# SimplyFlange vs GSDSP MMM

The clearest difference is price: GSDSP MMM at Free against SimplyFlange's $0.99. GSDSP MMM also leads on ratings volume (36 vs 1) and iOS requirement (13.0 vs 16.6). SimplyFlange's advantage is review sentiment (100% vs 67%) and rating (5.0 vs 4.7). On ads, in-app purchases and device support there is nothing between them.

GSDSP MMM is free to download; SimplyFlange costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SimplyFlange holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: GSDSP MMM has 36 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of SimplyFlange's written reviews are positive against 67% of GSDSP MMM's.

SimplyFlange ships an update every 9 days, GSDSP MMM every 5 weeks. The most recent releases landed on October 4, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | SimplyFlange | GSDSP MMM |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simplyflange/id1554960150/reviews)** | [4.7 (36 ratings)](https://appshunter.io/ios/app/gsdsp-mmm/id6443846329/reviews) |
| Number of ratings | 1 | **36** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 weeks |
| Monetization | Paid | **Free** |
| Size | 5 MB | 65 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brad Howes](https://appshunter.io/developer/430573224) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### SimplyFlange

[App page](https://appshunter.io/ios/app/simplyflange/id1554960150)

This audio effect app provides a straightforward flange effect for a retro sound. It functions as an AUv3 app extension, compatible with hosts like AUM, Cubasis, and GarageBand.

**Highlights:** Retro flange audio effect, AUv3 app extension, Compatible with AUM, Cubasis, GarageBand, Standalone app functionality, Simple and straightforward interface

**Features:** Vision Pro support

**In-app purchases:** none


### GSDSP MMM

[App page](https://appshunter.io/ios/app/gsdsp-mmm/id6443846329)

This app offers a robust MIDI modulation engine for controlling various instruments and plugins. It allows users to create dynamic audio with LFOs, random sources, and more, featuring a performance-focused interface for live use.

**Highlights:** MIDI CC control for plugins and hardware, LFOs, random sources, and envelope followers, Audio-based modulation capabilities, Dedicated Performance Skin for live use, AUv3 audio effect plugin, Desktop versions for Windows and macOS

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

**In-app purchases:** none


## Frequently asked questions

### Is SimplyFlange free?

SimplyFlange costs $0.99, with no in-app purchases.

### Is GSDSP MMM free?

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

### Which has better reviews, SimplyFlange or GSDSP MMM?

SimplyFlange is rated higher. SimplyFlange averages 5.0 out of 5 from 1 ratings, while GSDSP MMM averages 4.7 from 36 ratings.

### Do SimplyFlange or GSDSP MMM have ads?

Neither SimplyFlange nor GSDSP MMM shows ads.

### Which is updated more often, SimplyFlange or GSDSP MMM?

SimplyFlange ships an update every 9 days, and GSDSP MMM every 5 weeks. Most recently, SimplyFlange was updated on October 4, 2026 and GSDSP MMM on October 27, 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.*