# 034SPI vs CarAtlas

The clearest difference is review sentiment: CarAtlas at 100% against 034SPI's 55%. CarAtlas also leads on rating (5.0 vs 4.2) and update cadence (every 8 days vs every 2 weeks). 034SPI's advantage is ratings volume (43 vs 3) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CarAtlas holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: 034SPI has 43 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 55% of 034SPI's written reviews are positive against 100% of CarAtlas's.

034SPI ships an update every 2 weeks, CarAtlas every 8 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 034SPI | CarAtlas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (43 ratings)](https://appshunter.io/ios/app/034spi/id6468930588/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/caratlas/id6760439979/reviews)** |
| Number of ratings | **43** | 3 |
| Positive reviews | 55.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | Free | Free |
| Size | 124 MB | 17 MB |
| Requires iOS | **12.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [034motorsport Industries, LLC](https://appshunter.io/developer/1699254218) | [isaiah vincent](https://appshunter.io/developer/1884487431) |

## 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


### CarAtlas

[App page](https://appshunter.io/ios/app/caratlas/id6760439979)

Discover local car shows, cruises, and meetups. See who's attending, add your own vehicles, and connect with other car enthusiasts. Host and manage your own events with ease.

**Highlights:** Discover local car meets, Filter by distance, date, and category, View meet details and attendees, Host and manage your own events, Build and showcase your car garage, Connect with other enthusiasts, Direct messaging and group chats

**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 CarAtlas free?

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

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

CarAtlas is rated higher. 034SPI averages 4.2 out of 5 from 43 ratings, while CarAtlas averages 5.0 from 3 ratings.

### Do 034SPI or CarAtlas have ads?

Neither 034SPI nor CarAtlas shows ads.

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

034SPI ships an update every 2 weeks, and CarAtlas every 8 days. Most recently, 034SPI was updated on October 24, 2026 and CarAtlas on October 25, 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.*