---
title: "simos.app - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "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 "
---

# simos.app — United States
> VAG ECU Diagnostics & Logging

![simos.app App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/17/3a/85/173a854f-a979-b265-887c-b19f3f76623c/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/434x0w.png)

**Developer:** [Holzer Consulting](https://apptail.io/developer/holzer-consulting-JjpPic)
**Category:** Utilities
**Rating:** 5.0/5 (2 ratings)
**Price:** Free
**Bundle ID:** ch.holzer-consulting.simos-app
**Store:** Apple App Store
**Country:** United States
**Version:** 1.9.12 (released 2026-10-07)
**Original Release:** 2026-03-12
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6760018423)
**AppTail Page:** [https://apptail.io/app/simosapp-hFLz/united-states](https://apptail.io/app/simosapp-hFLz/united-states)

## simos.app Description
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: 
Other compatible adapters: Macchina A0, DIY A0 clone  require custom firmware: 

## simos.app Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5d/c7/7d/5dc77dc3-a72a-7f4a-e733-4ea8bbd60f19/connections.png.jpeg/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0c/50/77/0c50770b-7838-76a1-2471-9c7d10c0000c/live-tab.png.jpeg/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/72/58/f3/7258f309-0e27-bd6f-c4a0-5ea18f1f9577/logs.png.jpeg/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3a/11/0f/3a110f41-7d62-05d7-be21-77bfcf55a1ca/log-detail-overview.png.jpeg/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/99/48/80/994880ae-4ecb-7003-f901-35fd178f9132/flash-tab-locked-ecu.png.jpeg/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/52/10/05/5210053e-48ea-33ce-4810-2ec52e061d3b/full-flash-done.png.jpeg/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d0/1c/30/d01c3075-0d40-a8fd-ead1-886012dcb871/long-coding.png.jpeg/1284x2778.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/23/7e/d4/237ed480-3aac-4960-b708-9020c92cd5da/tools.png.jpeg/1284x2778.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f5/9b/d3/f59bd346-6628-800b-e62a-7ae805a0feb1/tune-tab-purchased-stage-1.png.jpeg/1284x2778.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/17/ab/42/17ab42b9-324d-93a1-65b3-08e17472a6b0/ethonal-content-wizard.png.jpeg/1284x2778.png)

## simos.app Rating Breakdown in United States
- 5 stars: 2 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)





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## simos.app Available In
- [United States](https://apptail.io/app/simosapp-hFLz/united-states)
- [Australia](https://apptail.io/app/simosapp-hFLz/australia)
- [Spain](https://apptail.io/app/simosapp-hFLz/spain)
- [Canada](https://apptail.io/app/simosapp-hFLz/canada)
- [Chile](https://apptail.io/app/simosapp-hFLz/chile)
- [Dominican Republic](https://apptail.io/app/simosapp-hFLz/dominican-republic)
- [Algeria](https://apptail.io/app/simosapp-hFLz/algeria)
- [Egypt](https://apptail.io/app/simosapp-hFLz/egypt)
- [United Kingdom](https://apptail.io/app/simosapp-hFLz/united-kingdom)
- [Croatia](https://apptail.io/app/simosapp-hFLz/croatia)
- [Lebanon](https://apptail.io/app/simosapp-hFLz/lebanon)
- [Sri Lanka](https://apptail.io/app/simosapp-hFLz/sri-lanka)
- [Mexico](https://apptail.io/app/simosapp-hFLz/mexico)
- [Malaysia](https://apptail.io/app/simosapp-hFLz/malaysia)
- [New Zealand](https://apptail.io/app/simosapp-hFLz/new-zealand)
- [Russia](https://apptail.io/app/simosapp-hFLz/russia)
- [Slovakia](https://apptail.io/app/simosapp-hFLz/slovakia)
- [Türkiye](https://apptail.io/app/simosapp-hFLz/turkey)
- [Taiwan](https://apptail.io/app/simosapp-hFLz/taiwan)
- [Ukraine](https://apptail.io/app/simosapp-hFLz/ukraine)
- [Uzbekistan](https://apptail.io/app/simosapp-hFLz/uzbekistan)
- [United Arab Emirates](https://apptail.io/app/simosapp-hFLz/united-arab-emirates)
- [South Africa](https://apptail.io/app/simosapp-hFLz/south-africa)
- [Armenia](https://apptail.io/app/simosapp-hFLz/armenia)
- [Brazil](https://apptail.io/app/simosapp-hFLz/brazil)

---

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