Privacy Policy

Kayzen app · Last updated: 26 August 2026

Kayzen collects no data. Nothing leaves your device, because nothing is ever asked of it.

1. Publisher

The Kayzen app is published by Askmethat. Contact: ateixeira@askmethat.fr.

2. Data we collect

None. Kayzen collects, transmits and shares no personal data. Concretely, the app:

requires no account and no sign-up;
never asks for your name, e-mail address or phone number;
uses no analytics and no usage statistics;
uses no automatic crash reporting;
shows no advertising and embeds no ad network;
embeds no third-party SDK that collects data;
never reads your contacts, location, files or calendar;
makes no network request: it runs entirely offline, including its typeface, which ships inside the app.

3. Data you create

The habits you add, their goal in minutes, and the days you practised them are stored only in the app's private storage, on your device. Android reserves that space for Kayzen: other apps cannot reach it.

None of it is sent to anyone — not to Askmethat, not to Google, not to any third party. We have no access to it and can neither read nor restore it.

4. Backup

Kayzen deliberately disables Android's automatic backup (allowBackup="false"). Your habits are therefore never copied to Google's servers, and are not transferred when you change phone.

This is a deliberate privacy choice, with a consequence you should know about: uninstalling the app, or changing device, erases your habits permanently.

5. Deleting your data

Since nothing leaves your device, deletion is entirely in your hands: uninstall the app, or clear its storage from Settings › Apps › Kayzen › Storage. Deletion is immediate and permanent; we hold no copy to delete on our side.

6. Your rights

The General Data Protection Regulation (GDPR) governs the processing of personal data. Kayzen carries out no processing: for your habit data there is no controller in the sense of the regulation, no recipient, no transfer and no retention period to declare, because that data never reaches us.

Your rights of access, rectification and erasure are therefore exercised directly in the app and on your device. For any question, write to ateixeira@askmethat.fr.

7. Children

Kayzen is not directed at children under 13 and knowingly collects no data about them — as it collects none at all, whatever the age of the person using it.

8. Changes

Should a future version change this behaviour — by adding backup or synchronisation, for instance — this policy will be updated before that version is published, and the date at the top of this page changed accordingly.

9. Governing law

This policy is governed by French law.