# 034SPI vs GWSCAN

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.

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.

## The numbers

| Metric | 034SPI | GWSCAN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (42 ratings)](https://appshunter.io/ios/app/034spi/id6468930588/reviews) | **[4.3 (83 ratings)](https://appshunter.io/ios/app/gwscan/id6484502290/reviews)** |
| Number of ratings | 42 | **83** |
| Positive reviews | 52.6% of reviews | **58.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | **Free** | Paid |
| Size | 124 MB | 492 MB |
| Requires iOS | 12.2 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [034motorsport Industries, LLC](https://appshunter.io/developer/1699254218) | [Apex Tool Group](https://appshunter.io/developer/1401209994) |

## What reviewers say

### 034SPI

[App page](https://appshunter.io/ios/app/034spi/id6468930588)

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.

**Highlights:** Flash ECU/TCU tunes, Change fuel octane/transmission files, Configure live data displays, High-speed data logging, Read & clear DTC codes, Perform adaptations/recalibrations

**Features:** macOS Compatibility

**In-app purchases:** none


### GWSCAN

[App page](https://appshunter.io/ios/app/gwscan/id6484502290)

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.

**Highlights:** OBDII Diagnostics, In-depth system scans, Live engine data monitoring, Maintenance light reset, Scan and clear DTCs

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 034SPI free?

034SPI is free to download, with no in-app purchases.

### Is GWSCAN free?

GWSCAN is free to download, with no in-app purchases.

### Which has better reviews, 034SPI or GWSCAN?

GWSCAN is rated higher. 034SPI averages 4.2 out of 5 from 42 ratings, while GWSCAN averages 4.3 from 83 ratings.

### Do 034SPI or GWSCAN have ads?

Neither 034SPI nor GWSCAN shows ads.

### Which is updated more often, 034SPI or GWSCAN?

034SPI ships an update every 2 weeks, and GWSCAN every 2 months. Most recently, 034SPI was updated on September 16, 2026 and GWSCAN on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*