POWERlink Suite vs simos.app
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
POWERlink Suite
Wirelessly tune your vehicle's performance using your smartphone. This app connects to a specific OBDII dongle to adjust engine parameters, monitor real-time data, and run diagnostics without a laptop.
- Wireless vehicle tuning
- Bluetooth OBDII connection
- Live gauge data monitoring
- Vehicle diagnostics
- Octane changes
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Join the tuning revolution and experience the game-changing freedom of mobile flashing. This app wirelessly connects via Bluetooth to our POWERlink OBDII Dongle, giving you control to tune your vehicle, change octanes, monitor live gauge data, perform diagnostics, and more -all from the palm of your hand! Add power anytime, anywhere -no laptop, no cords, no hassle. Important Notes: -Requires purchase of POWERlink (V4) OBDII Dongle and tuning software from Integrated Engineering (iE) or Xodus brands. -Mobile support is unavailable for VW MK5 or MK6 generation 2.0T or 2.5L (includes 3C, B6, 8P, 8U, and 5N chassis) and requires a Windows laptop.
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 ratings volume: POWERlink Suite at 1.6K against simos.app's 2. simos.app's advantage is update cadence (every 4 days vs every 2 weeks) and rating (5.0 vs 4.8). On price, ads, in-app purchases and monetization model 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 4.8. That said, the two scores are not equally well evidenced: POWERlink Suite has 1.6K ratings behind it against 2, so its average is the more settled of the two.
POWERlink Suite ships an update every 2 weeks, simos.app every 4 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.
| Parameter | POWERlink Suite | simos.app |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.6K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 56.3% of reviews | — |
| Number of ratings | 1.6K — better | 2 |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 17.6 |
| Further details — not scored | ||
| Size | 105 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Integrated Engineering | Tycho Sebastian Holzer |
Customer experience
POWERlink Suite
simos.app
Bugs and requests
POWERlink Suite
Reported bugs
3 issues- Tune flashing failures
- Disconnection during tuning
- Incompatibility with certain vehicles
Requested features
4 requests- Carplay support
- More gauge options
- Ability to revert to previous tune versions
- Support for more vehicle models
simos.app
Not enough reviews yet to summarise bugs or requests.
In-app purchases
POWERlink Suite
No in-app purchases
simos.app
No in-app purchases
