# RevMeter Pro vs Audio Tone Generator Plus

The clearest difference is iOS requirement: RevMeter Pro at 17.6 against Audio Tone Generator Plus's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

RevMeter Pro costs $6.99 and Audio Tone Generator Plus $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RevMeter Pro ships an update every 4 months, Audio Tone Generator Plus every 6 months. The most recent releases landed on September 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | RevMeter Pro | Audio Tone Generator Plus |
| --- | --- | --- |
| Price | $6.99 | $6.99 |
| Rating | **[2.2 (5 ratings)](https://appshunter.io/ios/app/revmeter-pro/id357421594/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 26.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Paid | — |
| Size | 7 MB | 1 MB |
| Requires iOS | **17.6** | 26.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Matthias Schorer](https://appshunter.io/developer/290579382) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## What reviewers say

### RevMeter Pro

[App page](https://appshunter.io/ios/app/revmeter-pro/id357421594)

This app measures the reverberation time (RT60) of any room using your iPhone. It offers dual measurement modes and calculates RT60 based on RT20 and RT30 decay slopes. Easily export data and visualize acoustic analysis.

**Highlights:** Measures reverberation time (RT60), Dual measurement modes (Impulse, Interrupted Noise), Calculates RT60 using RT20/RT30 standards, Data export (CSV, Screenshots), Visual decay curves and spectrograms

**In-app purchases:** none


### Audio Tone Generator Plus

[App page](https://appshunter.io/ios/app/audio-tone-generator-plus/id1619042820)

**In-app purchases:** none


## Frequently asked questions

### Is RevMeter Pro free?

RevMeter Pro costs $6.99, with no in-app purchases.

### Is Audio Tone Generator Plus free?

Audio Tone Generator Plus costs $6.99, with no in-app purchases.

### Do RevMeter Pro or Audio Tone Generator Plus have ads?

Neither RevMeter Pro nor Audio Tone Generator Plus shows ads.

### Which is updated more often, RevMeter Pro or Audio Tone Generator Plus?

RevMeter Pro ships an update every 4 months, and Audio Tone Generator Plus every 6 months. Most recently, RevMeter Pro was updated on September 13, 2026 and Audio Tone Generator Plus on October 12, 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.*