Unlock and flash Simos 18.x
Flash your Simos 18.1, 18.6, and 18.10 ECU directly over OBD with the simos.app dongle. Unlock the ECU, write a full or calibration-only flash, update your tune anywhere or return to stock in minutes — no bench tools required.
OBD Flashing
Write calibration or full flash files to Simos 18.x ECUs through the OBD-II port using the simos.app dongle.
ECU Unlock
Unlock your Simos 18.x ECU for tuning. No soldering, no bench — just plug in and go.
CAL or Full Flash
Choose between a calibration-only update for quick map changes, or a full binary flash when needed.
Connect and monitor in seconds
Plug in your OBD2 Bluetooth adapter, open simos.app, and start reading live data from your ECU. View boost, RPM, knock values and hundreds more parameters.
Features
Bluetooth Connection
Connect wirelessly to your ECU via OBD2 Bluetooth adapter. No cables, no laptop needed.
Real-Time Gauges
Monitor boost, RPM, speed, knock and more with colorful live gauges updating at up to 10 Hz.
simos ECU Support
Full support for simos 12.1, 18.1, 18.6 and 18.10 ECUs found in 1.8 & 2.0L T(F)SI engines.
VW Group Cars
Works with Volkswagen, Audi, Skoda and Seat vehicles equipped with supported simos ECUs.
Log everything
Record boost pressure, injection timing, knock sensors, lambda values and more at up to 10 Hz. All data is stored locally on your device for later analysis.
Coming Soon
These features are currently in development and will be available in a future update.
Premade Stage 1
Flash your car with a premade stage 1 tune and get up to 30% more power
Waste Gate Adaption
Run waste gate adaption routines for precise boost control.
Long Coding
Access and modify long coding parameters for module configuration.
Analyze your data
View detailed charts, statistics and data channels for every log. Compare min, avg and max values across all recorded PIDs. Export your logs for further analysis.