EQS Air

Privacy policy

EQS Air for iPhone, iPad and Mac · effective 25 October 2026

In short: EQS Air collects nothing. There is no account, no analytics, no advertising and no tracking. The app makes no network connection. Everything you enter stays on your device.

What the app stores, and where

The points, mixtures and processes you enter, your unit system and your site elevation are kept in the app's own storage on your device, so they are there the next time you open it. They are not sent anywhere, not to us and not to anyone else. Deleting the app deletes them.

If your device backs itself up (iCloud Backup, or a backup of your Mac), that backup may include the app's storage, as it does for any app. That is between you and Apple; we never see it.

What we receive

Nothing from the app. Apple tells us, as it tells every developer, how many copies were downloaded and bought, in totals that do not identify anyone. If you choose to share crash reports with developers in your device's settings, Apple passes them on to us without your name.

If you write to us, we receive your e-mail and use it only to answer you.

Children

EQS Air collects no information from anyone, children included.

Changes

If this ever changes, this page changes first, with a new date, before any version of the app that behaves differently.

Contact

Stefan Butucea, the developer of EQS Air: [email protected]

Support · EQS, the equation solver