# TB GonioMeter vs PocketMaster Audio Mastering

The clearest difference is in-app purchases: TB GonioMeter at none against PocketMaster Audio Mastering's 2. TB GonioMeter also leads on iOS requirement (13.0 vs 15.0). PocketMaster Audio Mastering's advantage is update cadence (every 2 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. PocketMaster Audio Mastering sells 2 in-app purchases, starting at $6.99 per month. TB GonioMeter asks for nothing beyond the download.

TB GonioMeter ships an update every 2 months, PocketMaster Audio Mastering every 2 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | TB GonioMeter | PocketMaster Audio Mastering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (22 ratings)](https://appshunter.io/ios/app/tb-goniometer/id6444903624/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 11 MB | 38 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ToneBoosters](https://appshunter.io/developer/1472446500) | [NICLAS FREDRIKSSON](https://appshunter.io/developer/6804219766) |

## What reviewers say

### TB GonioMeter

[App page](https://appshunter.io/ios/app/tb-goniometer/id6444903624)

Analyze stereo image imbalances and frequency correlations in real-time. Ensure your audio content is high quality and compatible with mono down-mixes, crucial for mobile entertainment. This tool offers detailed waveform inspection and balance spectrum analysis.

**Highlights:** Real-time goniometer for stereo image waveforms, Real-time correlation meter and spectrum, Real-time stereo balance and spectrum meter, Color themes for UI, Mono down-mix compatibility check, Optimized for iPad, compatible with iPhone/iPod Touch

**In-app purchases:** none


### PocketMaster Audio Mastering

[App page](https://appshunter.io/ios/app/pocketmaster-audio-mastering/id6804219764)

**Features:** iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $6.99 | per month |
| Premium Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is TB GonioMeter free?

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

### Is PocketMaster Audio Mastering free?

PocketMaster Audio Mastering is free to download, with in-app purchases available.

### Do TB GonioMeter or PocketMaster Audio Mastering have ads?

Neither TB GonioMeter nor PocketMaster Audio Mastering shows ads.

### Which is updated more often, TB GonioMeter or PocketMaster Audio Mastering?

TB GonioMeter ships an update every 2 months, and PocketMaster Audio Mastering every 2 days. Most recently, TB GonioMeter was updated on November 3, 2026 and PocketMaster Audio Mastering on November 6, 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.*