# voice range checker vs GSDSP MMMm

The clearest difference is review sentiment: GSDSP MMMm at 100% against voice range checker's 24%. GSDSP MMMm also leads on rating (4.9 vs 1.0) and update cadence (every 5 weeks vs every 14 months). voice range checker's advantage is iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GSDSP MMMm holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: GSDSP MMMm has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 24% of voice range checker's written reviews are positive against 100% of GSDSP MMMm's.

voice range checker ships an update every 14 months, GSDSP MMMm every 5 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | voice range checker | GSDSP MMMm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/voice-range-checker/id587260960/reviews) | **[4.9 (16 ratings)](https://appshunter.io/ios/app/gsdsp-mmmm/id6450306205/reviews)** |
| Number of ratings | 1 | **16** |
| Positive reviews | 24.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 44 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CRI Middleware Co., Ltd.](https://appshunter.io/developer/320970225) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### voice range checker

[App page](https://appshunter.io/ios/app/voice-range-checker/id587260960)

This app analyzes your voice through your device's microphone to identify your highest and lowest vocal pitches. Share your vocal range results via email or Twitter.

**Highlights:** Check highest voice pitch, Check lowest voice pitch, Uses device microphone, Share results via email, Post results on Twitter

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

**In-app purchases:** none


### GSDSP MMMm

[App page](https://appshunter.io/ios/app/gsdsp-mmmm/id6450306205)

This app provides a powerful MIDI modulation engine to control various plugins, hardware, and instruments. It offers a range of modulation sources like LFOs and random generators, and includes a dedicated performance skin for live use. It's a MIDI-only FX version for hosts requiring pure MIDI processing.

**Highlights:** MIDI CC control for plugins and hardware, LFO, Random, Envelope Follower modulators, XY pads for modulation, Dedicated Performance Skin for live use, AUv3 MIDI FX plugin, Desktop versions available

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

**In-app purchases:** none


## Frequently asked questions

### Is voice range checker free?

voice range checker is free to download, with no in-app purchases.

### Is GSDSP MMMm free?

GSDSP MMMm is free to download, with no in-app purchases.

### Which has better reviews, voice range checker or GSDSP MMMm?

GSDSP MMMm is rated higher. voice range checker averages 1.0 out of 5 from 1 ratings, while GSDSP MMMm averages 4.9 from 16 ratings.

### Do voice range checker or GSDSP MMMm have ads?

Neither voice range checker nor GSDSP MMMm shows ads.

### Which is updated more often, voice range checker or GSDSP MMMm?

voice range checker ships an update every 14 months, and GSDSP MMMm every 5 weeks. Most recently, voice range checker was updated on November 1, 2026 and GSDSP MMMm on November 3, 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.*