Comparison

xDelete vs simos.app

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

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.

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
Read full 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: 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

xDelete4 screens
simos.app4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
xDelete versus simos.app: the parameters behind the verdict, then further details
ParameterxDeletesimos.app
PriceFreeFree
Rating4.7 (498 ratings)5.0 (2 ratings) — better
Positive reviews72.7% of reviews—
Number of ratings498 — better2
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size265 MB6 MB
Age rating4+4+
DeveloperxAutomotive GmbHTycho Sebastian Holzer

Customer experience

xDelete

All ratings498 ratings
Positive93.6%
Neutral1.0%
Negative5.4%
Written reviews88 reviews
Positive72.7%
Neutral4.5%
Negative22.7%

simos.app

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

None

xDelete

No in-app purchases

None

simos.app

No in-app purchases

Questions

Is xDelete free?
xDelete is free to download, with no in-app purchases.
Is simos.app free?
simos.app is free to download, with no in-app purchases.
Which has better reviews, xDelete or simos.app?
simos.app is rated higher. xDelete averages 4.7 out of 5 from 498 ratings, while simos.app averages 5.0 from 2 ratings.
Do xDelete or simos.app have ads?
Neither xDelete nor simos.app shows ads.
Which is updated more often, xDelete or simos.app?
xDelete ships an update every 2 weeks, and simos.app every 4 days. Most recently, xDelete was updated on October 10, 2026 and simos.app on October 1, 2026.

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