Privacy Policy

뇌훈련 (com.chigi.brain) · Last updated 2026-08-16
In short
This app has no accounts and no sign-in. Almost everything stays on the phone. The only things that leave the device are the weekly report sent to a family member and the nickname and score used for the daily ranking. In rock-paper-scissors, camera images are never stored or transmitted. The bonus video that appears every tenth session is different: it is something you record deliberately for your family, so it is stored.

What we collect

We do not collect your name, date of birth, phone number, address, location or contacts.

Where it is stored

Sharing

Apart from the report sent to the family member's email address, we do not share or sell data to anyone. We use Cloudflare (storage, delivery and email) and Google (ads) to operate the service.

Advertising

Google AdMob banners appear at the bottom of the home and completion screens. Google may use advertising identifiers; see Google's advertising policies. No ads are shown while you are doing the exercises.

Deleting your data

Uninstalling the app deletes every record held on the device. Recordings on the server disappear by themselves after 7 days; to remove them sooner, contact us at the address below.

Please note
The recording links have no login, but they bind to the first device that presses "listen". After that they open only from that device and browser. If you need to listen on another device, move the link there before opening it.

Children

This app is not directed to children.

Medical notice

This app is not a medical device and does not provide a diagnosis. It is not a substitute for dementia screening. If you notice changes that concern you, please consult a healthcare professional.

Contact

support@chigi.uk