# simos.app vs DSFlex ECA

The clearest difference is in-app purchases: DSFlex ECA at none against simos.app's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. simos.app sells 3 one-off in-app purchases. DSFlex ECA asks for nothing beyond the download.

## The numbers

| Metric | simos.app | DSFlex ECA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/simosapp/id6760018423/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Monetization | Free | — |
| Size | 6 MB | 1 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Tycho Sebastian Holzer](https://appshunter.io/developer/1882338941) | [Daviti Samakashvili](https://appshunter.io/developer/1829461213) |

## What reviewers say

### simos.app

[App page](https://appshunter.io/ios/app/simosapp/id6760018423)

This tool provides diagnostic, data logging, and flashing capabilities for VAG petrol engines with specific Simos ECUs. Monitor real-time engine parameters, analyze recorded sessions with graphs, and update your ECU with stock or custom tunes.

**Highlights:** Real-time ECU parameter monitoring, Live data logging via Bluetooth LE, ECU identification (software/calibration IDs), Multi-channel graph analysis of logged sessions, ECU and TCU flashing (stock and custom tunes), Support for Simos 18.x and 12.1 ECUs

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| App VIN Unlock | $17.99 | one-time |
| Wizard: Pops & Bangs - Single Bin | $17.99 | one-time |
| Stage 1 Bin | $179.99 | one-time |


### DSFlex ECA

[App page](https://appshunter.io/ios/app/dsflex-eca/id6817031151)

**In-app purchases:** none


## Frequently asked questions

### Is simos.app free?

simos.app is free to download, with in-app purchases available.

### Is DSFlex ECA free?

DSFlex ECA is free to download, with no in-app purchases.

### Do simos.app or DSFlex ECA have ads?

Neither simos.app nor DSFlex ECA shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*