Privacy Policy

Tacho · Last updated: 2 October 2026

Tacho (“Tacho”, “the app”, “we”) is a GPS speedometer and trip tracker: it shows your travelling speed and records trips for cars, bikes, buses, trains, scooters and bicycles. In plain terms: your location is measured and your trips are stored on your own phone. Tacho has no accounts, no ads, no analytics and no tracking — and it is built without internet access, so it cannot upload your data anywhere even in principle.

1. What the app stores on your device

Everything Tacho records lives in a private database on your phone:

• Trips — start and end times, distance, average and maximum speed, and the statistics shown in the app.
• Route points — the GPS points of a recorded trip, used for the route sketch and GPX export. Route retention is on by default and can be turned off at any time in Settings; with it off, only the trip statistics are kept.
• Vehicle profiles and settings — the names and types you create (for example “Car”), your unit and display preferences, and your privacy choices.

This information is not uploaded to us — we operate no server that receives it and we cannot see it. Uninstalling the app removes this data from the phone.

2. Location — the only permission the app asks for

Tacho needs your device location to measure speed and distance. The app asks for location access while the app is in use (foreground only):

• The measurement happens live, on the phone. The app reads the speed your GPS chip reports and the distance travelled between fixes.
• Tacho does not use background location: when you leave the app, GPS updates stop, and no location is collected while you are not using it.
• Your location and route are never sent to us or to anyone else by the app. They leave the phone only if you share an exported file (see Section 4).
• If you deny the permission, the app explains what is missing and everything else keeps working; speed and distance simply cannot be measured.

3. No internet, no accounts, no ads, no tracking

Tacho is offline by design. The app requests no internet permission at all, which means it has no technical way to send your trips, routes, location or settings anywhere. There is no sign-up, no login and no cloud sync. The app contains no advertising SDK, no analytics, no crash reporting and no third-party tracking of any kind, and we build no profile of you.

4. Exports you choose to make

Tacho can export a trip (or all trips) as CSV, JSON or GPX files. Exporting happens in the app’s private storage on your phone. Nothing is transmitted unless you tap the share option and pick a destination (messaging app, email, cloud drive, and so on) in the system share sheet. Once you share a file, the app you send it to handles it under its own privacy policy. GPX files include the trip’s route points when route retention was on for that trip.

5. Device permissions

• Location (precise and approximate) — while the app is in use, to measure speed, distance and the recorded route. No background location.

That is the complete list. Tacho asks for no other permissions — no internet, no camera, no photos, no contacts, no notifications and no background location.

6. What we do not do

• We do not run a server that stores your trips, routes or location.
• We do not sell, rent or share your data with anyone.
• We do not show ads and we do not use advertising identifiers.
• We do not track your usage of the app or track your location in the background.
• We cannot see your data: it never leaves your phone unless you export and share it yourself.

7. Children

Tacho is a general-purpose driving and travel tool and is not directed at children.

8. Data retention and deletion

Your data stays on your phone until you delete it. You can erase every stored trip and route point at any time with Settings → Delete all trip data; uninstalling the app removes everything else. Files you exported and shared to another app or folder are outside Tacho, so delete them where you saved them.

9. Changes to this policy

If the app’s data practices change, this page will be updated and the “Last updated” date above will change.

10. Contact

Tacho is published by Graphical Art Studio, Kolkata, West Bengal, India. For questions about this policy or your data, contact mukeshpatra.hitk@gmail.com or phone +91 98309 49024.