Privacy
Where does your data really go in TruckerMaster?
Updated 8 August 2026 · by Yann, a working truck driver
An answer feature by feature, without slogans. Your driver card and your payslip are the most sensitive things you own: you have the right to know exactly what is done with them.
The short answer
The analyses run on your phone. There is no account to create and no server that receives your card or your payslip. Only one feature can transmit anything — error reporting — and it is disabled by default: as long as you do not turn it on yourself in the settings, nothing leaves.
Feature by feature
| Feature | Data used | Processing | Transmission | Storage and deletion |
|---|---|---|---|---|
| Reading the card | Contents of the driver card | On the device | None | In the app; erasable at any time |
| File import | The .DDD or .C1B file you provide | On the device | None | In the app; erasable at any time |
| Reading the payslip | A photo of your payslip | On the device, offline recognition engine | None | In the app; erasable at any time |
| Audit and calculations | Activities, payslip, your contract settings | On the device | None | In the app; erasable at any time |
| Live cockpit | Counters read from the on-board unit | On the device | Local Bluetooth link, from cab to phone | Real-time display; history in the app |
| Calendar and file | Reconstructed days, documents you add | On the device | None | In the app; erasable at any time |
| Export and sharing | The document you choose to export | On the device | Only where you send it, by your own action | Outside the app once shared: up to you to manage |
| Error reporting | The learned label, an anonymous token in place of the employer's name, the app version | On the device, then sent if you have allowed it | Disabled by default — only if you turn it on | Never the raw payslip line, never the card file |
| Online backup | — | — | Does not exist today | Planned for a future version, optional and enabled by you |
The Bluetooth link with the on-board unit is a local link, from the cab to the phone: it goes through no server. And it only exists once you have entered the code displayed by the tachograph.
What does not exist in TruckerMaster
No account
No sign-up, no password, no mandatory email address. Nothing to attach a profile to.
No employer access
Your company cannot look at your data from the app: it has no access to it.
No advertising
No banner, no ad network, so no advertising tracker to feed.
No resale
There is nothing to resell: your data does not leave your device without your action.
What you control
- Erase — your data, the payslip recognition memory, or everything, from the settings.
- Export — to keep a copy at home, independently of the app.
- Refuse — error reporting stays off until you turn it on.
- Authorise — reading the tachograph is only possible after entering the code displayed in the cab.
- Decide — an export goes only where you send it, when you send it.
The permissions the app asks for and what they are used for are detailed on the compatibility page.
What we will not tell you
We will not tell you that "no data ever leaves your phone", because that would be false the moment you decide to export a report or to turn on error reporting. What is true, and verifiable: nothing leaves without an action on your part, and error reporting never carries away your payslip or your card file. To understand what each calculation does with that data: understand the calculation method.
Your data stays yours
No account to create, no data sent without you deciding so. Try it with a card file you already have.
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