# Ultimate9 TC vs Soler Prf

The clearest difference is rating: Soler Prf at 4.5 against Ultimate9 TC's 3.0. Soler Prf also leads on ratings volume (8 vs 2). Ultimate9 TC's advantage is update cadence (every 6 weeks vs every 12 months) and review sentiment (76% vs 50%). 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.

Soler Prf holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews complicate that: 76% of Ultimate9 TC's written reviews are positive against 50% of Soler Prf'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, Soler Prf every 12 months. The most recent releases landed on September 22, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | Ultimate9 TC | Soler Prf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/ultimate9-tc/id1550725067/reviews) | **[4.5 (8 ratings)](https://appshunter.io/ios/app/soler-prf/id1565066919/reviews)** |
| Number of ratings | 2 | **8** |
| Positive reviews | **76.5% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 12 months |
| Monetization | Free | Free |
| Size | 22 MB | 33 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Ultimate9](https://appshunter.io/developer/1550725069) | [DLX](https://appshunter.io/developer/1565066921) |

## 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


### Soler Prf

[App page](https://appshunter.io/ios/app/soler-prf/id1565066919)

This app offers advanced control over your vehicle's throttle response. Choose from multiple driving modes and acceleration levels, or let AI adapt to your driving style. It includes features for transmission type, locking, resetting, and password protection.

**Highlights:** Nine driving modes, Nine acceleration levels per mode, AI learning mode, Transmission type selection, Lock/unlock functionality, Password protection

**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 Soler Prf free?

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

### Which has better reviews, Ultimate9 TC or Soler Prf?

Soler Prf is rated higher. Ultimate9 TC averages 3.0 out of 5 from 2 ratings, while Soler Prf averages 4.5 from 8 ratings.

### Do Ultimate9 TC or Soler Prf have ads?

Neither Ultimate9 TC nor Soler Prf shows ads.

### Which is updated more often, Ultimate9 TC or Soler Prf?

Ultimate9 TC ships an update every 6 weeks, and Soler Prf every 12 months. Most recently, Ultimate9 TC was updated on September 22, 2026 and Soler Prf on July 5, 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.*