CarAlgo — The intelligence missing from your car
CarAlgo is your car's connected co-pilot, designed by French engineers. Installed once, it watches over your car continuously — silently, in the background — and warns you before things go wrong.

Your car generates thousands of data points.CarAlgo turns them into useful information for you.
Anticipate breakdowns, control your spending and drive with peace of mind.

| Criteria | With CarAlgo | Without CarAlgo |
|---|---|---|
| Vehicle monitoring | ✓ Your car is monitored automatically, 24/7 | — You have to think of everything yourself |
| Breakdown prevention | ✓ Early alerts before a breakdown happens Excessive fuel use, battery, engine faults… | — Faults are only discovered when it's already too late |
| Diagnostics | ✓ Diagnostic check every time you start the car For each fault: explanation, causes, repair advice DTC fault code clearing | — Fault codes that are hard to understand |
| Maintenance | ✓ Digital maintenance log with automatic reminders | — Paper logbook, easy to forget |
| Dashboard | ✓ All your car's usage data in the app Fuel, battery, mileage, range, next maintenance… | — Limited to what's on the odometer |
| Trips | ✓ Full history of every trip, split by Personal / Business | — No history |
| Fuel consumption | ✓ Consumption analysis and eco-driving tips | — No way to analyse your spending |
| Safety | ✓ Engine, battery, maintenance, inspection and accident alerts | — No monitoring at all |
| Eco-driving | ✓ Driving score, lower fuel use and CO₂ emissions | — No advice at all |
| Location | ✓ GPS position and last known location | — Hard to find your car when you need to |
| Privacy | ✓ Private mode, switchable anytime | — N/A |
| Installation | ✓ Under 2 minutes to install, connects automatically | — N/A |
| Quality | ✓ French-made, certified, evolving and regularly updated | — N/A |
All the useful information about your car, in your smartphone.
True odometer
128,430 km
Fuel level
39.2 L
12V battery
13.6 V
EV battery
65 %
Range
436 km
Average consumption
6.4 L/100km
Engine fault diagnostics
Explanation, causes and repair advice
Next maintenance
1 month and 26 days
Trip history
Distance · duration · consumption
Road type
Urban, Mixed or Motorway
Mixed
Driving score
Acceleration, braking, cornering
87 / 100
Eco-driving score
Less pollution, less CO₂
92 / 100
Refuelling tracking
Automatic refuelling detection
Maintenance notifications
Service visits, MOT/inspection…
Real-time view
Live engine data
Phone call assistance
Breakdown, towing, assistance, insurance, garage
Find your car
GPS position of last known location
True odometer
128,430 km
Fuel level
39.2 L
12V battery
13.6 V
EV battery
65 %
Range
436 km
Average consumption
6.4 L/100km
Engine fault diagnostics
Explanation, causes and repair advice
Next maintenance
1 month and 26 days
Trip history
Distance · duration · consumption
Road type
Urban, Mixed or Motorway
Mixed
Driving score
Acceleration, braking, cornering
87 / 100
Eco-driving score
Less pollution, less CO₂
92 / 100
Refuelling tracking
Automatic refuelling detection
Maintenance notifications
Service visits, MOT/inspection…
Real-time view
Live engine data
Phone call assistance
Breakdown, towing, assistance, insurance, garage
Find your car
GPS position of last known location

Using your car for work?
CarAlgo automatically detects your business trips and generates a certified mileage expense report, ready to send to your employer or accountant. No more calculations, no more forgetting, no more spreadsheets.
Your mileage expenses in one click
- Detailed trips
- Mileage calculated automatically
- Personal / business distinction
- Date, time and distance of every trip
- Destination address
- CarAlgo-certified PDF document
Built for sales reps, consultants, technicians, self-employed nurses, tradespeople, freelancers and small business owners.
0 minutes of manual entry — real time saved every month.
Support their first miles with complete peace of mind.
Has your child just passed their driving test? Stay connected to their car, even when they hit the road alone.
With CarAlgo, you get useful information about the car and how it's used, right on your smartphone. The goal isn't to spy, but to support those first months of driving and encourage good habits behind the wheel.
With CarAlgo, you can:
- See where the car is
- Check the trips taken
- Track mileage and vehicle use
- View the driving and EcoDrive scores
- Track fuel consumption
- Receive vehicle alerts
- Be told about an engine fault or anomaly
- Detect a low battery
- Plan maintenance ahead

Less worry for parents, more independence for young drivers
The first weeks after passing the test are an important milestone. CarAlgo keeps you informed without being in the car, while giving the new driver the independence they need to gain experience.
Driving data also becomes a conversation starter: fuel use, trips, smoother driving, EcoDrive… all opportunities to gradually build good habits.
CarAlgo connects the driver, their car and their family to make the first miles more relaxed.


Fault codes, finally explained clearly.
Every time the engine starts, CarAlgo automatically checks your car's condition. If a fault is detected, you get a notification straight in the app.
- 1
Fault code explanation
What the code actually means for your car, in plain language.
- 2
Likely causes
The reasons that could explain this fault.
- 3
Repair advice
What to do about it, with no technical jargon.
Diagnostics can also be run manually at any time, to test any vehicle — not just your own.
Real preview of the CarAlgo app.
Secure connection
The connection between the Dongle and the mobile app is fully encrypted, with secure network protocols and strong authentication.
No unauthorised person can connect to your vehicle through CarAlgo.

Approved in Europe and the UK, compliant with current automotive standards.
Everything you need to know about CarAlgo.

Drive with peace of mind.
Compatible with most petrol, diesel, hybrid and electric vehicles fitted with an OBD-II port.
They transformed their driving experience.
Rebecca
Toulouse
Before CarAlgo
“At the slightest issue, it was total stress. I never knew if it was serious or how much it would cost.”
After CarAlgo
“Thanks to the Diagnostic feature, I spot the problem right away. Even before going to my mechanic, I already knew exactly what needed doing and how much it would cost.”
Maxime
Nantes
Before CarAlgo
“I used to drive without really realising my impact on the environment… and sometimes my driving was nervous and risky.”
After CarAlgo
“By following my EcoDrive and driving scores, I learned to anticipate braking and acceleration. My carbon emissions and fuel consumption have gone down.”
Mouloud
Lille
Before CarAlgo
“I'd only find out there was a battery problem… when my car already refused to start on a freezing morning.”
After CarAlgo
“CarAlgo warned me about the risk of a battery failure due to ageing. I replaced it in time, avoiding any cold-start issues.”
Sylver
Paris
Before CarAlgo
“I always used to forget my services. Result: late inspections and unexpected breakdowns…”
After CarAlgo
“CarAlgo sends me reminders at just the right time. Zero stress and my car runs perfectly!”
Ricardo
Bordeaux
Before CarAlgo
“I once forgot an important service… it cost me dearly.”
After CarAlgo
“CarAlgo warns me well in advance. Since then, no more late servicing!”
Aminata
Lyon
Before CarAlgo
“My daily trips were a complete mystery. I had no idea what my real fuel consumption was.”
After CarAlgo
“Now I can see exactly what I use on every trip. I've adapted my driving and I'm saving 15% on fuel!”
Plug it in once, then forget about it.
Plug in
The dongle into your car's OBD-II port. Just once.
Connect
Your car in the CarAlgo app, on iOS or Android, in minutes.
Forget it
The dongle stays plugged in and reconnects on its own, silently, on every trip.