# 123\Tune+ vs MultiGauge

The clearest difference is rating: 123\Tune+ at 4.5 against MultiGauge's 1.0. 123\Tune+ also leads on review sentiment (58% vs 17%) and ratings volume (242 vs 4). MultiGauge's advantage is iOS requirement (12.1 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

123\Tune+ holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: 123\Tune+ has 242 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 58% of 123\Tune+'s written reviews are positive against 17% of MultiGauge's.

123\Tune+ ships an update every 3 weeks, MultiGauge fortnightly. The most recent releases landed on September 11, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | 123\Tune+ | MultiGauge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (242 ratings)](https://appshunter.io/ios/app/123tune-plus/id890882601/reviews)** | [1.0 (4 ratings)](https://appshunter.io/ios/app/multigauge/id1160471122/reviews) |
| Number of ratings | **242** | 4 |
| Positive reviews | **58.3% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 209 MB | 10 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Albertronic B.V.](https://appshunter.io/developer/890882604) | [PLX Devices, INC.](https://appshunter.io/developer/388327605) |

## What reviewers say

### 123\Tune+

[App page](https://appshunter.io/ios/app/123tune-plus/id890882601)

Control your classic car's ignition wirelessly via Bluetooth. Adjust advance and vacuum curves, monitor real-time engine data, and utilize features like a PIN-code immobilizer and rev limiter. Compatible with a wide range of classic vehicles.

**Highlights:** Wireless ignition curve adjustment, Real-time engine data monitoring, PIN-code immobilizer, Soft rev limiter, Tune mode for timing tests, MAP/boost sensor support

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

**In-app purchases:** none


### MultiGauge

[App page](https://appshunter.io/ios/app/multigauge/id1160471122)

This application connects to specific hardware to display real-time sensor data from your vehicle on your smartphone. Monitor vital engine parameters like air-fuel ratio, temperature, and pressure for performance tuning and diagnostics.

**Highlights:** Real-time sensor data display, Bluetooth LE connectivity, Supports multiple sensor modules, Visualizes engine parameters, Compatible with PLX Devices hardware

**In-app purchases:** none


## Frequently asked questions

### Is 123\Tune+ free?

123\Tune+ is free to download, with no in-app purchases.

### Is MultiGauge free?

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

### Which has better reviews, 123\Tune+ or MultiGauge?

123\Tune+ is rated higher. 123\Tune+ averages 4.5 out of 5 from 242 ratings, while MultiGauge averages 1.0 from 4 ratings.

### Do 123\Tune+ or MultiGauge have ads?

Neither 123\Tune+ nor MultiGauge shows ads.

### Which is updated more often, 123\Tune+ or MultiGauge?

123\Tune+ ships an update every 3 weeks, and MultiGauge fortnightly. Most recently, 123\Tune+ was updated on September 11, 2026 and MultiGauge on June 11, 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.*