# Soler Prf vs ShiftySpec Gauge Configuration

The clearest difference is rating: ShiftySpec Gauge Configuration at 5.0 against Soler Prf's 4.5. ShiftySpec Gauge Configuration also leads on update cadence (every 4 weeks vs every 12 months). Soler Prf's advantage is ratings volume (13 vs 2) and iOS requirement (12.0 vs 15.0). 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.

ShiftySpec Gauge Configuration holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Soler Prf has 13 ratings behind it against 2, so its average is the more settled of the two.

Soler Prf ships an update every 12 months, ShiftySpec Gauge Configuration every 4 weeks. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Soler Prf | ShiftySpec Gauge Configuration |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (13 ratings)](https://appshunter.io/ios/app/soler-prf/id1565066919/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/shiftyspec-gauge-configuration/id6744992635/reviews)** |
| Number of ratings | **13** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 33 MB | 24 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DLX](https://appshunter.io/developer/1565066921) | [ShiftySpec](https://appshunter.io/developer/1810350016) |

## What reviewers say

### 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


### ShiftySpec Gauge Configuration

[App page](https://appshunter.io/ios/app/shiftyspec-gauge-configuration/id6744992635)

Customize your ShiftySpec Gauge with this app. Fine-tune visual and audible alarms for various vehicle metrics like temperature and pressure. Upload custom backgrounds for a personalized display, all controlled wirelessly via Bluetooth.

**Highlights:** Wireless configuration via Bluetooth LE, Custom visual and audible alarms, Set notification thresholds, Upload custom background images, CANBUS vehicle communication support

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

**In-app purchases:** none


## Frequently asked questions

### Is Soler Prf free?

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

### Is ShiftySpec Gauge Configuration free?

ShiftySpec Gauge Configuration is free to download, with no in-app purchases.

### Which has better reviews, Soler Prf or ShiftySpec Gauge Configuration?

ShiftySpec Gauge Configuration is rated higher. Soler Prf averages 4.5 out of 5 from 13 ratings, while ShiftySpec Gauge Configuration averages 5.0 from 2 ratings.

### Do Soler Prf or ShiftySpec Gauge Configuration have ads?

Neither Soler Prf nor ShiftySpec Gauge Configuration shows ads.

### Which is updated more often, Soler Prf or ShiftySpec Gauge Configuration?

Soler Prf ships an update every 12 months, and ShiftySpec Gauge Configuration every 4 weeks. Most recently, Soler Prf was updated on October 22, 2026 and ShiftySpec Gauge Configuration on October 14, 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.*