# RT60 vs WOW Filterbox

The clearest difference is price: WOW Filterbox at Free against RT60's $34.99. WOW Filterbox also leads on rating (4.6 vs 3.4) and ratings volume (29 vs 5). RT60's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On review sentiment, update cadence and ads there is nothing between them.

WOW Filterbox is free to download; RT60 costs $34.99 up front. WOW Filterbox sells 1 one-off in-app purchase. RT60 asks for nothing beyond the download.

WOW Filterbox holds the better App Store score, 4.6 against 3.4. That said, the two scores are not equally well evidenced: WOW Filterbox has 29 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 67% of RT60's written reviews are positive against 64% of WOW Filterbox's, so the app with the better star average is not the one people write more warmly about.

RT60 ships an update every 6 months, WOW Filterbox every 4 months. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | RT60 | WOW Filterbox |
| --- | --- | --- |
| Price | $34.99 | **Free** |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/rt60/id298840320/reviews) | **[4.6 (29 ratings)](https://appshunter.io/ios/app/wow-filterbox/id666864434/reviews)** |
| Number of ratings | 5 | **29** |
| Positive reviews | **66.7% of reviews** | 64.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 27 MB | 83 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [Sugar Bytes GmbH](https://appshunter.io/developer/614418826) |

## What reviewers say

### RT60

[App page](https://appshunter.io/ios/app/rt60/id298840320)

This tool measures reverb decay time across octave bands using pink noise. It conforms to ISO 3382 standards for room acoustics and can display results from 50ms to 4 seconds. Save measurement graphs for reports.

**Highlights:** Measures reverb decay time, Octave band analysis (63Hz - 4kHz), Conforms to ISO 3382 standard, T20 and T30 measurement methods, Adjustable decay time range (50ms - 4s), Save measurement graphs, Microphone calibration

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

**In-app purchases:** none


### WOW Filterbox

[App page](https://appshunter.io/ios/app/wow-filterbox/id666864434)

This app offers a creative multi-filterbox with 21 filter types, analog and digital distortions, and powerful modulation options. It includes an integrated player and recorder, XY-pads for parameter control, and supports MIDI and Ableton Link.

**Highlights:** 21 filter types, Analog and digital distortion, Step sequencer & wobble generator, LFO with multiple waveforms, XY-Pads for parameter control, Integrated player and recorder, MIDI support & Ableton Link

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WOW Full Version | $19.99 | one-time |


## Frequently asked questions

### Is RT60 free?

RT60 costs $34.99, with no in-app purchases.

### Is WOW Filterbox free?

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

### Which has better reviews, RT60 or WOW Filterbox?

WOW Filterbox is rated higher. RT60 averages 3.4 out of 5 from 5 ratings, while WOW Filterbox averages 4.6 from 29 ratings.

### Do RT60 or WOW Filterbox have ads?

Neither RT60 nor WOW Filterbox shows ads.

### Which is updated more often, RT60 or WOW Filterbox?

RT60 ships an update every 6 months, and WOW Filterbox every 4 months. Most recently, RT60 was updated on September 21, 2026 and WOW Filterbox on September 19, 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.*