# Ultimate9 TC vs 034SPI

The clearest difference is rating: 034SPI at 4.2 against Ultimate9 TC's 3.0. 034SPI also leads on ratings volume (42 vs 2) and update cadence (every 2 weeks vs every 6 weeks). Ultimate9 TC's advantage is review sentiment (76% vs 55%). 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 42 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 76% of Ultimate9 TC's written reviews are positive against 55% of 034SPI's, so the app with the better star average is not the one people write more warmly about.

Ultimate9 TC ships an update every 6 weeks, 034SPI every 2 weeks. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Ultimate9 TC | 034SPI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/ultimate9-tc/id1550725067/reviews) | **[4.2 (42 ratings)](https://appshunter.io/ios/app/034spi/id6468930588/reviews)** |
| Number of ratings | 2 | **42** |
| Positive reviews | **76.5% of reviews** | 55.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 22 MB | 124 MB |
| Requires iOS | **12.0** | 12.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Ultimate9](https://appshunter.io/developer/1550725069) | [034motorsport Industries, LLC](https://appshunter.io/developer/1699254218) |

## What reviewers say

### Ultimate9 TC

[App page](https://appshunter.io/ios/app/ultimate9-tc/id1550725067)

This application connects to intelligent car hardware to enhance the driving experience. It unlocks new levels of driving fun by controlling the accelerator.

**Highlights:** Connects to intelligent car hardware, Controls car accelerator, Enhances driving fun, User-friendly interface

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Ultimate9 TC free?

Ultimate9 TC is free to download, with no in-app purchases.

### Is 034SPI free?

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

### Which has better reviews, Ultimate9 TC or 034SPI?

034SPI is rated higher. Ultimate9 TC averages 3.0 out of 5 from 2 ratings, while 034SPI averages 4.2 from 42 ratings.

### Do Ultimate9 TC or 034SPI have ads?

Neither Ultimate9 TC nor 034SPI shows ads.

### Which is updated more often, Ultimate9 TC or 034SPI?

Ultimate9 TC ships an update every 6 weeks, and 034SPI every 2 weeks. Most recently, Ultimate9 TC was updated on October 8, 2026 and 034SPI on October 16, 2026.

---

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