034SPI vs GWSCAN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
034SPI
This app allows users to flash their car's ECU/TCU, change fuel maps, and configure live data displays. It also provides diagnostic tools like reading and clearing DTC codes. Compatible with Dynamic+ ECU/TCU tunes and the Dynamic+ End User Flashing Dongle.
- Flash ECU/TCU tunes
- Change fuel octane/transmission files
- Configure live data displays
- High-speed data logging
- Read & clear DTC codes
- Perform adaptations/recalibrations
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Designed for use on iPhone/iOS as well as Apple Silicon-equipped laptops (M1, M2, M3), 034SPI allows you to easily flash your car, change fuel maps, configure live data displays, record and submit data logs to 034Motorsport's Tuning Support team, and utilize diagnostic support tools such as DTC/CEL code read/clear and more! Available now for use with any Dynamic+ ECU or TCU tune and the latest Dynamic+ End User Flashing Dongle (May 2023 & Newer)! Full App Features: Complete Any ECU Or TCU Tune flash Quickly Flash Different Fuel Octane Or Transmission Files Flash ECU/TCU Using Mobile Device's Internet Connection Enhanced Flashing Protocol Protections For Increased Flashing Stability User-Configurable Live Data Displays Dozens Of Defined Variables Available Multiple Display Types Available for Live Dt High-Speed Data Logging Of Pre-Defined Variables Easy Upload Of Logs To 034Motorsport Server Data Log Analysis Services Available Free Of Charge Read & Clear DTCs On ECU & TCU View Emissions Monitor Statuses Perform Adaptations/Recalibrations* Throttle Body Adaptation Fuel Tank Drain *Available for limited platforms, coverage expanding regularly
GWSCAN
Unlock advanced vehicle diagnostics and maintenance insights. This tool helps you understand your car's systems, read and clear trouble codes, and monitor live engine data. Ideal for vehicle owners seeking professional-level insights without the dealership cost.
- OBDII Diagnostics
- In-depth system scans
- Live engine data monitoring
- Maintenance light reset
- Scan and clear DTCs
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GWSCAN DIAGNOSTICS THAT BREAK ALL THE RULES! Unlock your inner mechanic with the tool that shows you what the pro knows. A must-have for every vehicle owner. The GWSCAN offers essential diagnostics with advanced features, covering 85+ manufacturers, a 2-year warranty, and free software updates—without breaking the bank. Diagnose and reset check engine lights from your driveway, saving time and money. Take control of your car care with confidence and convenience—choose GWSCAN. Detailed Features: 1) OBDII Diagnostics Offers standard OBDII diagnostics for engines, including scanning and clearing of Diagnostic Trouble Codes (DTCs). 2)In-depth Check Performs comprehensive system scans on vehicles, including the chassis and body, to display manufacturer fault codes, provide definitions, and enable code clearing. 3)Live Data Displays live engine data during idle, operational, or full load conditions, including real-time information on RPM, battery voltage, air and fluid temperatures, and engine load. 4)Maintenance Light Reset Reset the maintenance counter and turn off the maintenance light after finishing maintenance.
Screenshots
Verdict
The clearest difference is monetization model: 034SPI at free against GWSCAN's paid. 034SPI also leads on update cadence (every 2 weeks vs every 2 months). On price, rating, review sentiment and ratings volume 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.
On the App Store both sit at effectively the same score — 4.2 for 034SPI against 4.3 for GWSCAN. Both are backed by a comparable volume of ratings — 42 and 83 respectively. Written reviews are what separate them: 53% of 034SPI's written reviews are positive against 59% of GWSCAN's.
034SPI ships an update every 2 weeks, GWSCAN every 2 months. The most recent releases landed on September 16, 2026 and September 21, 2026 respectively.
| Parameter | 034SPI | GWSCAN |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (42 ratings) | 4.3 (83 ratings) — better |
| Positive reviews | 52.6% of reviews | 58.6% of reviews — better |
| Number of ratings | 42 | 83 — better |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 124 MB | 492 MB |
| Age rating | 4+ | 12+ |
| Developer | 034motorsport Industries, LLC | Apex Tool Group |
Customer experience
034SPI
GWSCAN
In-app purchases
034SPI
No in-app purchases
GWSCAN
No in-app purchases









