Privacy Policy

Japanese Walking (Marche japonaise) app — last updated: 31 October 2026

In short

Japanese Walking is an interval walking timer. Your workout history and settings stay on your phone: they are never sent to the publisher nor stored on a server. The app creates no account, measures no audience and collects no usage statistics.

One exception, detailed below: the banner ad, which involves an exchange with Google.

Data controller

Olivier Popiers — contact: oliviertheandroidmaker@gmail.com

Data processed

Data	Purpose	Legal basis	Where it goes
Workout history: date, duration, completed or interrupted	Show your history and progress towards the weekly goal	Performance of the requested service	Stays on the device
Settings: custom workout, signals, display	Keep your preferences from one workout to the next	Performance of the requested service	Stays on the device
Advertising identifier and technical device data	Display the banner ad that funds the app	Consent (form shown on first launch)	Google and its advertising partners

Permissions requested

Notifications: show the phase and time left during the workout, with pause and stop buttons.
Physical activity (Android 14 and later): required by Android for a workout to keep running with the screen off. The app reads no motion, step or sensor data.
Vibration and keeping the device awake during the workout: signal phase changes at the exact time.

What the app does not do

No user account, no sign-up, no subscription.
No location: the app knows neither your position nor your route.
No health data collected or transmitted.
No analytics, no crash reporting, no usage statistics.
No sale of data.

Advertising and consent

The app displays a banner served by Google AdMob on the home and history screens, never during a workout. On first launch, in the European Economic Area, the United Kingdom and Switzerland, a TCF-compliant consent form is presented. No ad request is made before you answer.

You can change your choice at any time from Settings › Privacy options. Withdrawing consent takes effect immediately.

How Google processes data: policies.google.com/technologies/partner-sites. You can also reset or delete your advertising identifier in the Android settings (Settings › Privacy › Ads).

Third-party services

Google AdMob — advertising. Privacy policy
The phone's text-to-speech engine — reads the announcements. It runs on the device: only fixed texts ("Fast walking"…) are passed to it.

Storage and deletion

All app data — history and settings — is stored only in the app's private storage on your device. It is permanently deleted when you uninstall the app or clear its data from the Android settings.

If Android automatic backup is enabled on your device, this data may be copied to your personal Google Drive space, to which the publisher has no access.

Your rights

The General Data Protection Regulation grants you rights of access, rectification, erasure, restriction and objection, as well as the right to withdraw your consent.

In practice, since the publisher holds no data about you, these rights are exercised directly on the device: withdraw advertising consent from the app's settings, clear its data or uninstall it. For any question, write to oliviertheandroidmaker@gmail.com.

You may lodge a complaint with your national data protection authority — in France, the CNIL.

Children

Japanese Walking is not directed at children under 13 and does not knowingly collect their data.

Changes

This policy may change. The date of the last update appears at the top of the page; substantial changes will be noted in the app's release notes.