Effective September 26, 2026

The short version

Eos doesn’t collect any data about you. Your notes are stored on your device and in your own iCloud account, and I (Mark Huot, the developer) have no way to read them.

Where your notes are kept

Everything you write in Eos is saved on your device. If you’re signed in to iCloud, Eos also keeps a copy in the private CloudKit database that belongs to your Apple ID, which is how your notes reach your other devices. Apple runs that database, and only your Apple ID can read it. As the developer, I can see the shape of the database (the names of its fields) but none of the records in it.

If you aren’t signed in to iCloud, Eos works the same way and your notes never leave the device.

The home screen widget reads the same notes. It uses a copy the app saves in a shared folder on your device, and it can also read your private iCloud database directly so a note written on another device shows up without opening the app first. The widget only reads. It never writes anything back.

Settings

Your choice of theme, and a few small flags such as whether the example notes have already been added, are saved on the device only. If you use the Custom theme, its three colors are saved alongside your notes in your private iCloud database so your other devices can use them.

Calendar and weather

Today and Tomorrow can show the day’s events and the hourly forecast along the bottom of the card. Eos asks for permission the first time a card needs each one, and you can turn either off in Settings under Integrations.

Your calendar events are read on your device, shown on the card and nothing more. Eos doesn’t save them, sync them or send them anywhere.

To show the forecast, Eos asks Apple Weather (WeatherKit) for the weather where you are, which means your device’s location goes to Apple with that request. Eos keeps the location in memory only while it fetches the forecast, and never saves it or sends it to me.

What Eos doesn’t do

  • There’s no Eos account and nothing to sign up for.
  • Eos doesn’t include any analytics, advertising or tracking.
  • Eos doesn’t include any third-party code or SDKs. It’s built only on Apple’s own frameworks.
  • Eos doesn’t talk to any server of mine, or to anyone else’s. The only network connections it makes are to Apple: iCloud for your own account, and Apple Weather for the forecast.
  • Eos doesn’t send your notes to any AI service.

Sharing

When you tap the share button on a note, the text goes wherever you send it through the system share sheet. Eos doesn’t keep a record of what you shared or where it went.

Crash reports

If you’ve chosen to share analytics with app developers in your device’s settings (Settings › Privacy & Security › Analytics & Improvements), Apple may pass me anonymous crash reports from Eos. That’s Apple’s program, and you can turn it off at any time. Eos doesn’t add anything to those reports.

Deleting your notes

Clearing everything on today’s page deletes that day’s note. Deleting the app removes the notes stored on that device. To remove the copy in iCloud as well, follow the steps under How do I delete everything? on the support page.

Children

Eos doesn’t collect information from anyone, including children.

Changes

If this policy changes, the new version will be posted on this page with a new effective date at the top.

Questions

Email me at mark@markhuot.com, or open an issue on GitHub.