xDelete vs simos.app
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
xDelete
This app allows you to switch between AWD, AWD Sport, and RWD modes in your BMW xDrive vehicle. You can also customize power distribution. It's a safe and reversible process that doesn't trigger fault codes or require hardware installation.
- Switch between AWD, AWD Sport, and RWD
- Customize power distribution
- Supports most BMWs (2004-2021)
- No hardware installation required
- 100% safe and reversible
- Not detectable by dealers
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xDelete will enable you to switch between AWD, AWD Sport and RWD in your xDrive equipped car! Or go custom and change the power distribution with an easy slider! With xDelete Live, you can now switch your xDrive mode instantly while driving! Flash once and then switch between 4WD, 2WD and 4WD Sport on the fly — directly from your smartphone or with a simple in-car gesture. You can even choose individual presets for every DSC mode (ON, OFF and Traction) and view real-time data and your current AWD mode directly in xDelete. xDelete Live is currently available for BMW E and F-Series, with support for G-Series in development. xDelete supports most BMW from MY 2004 up to MY 2021! (E, F and G-Series BMW) Please go to https://www.xautomotive.com/pages/supported-cars for details! Facts: * Smartphone/Tablet App to configure your xDrive-System * Switch between 4WD, 2WD and 4WD Sport * xDelete Live: Switch modes instantly while driving * Individual xDrive presets for every DSC mode * 100% safe for your car * Not detectable by the dealer * No additional hardware to install * No fault codes triggered * Steering Assist, ABS & DSC stay fully functional * You can leave your car in RWD mode forever, or change between AWD and RWD whenever you like * You can manage unlimited vehicles on one device (Licenses are per vehicle) More Information on our website: https://www.xautomotive.com/products/xdelete
simos.app
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.
- 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
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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
Screenshots
Verdict
The clearest difference is monetization model: simos.app at free against xDelete's paid. simos.app also leads on rating (5.0 vs 4.7) and update cadence (every 4 days vs every 2 weeks). xDelete's advantage is ratings volume (498 vs 2) and device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
simos.app holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: xDelete has 498 ratings behind it against 2, so its average is the more settled of the two.
xDelete ships an update every 2 weeks, simos.app every 4 days. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.
| Parameter | xDelete | simos.app |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (498 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 72.7% of reviews | — |
| Number of ratings | 498 — better | 2 |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 265 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | xAutomotive GmbH | Tycho Sebastian Holzer |
Customer experience
xDelete
simos.app
Bugs and requests
xDelete
Reported bugs
4 issues- Login screen freezes
- Incompatible with older devices
- App becomes completely unresponsive until reinstalled
- Cannot switch back to xdrive after flashing to rwd
Requested features
3 requests- Add 2WD only setting
- Dark mode option
- Advanced analytics dashboard
simos.app
Not enough reviews yet to summarise bugs or requests.
In-app purchases
xDelete
No in-app purchases
simos.app
No in-app purchases









