# 034SPI vs SlugMarket

The clearest difference is rating: 034SPI at 4.2 against SlugMarket's 3.0. 034SPI also leads on ratings volume (43 vs 2) and iOS requirement (15.0 vs 17.0). SlugMarket's advantage is update cadence (every 2 days vs every 2 weeks). 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.

034SPI holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: 034SPI has 43 ratings behind it against 2, so its average is the more settled of the two.

034SPI ships an update every 2 weeks, SlugMarket every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 034SPI | SlugMarket |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (43 ratings)](https://appshunter.io/ios/app/034spi/id6468930588/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/slugmarket/id6767780635/reviews) |
| Number of ratings | **43** | 2 |
| Positive reviews | 55.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free | Free |
| Size | 126 MB | 16 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [034Motorsport](https://appshunter.io/developer/1699254218) | [Mukund Ojha](https://appshunter.io/developer/1896508278) |

## What reviewers say

### 034SPI

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

This app allows users to flash their car's ECU/TCU tunes, configure live data displays, and record data logs for analysis. It also provides diagnostic support tools like reading and clearing DTC codes.

**Highlights:** Flash ECU/TCU tunes, Configure live data displays, High-speed data logging, Upload logs to server, Read and clear DTCs, View emissions monitor status

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

**In-app purchases:** none


### SlugMarket

[App page](https://appshunter.io/ios/app/slugmarket/id6767780635)

A verified marketplace for UC Santa Cruz students to buy, sell, and discover items and housing. Connect with other students through in-app messaging and manage your listings easily. Offers a safer, more focused experience than general marketplaces.

**Highlights:** Browse student listings, Create and manage listings, In-app messaging, Explore housing and subleases, Verified student profiles, Notifications for messages and listings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 034SPI free?

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

### Is SlugMarket free?

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

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

034SPI is rated higher. 034SPI averages 4.2 out of 5 from 43 ratings, while SlugMarket averages 3.0 from 2 ratings.

### Do 034SPI or SlugMarket have ads?

Neither 034SPI nor SlugMarket shows ads.

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

034SPI ships an update every 2 weeks, and SlugMarket every 2 days. Most recently, 034SPI was updated on November 3, 2026 and SlugMarket on October 31, 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.*