# EQ550b vs TB GonioMeter

The clearest difference is in-app purchases: TB GonioMeter at none against EQ550b's 1. EQ550b's advantage is update cadence (every 2 weeks vs every 2 months) and rating (4.8 vs 4.6). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. EQ550b sells 1 one-off in-app purchase. TB GonioMeter asks for nothing beyond the download.

EQ550b holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 13 and 23 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

EQ550b ships an update every 2 weeks, TB GonioMeter every 2 months. The most recent releases landed on September 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | EQ550b | TB GonioMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/eq550b/id1507176549/reviews)** | [4.6 (23 ratings)](https://appshunter.io/ios/app/tb-goniometer/id6444903624/reviews) |
| Number of ratings | 13 | **23** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 11 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RRS, OOO](https://appshunter.io/developer/1486125568) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### EQ550b

[App page](https://appshunter.io/ios/app/eq550b/id1507176549)

This audio effect plugin emulates a classic American equalizer from the late 1960s, offering four bands of equalization with selectable frequencies and proportional Q. It provides a wide range of tonal variations for professional audio manipulation and can be used as a standalone app or an AUv3 plugin.

**Highlights:** Modeled vintage EQ, Four bands of equalization, Selectable frequency centers, Proportional Q filter, Stereo, Mid, or Side EQ modes, AUv3 plugin compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS EQ550b Unlimited | $4.99 | one-time |


### 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


## Frequently asked questions

### Is EQ550b free?

EQ550b is free to download, with in-app purchases available.

### Is TB GonioMeter free?

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

### Which has better reviews, EQ550b or TB GonioMeter?

EQ550b is rated higher. EQ550b averages 4.8 out of 5 from 13 ratings, while TB GonioMeter averages 4.6 from 23 ratings.

### Do EQ550b or TB GonioMeter have ads?

Neither EQ550b nor TB GonioMeter shows ads.

### Which is updated more often, EQ550b or TB GonioMeter?

EQ550b ships an update every 2 weeks, and TB GonioMeter every 2 months. Most recently, EQ550b was updated on September 1, 2026 and TB GonioMeter on September 8, 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.*