simos.app vs Truck Explorer v8
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Truck Explorer v8
This specialized tool offers comprehensive programming and diagnostic solutions for trucks, buses, and heavy vehicles. It enables reading/writing control unit memory, ECU repair, key programming, and parameter adjustments. Supports a wide range of major heavy vehicle brands.
- Read/write/clone control unit memory
- Repair and recover ECUs
- Program new keys
- Immobilizer off functionality
- Pair/unpair ECUs
- Change speed and torque limits
- Perform OBD and bench diagnostics
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Truck Explorer® - unique special operation tool for trucks, buses and other heavy vehicles. All in one tool for programming and diagnostic solutions. VEI device together with Truck Explorer software allows you to: Read / write / clone memory of control units (full Flash & Eeprom); Repair & recover ECU; Increase maximum power; Program new keys; Make immo off; Pair/unpair ECU; Change speed and torque limits; Calculate access codes (FDOK, VeDOC, DAS); Perform diagnostics by OBD and on bench; Change parameters and more. Supported heavy vehicle brands: Mercedes-Benz, MAN, Iveco, Scania, Volvo, Freightliner, Bharat-Benz, DAF, CLAAS, Setra, VW and many more...
Screenshots
Verdict
The clearest difference is in-app purchases: Truck Explorer v8 at none against simos.app's 3. On price, rating, ratings volume and update cadence 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. simos.app sells 3 one-off in-app purchases. Truck Explorer v8 asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for simos.app against 5.0 for Truck Explorer v8. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
simos.app ships an update every 6 days, Truck Explorer v8 every 9 days. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.
| Parameter | simos.app | Truck Explorer v8 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 6 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 | 17 — better |
| Further details — not scored | ||
| Size | 6 MB | 256 MB |
| Age rating | 4+ | 4+ |
| Developer | Tycho Sebastian Holzer | DIELEKTRIK |
Customer experience
simos.app
Truck Explorer v8
In-app purchases
simos.app
- App VIN Unlock$17.99
- Wizard: Pops & Bangs - Single Bin$17.99
- Stage 1 Bin$179.99
Truck Explorer v8
No in-app purchases
Questions
Is simos.app free?
Is Truck Explorer v8 free?
Which has better reviews, simos.app or Truck Explorer v8?
Do simos.app or Truck Explorer v8 have ads?
Which is updated more often, simos.app or Truck Explorer v8?
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