Vintage Car Monitor

Content rating
Everyone
5+
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Content rating
Everyone
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About this app

Vintage Car Monitor is a driving, maintenance, and tuning management app designed for owners of vintage cars — from air-cooled Volkswagens and beyond.

■ GPS Speedometer
Real-time speed display via GPS, with switchable km/h and mph units. The meter's background color can be freely customized to match your car's interior. A Simple mode shows only the meter for clear visibility while driving.

■ ODO / TRIP Tracking
Total and trip distances are measured automatically via GPS. With background GPS support, tracking continues uninterrupted even while you use navigation or music apps. Records are kept separately for each vehicle.

■ Fuel Management
Just record the amount and odometer reading at each fill-up, and the app automatically calculates estimated remaining fuel, range, and average fuel economy. Switchable L / gal units are supported.

■ Carburetor Setting Records
Record and manage carburetor settings such as main jet, idle jet, and pilot screw turns. Multiple carburetors are supported, making it ideal for before-and-after comparisons and seasonal tuning history.

■ Oil Change Records
Log the date, mileage, oil brand, and viscosity. Set a target distance for the next change so you never miss the right timing.

■ Maintenance Records
Keep your inspection, repair, and service history all in one place. Register multiple vehicles and manage each one individually.

[Requirements]
Android 7.0 or later / Japanese and English supported

* The GPS Speedometer and ODO/TRIP values are calculated using GPS measurement, so they may differ from actual speed and distance. (To use background GPS, depending on your device you may need to exclude the app from battery optimization. Please refer to your device's manual for details.)
* Using background GPS requires your device's location setting to be set to "Always."
GPS speedometer & maintenance log app for vintage car owners.
Updated on
Oct 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location
  • Data isn’t encrypted
  • Data can’t be deleted

What’s new

Safer restore from backup.

- Before restoring, the app now saves a copy of your current data: to your auto-backup folder if you have set one, otherwise to the Documents folder on your device. You can also send it to cloud storage from the screen that follows.
- The backup file is now checked before restoring. If any part of it cannot be read, the restore is cancelled and your current data stays as it is.
- Exporting now tells you the file was saved to the Documents folder.
Content rating
Everyone
Learn more

App support

About the developer
IDEA SOURCE, K.K.
info@ideasource.jp
24-11, TAKIKOCHO, SHOWA-KU GRAND SIGHT TAKIKO 202 NAGOYA, 愛知県 466-0053 Japan
+81 52-307-5254