PistonbookWho is behind it? One person who loves mechanics and code, working alone in their spare time: no company, no investors, no ad network. Pistonbook was born when the app its developer used shut down. It is built with the help of an AI, and every version is tested on a phone and by hundreds of automated tests. A question? contact@debirumans.fr
Free beta · Android, iPhone and web
The logbook for your cars and motorcycles.
Servicing, mileage, spending and documents, all in one place. Free, no account needed, and your data stays encrypted on your phone.
On iPhone too: the web version installs on your home screen from Safari. How to
- Price
- €0
- Vehicles
- Unlimited
- Account
- Optional
- Your data
- Encrypted
The essentials, without the chore
Every service is logged, dated and priced. The rest fills itself in. When you sell, the buyer has the whole story in front of them.
Servicing and mileage
Your whole history in one place, a reminder before every oil change, and how far you drive.
Servicing and mileageScan your invoices and receipts
Take a photo, and the service or fill-up is filled in for you.
Scan and readRunning costs
What your vehicle really costs you, per month and per mile.
Vehicle budgetDocuments and renewals
Insurance, MOT or inspection, licence: never caught out by an expired document.
The gloveboxA free AI mechanic
A warning light, a strange noise, an OBD code? It answers knowing your vehicle.
Made for what you ride and drive
Each vehicle only shows what matters to it. Pick how you use it (normal, heavy, road and track, track only) and the reminders follow.
What it looks like
Real screenshots of the app (shown here in French): a Clio RS that also goes on track, an MT-07 and a track R6.
Swipe to see the screens →
Free, for real
Many car apps are free until the second car, the tenth invoice or the export. In Pistonbook, everything that runs on your phone is free and unlimited. Premium will come later, at a token price (under €2 a month), only for what needs a server.
Compare with other apps- Vehicles, services, fill-ups: unlimited
- Invoice scanning: unlimited, read on your phone
- PDF and CSV export: included
- Sync: free for life for beta users
- Ads: nothing intrusive
Private by design
No account required, no trackers. Your logbook is encrypted on your phone, and so is the online backup, which the server cannot read.
How your data is protectedEncrypted on your phone
Database and documents encrypted, keys kept in the device's secure vault.
Changing phones
Encrypted online backup, with a code or an optional account.
Your logbook in the browser too
With your account or your online backup code. What you change there comes back to your phone, and everything stays encrypted. Free during testing, the web version will then be for Premium members.
What people ask us most
Is there a free app to track my car's maintenance?
Pistonbook is a free Android maintenance log app: services with parts and labour, reminders by date or mileage, a mileage curve, running costs and vehicle documents. Vehicles, entries and invoice scans are unlimited in the free version.
Which app should I use for my motorcycle's maintenance?
Pistonbook handles motorcycles, scooters, mopeds and three-wheelers as well as cars, with what is specific to them: chain lubing and tensioning logged in one tap, front and rear tyres tracked separately, winter storage and rider gear. See Pistonbook for motorcycles.
Is my data safe? Do I need an account?
No account is needed. All your data stays on your phone, encrypted, with keys kept in the device's secure vault. The online backup, if you turn it on, is encrypted before it leaves and the server cannot read it. Neither your number plate, your VIN nor your name is sent.
Is Pistonbook really free?
Everything that runs on your phone is free and will stay free, with no limit on vehicles or entries, and nothing intrusive. A Premium plan will come later, at a token price (under €2 a month), only for what costs a server: sync between devices and the web version. Sync is free for life for beta users.
Does it work in miles?
Yes. Pistonbook follows your phone's country: miles, UK or US gallons, mpg and pounds or dollars in the UK and the US, kilometres and litres elsewhere. You can change units and currency in the settings.
Which phones does Pistonbook run on?
On Android (version 8 or later), in beta on the Google Play Store and open to everyone, and in a computer's browser with the web version. On iPhone, the web version installs on the home screen from Safari, until there is an App Store app.
Want to try it?
It is free, and the demo mode lets you explore everything before entering your own vehicle.