# Gauge King vs iThrottle BTX

The clearest difference is in-app purchases: iThrottle BTX at none against Gauge King's 1. iThrottle BTX also leads on iOS requirement (15.6 vs 17.2). Gauge King's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Gauge King sells 1 in-app purchase, starting at $9.99 per year. iThrottle BTX asks for nothing beyond the download.

Gauge King ships an update weekly, iThrottle BTX every 2 months. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Gauge King | iThrottle BTX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Size | 12 MB | 31 MB |
| Requires iOS | 17.2 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mark Ross](https://appshunter.io/developer/1885041786) | [iThrottle Australia Pty Ltd](https://appshunter.io/developer/6797408323) |

## What reviewers say

### Gauge King

[App page](https://appshunter.io/ios/app/gauge-king/id6777585502)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gauge King Premium | $9.99 | per year |


### iThrottle BTX

[App page](https://appshunter.io/ios/app/ithrottle-btx/id6797407931)

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

**In-app purchases:** none


## Frequently asked questions

### Is Gauge King free?

Gauge King is free to download, with in-app purchases available.

### Is iThrottle BTX free?

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

### Do Gauge King or iThrottle BTX have ads?

Neither Gauge King nor iThrottle BTX shows ads.

### Which is updated more often, Gauge King or iThrottle BTX?

Gauge King ships an update weekly, and iThrottle BTX every 2 months. Most recently, Gauge King was updated on November 13, 2026 and iThrottle BTX on November 10, 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.*