OpenBimmer
Live gauges, logs, fault codes
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Boost, timing, temperatures and lambda live, data logs with CSV export, fault codes and a 0-100 timer. Free, open source, no account.
OpenBimmer turns a Bluetooth LE OBD adapter into a live dashboard, data logger and diagnostics tool. It is built for BMW turbo engines (N54, N55, B58, S55, N13, S58, S63) and works with any car that has an OBD-II port.
LIVE GAUGES
- Boost against target, ignition timing, intake, coolant and oil temperature, lambda and AFR, fuel rail pressure, load and more
- Peak hold, min and max for every value and a shift light that follows your engine's redline
- Choose what every gauge shows
DATA LOGS
- Record pulls with up to 34 channels
- Scrub through them on a multi-channel chart
- Export CSV for datazap or a spreadsheet
DIAGNOSE
- Read stored, pending and permanent engine fault codes with descriptions
- Clear codes, check readiness monitors, read the VIN and battery voltage
PERFORMANCE TIMER
- 0-100 km/h, 100-200 km/h, 0-60 mph, 60-130 mph, 1/8 and 1/4 mile
- GPS or OBD speed, history and best times
FREE, OPEN SOURCE, PRIVATE
- No account, no ads, no tracking. Your data stays on your phone.
- Source code: github.com/openbimmer/openbimmer (MIT license)
WHAT YOU NEED
An ELM327-compatible Bluetooth LE adapter, for example Vgate iCar Pro BLE, Veepeak OBDCheck BLE, vLinker BLE or OBDLink CX. No adapter yet? The built-in demo adapter lets you try everything.
OpenBimmer reads standardised OBD-II data and never writes software to your car. Never use the app while driving. OpenBimmer is an independent community project and not affiliated with BMW AG. BMW and the engine names are trademarks of their owners and are only used to describe compatibility.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Codext GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Codext GmbH
- Size
- 49.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Codext GmbH