# Reverb Time Analyzer vs WispPGP

The clearest difference is rating: WispPGP at 4.3 against Reverb Time Analyzer's 1.0. WispPGP also leads on update cadence (every 2 weeks vs every 8 months) and price ($3.99 vs $6.99). Reverb Time Analyzer's advantage is review sentiment (100% vs 75%). On ads, in-app purchases, monetization model and device support there is nothing between them.

Reverb Time Analyzer costs $6.99 and WispPGP $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

WispPGP holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews complicate that: 100% of Reverb Time Analyzer's written reviews are positive against 75% of WispPGP's, so the app with the better star average is not the one people write more warmly about.

Reverb Time Analyzer ships an update every 8 months, WispPGP every 2 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Reverb Time Analyzer | WispPGP |
| --- | --- | --- |
| Price | $6.99 | **$3.99** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/reverb-time-analyzer/id6497171936/reviews) | **[4.3 (3 ratings)](https://appshunter.io/ios/app/wisppgp/id6757249850/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 1 MB | 17 MB |
| Requires iOS | 26.2 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [Marco Janssen](https://appshunter.io/developer/787863348) |

## What reviewers say

### Reverb Time Analyzer

[App page](https://appshunter.io/ios/app/reverb-time-analyzer/id6497171936)

This acoustic analysis tool measures room reverberation time using an interrupted noise method. It provides detailed analysis of sound decay, including RT30/RT20, RT60, and octave-band spectrograms. Ideal for optimizing listening environments and identifying acoustic issues.

**Highlights:** Reverberation time analysis (RT30/RT20, RT60), Interrupted noise method with white noise source, Octave-band spectrogram analysis, Background noise level measurement, Sound pressure level measurement, Sound recording and playback, Measurement error detection

**In-app purchases:** none


### WispPGP

[App page](https://appshunter.io/ios/app/wisppgp/id6757249850)

This app provides a focused toolkit for encrypting, decrypting, signing, and verifying text using OpenPGP standards. It allows for managing multiple key pairs and integrates with other apps via a share extension for secure communication.

**Highlights:** Encrypt and decrypt messages, Sign and verify messages, Generate and manage multiple key pairs, Set an active key, Share encrypted output as text or files, Use Share Extension for any app

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

**In-app purchases:** none


## Frequently asked questions

### Is Reverb Time Analyzer free?

Reverb Time Analyzer costs $6.99, with no in-app purchases.

### Is WispPGP free?

WispPGP costs $3.99, with no in-app purchases.

### Which has better reviews, Reverb Time Analyzer or WispPGP?

WispPGP is rated higher. Reverb Time Analyzer averages 1.0 out of 5 from 1 ratings, while WispPGP averages 4.3 from 3 ratings.

### Do Reverb Time Analyzer or WispPGP have ads?

Neither Reverb Time Analyzer nor WispPGP shows ads.

### Which is updated more often, Reverb Time Analyzer or WispPGP?

Reverb Time Analyzer ships an update every 8 months, and WispPGP every 2 weeks. Most recently, Reverb Time Analyzer was updated on November 8, 2026 and WispPGP on November 5, 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.*