Privacy policy

Effective date: 29 October 2026.

Kesia is a personal expense tracker by Anton Lyapov (the developer). This policy explains what happens to your data. In short: nothing is collected.

No data collected

The developer collects no data. There are no analytics, no advertising, no crash reporting, no tracking and no accounts. The developer runs no server that receives your data.

Where your data lives

Your accounts, transactions, budgets and settings are stored in a database on your device. If you turn on iCloud sync (iOS only, off by default), the data is also stored in your own private iCloud container, under your Apple account. The developer cannot read it.

Network requests

Kesia makes two kinds of network requests only:

• Exchange rates from the Frankfurter API (European Central Bank rates). The request contains only currency codes and a date. It contains no amounts, no identifiers and no personal data.
• Optional iCloud sync, handled by Apple, only when you enable it.

Face ID and biometrics

If you enable the app lock, Face ID or other biometrics are checked on your device by the system. Kesia never receives biometric data.

Backups and CSV files

Backup and CSV files are created on your device. They leave it only where you choose to save or share them.

Children

Kesia collects no personal data from anyone, including children.

Changes to this policy

If the policy changes, the new version is published on this page with a new effective date.

Contact

Anton Lyapov, support@kesia.lyapov.com. The e-mail address is the only personal data the developer sees, and only if you write to it.