simos.app
Tycho Sebastian Holzer
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About this app
simos.app is a diagnostic, data logging and flashing tool built specifically for VAG petrol engines running Simos 18.1, 18.2, 18.6, 18.10 and Simos 12.1 ECUs. The platforms found in most modern TSI and TFSI engines across Audi, VW, Škoda, SEAT, Cupra and Porsche. LIVE DATA LOGGING Read ECU parameters directly in real time. Monitor boost pressure, injection timing, lambda, temperatures, torque and more at high sample rates over a Bluetooth LE connection. ECU IDENTIFICATION Read software versions, calibration IDs and hardware info straight from the control unit. LOG ANALYSIS Visualize recorded sessions with multi-channel graphs. Spot correlations between parameters without leaving the app. FLASHING Update your ECU and TCU to the latest version for your vehicle or flash a custom tune. Full features available for Simos 18.1/18.10 and 18.6. Flashing stock files or pre-unlocked ecus for Simos 18.2, 18.4, 18.41 and Simos 12.1. –– Built for enthusiasts, tuners and workshops who need more than a generic scan tool. Basic knowledge of ECU diagnostics is recommended. This app is for informational and diagnostic purposes only. Any modifications to vehicle systems are the sole responsibility of the user and must comply with local laws and regulations. –– Bluetooth LE OBD adapter required. Get yours here: https://simos.app/dongle Other compatible adapters: Macchina A0, DIY A0 clone https://github.com/Switchleg1/AMAleg require custom firmware: https://simos.app/dongle/firmware
What's new
Version 1.9.16 · Nov 4, 2026
- DQ200 MQB (0CW): CAL and full flashing (beta) - Flashing checks the battery before you pick a file and warns below 12 V - DQ381 full flash is no longer marked as beta - New Community tab: forum threads, replies, likes and photos - Logging: export and import all PIDs as CSV, including address overrides - PID CSV: CarPlay column picks the CarPlay PIDs; export adds example rows for Mode 22 and HSL PIDs - New PID: Oil Pump Low (oil pump pressure stage) - DSG HSL logging now defaults to 10 Hz, up to 20 Hz
In-app purchases
The most popular purchases on the App Store.
- Wizard: Pops & Bangs - Single BinConsumableUSD 17.99
- Stage 1 BinConsumableUSD 179.99
- App VIN UnlockConsumableUSD 17.99
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