracking data, along with your settings, are stored in the private CloudKit database of your own Apple account. That is between you and Apple. We have neither access nor visibility. Apple's Privacy Policy applies.
The app contacts the services below. None of them receives your name, email, device identifier, calendar content, contacts or medication data.
| Service | What is sent | Purpose |
|---|---|---|
| Open-Meteo, MET Norway, Apple WeatherKit, weather.gov | Geographic coordinates (rounded) | Weather forecast |
| Meteoalarm | Coordinates | Severe weather warnings |
| Apple Maps / Nominatim (OpenStreetMap) | Coordinates | Turning coordinates into a place name |
| Windy | Coordinates | Embedded weather map |
| Greek Ministry of Health, regional health authorities, pharmacists' associations | Date and region | On-duty hospitals and pharmacies |
| Greek Wikipedia | The date you are viewing | "On this day" and the name-day calendar |
| GitHub (raw) | Nothing, a plain file download | Updated medicine list and source configuration |
Services that require it (MET Norway, Nominatim, Wikipedia) receive an application identifier together with our contact address, as their terms of use require.
One source only, the on-duty system of the 7th Health Region of Crete, is available solely over an unencrypted connection (HTTP). No personal data is sent to it, only a date.
For as long as you want. There is no automatic deletion. You can delete individual records, the whole history of one medication, or everything older than a number of years you choose, from within the app. Uninstalling removes local data. iCloud data is deleted from iOS Settings.
You have the right of access, rectification, erasure, restriction, portability and objection. Since we hold none of your data, these rights are exercised directly on your device and in your iCloud account. For anything else, write to us. You also have the right to lodge a complaint with your national supervisory authority.
The app is not directed at children under 13 and does not knowingly collect data from them. Since we collect no data at all, no such risk arises.
If anything material changes, the date at the top will be updated and it will be noted in the release notes. This policy is always available inside the app, under Help.