# M vs Frequency Sound Wave Generator

The clearest difference is review sentiment: Frequency Sound Wave Generator at 90% against M's 38%. Frequency Sound Wave Generator also leads on rating (4.7 vs 2.5) and ratings volume (87 vs 21). M's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Frequency Sound Wave Generator sells 3 in-app purchases, starting at $1.99 per month. M asks for nothing beyond the download.

Frequency Sound Wave Generator holds the better App Store score, 4.7 against 2.5. Both are backed by a comparable volume of ratings — 21 and 87 respectively. Written reviews point the same way: 38% of M's written reviews are positive against 90% of Frequency Sound Wave Generator's.

M ships an update every 2 weeks, Frequency Sound Wave Generator monthly. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | M | Frequency Sound Wave Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (21 ratings)](https://appshunter.io/ios/app/m-efcs/id6470352068/reviews) | **[4.7 (87 ratings)](https://appshunter.io/ios/app/frequency-sound-wave-generator/id6478711398/reviews)** |
| Number of ratings | 21 | **87** |
| Positive reviews | 38.0% of reviews | **90.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 237 MB | 169 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Sinco Audio](https://appshunter.io/developer/1576180489) | [David Krejci](https://appshunter.io/developer/1737377675) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-efcs/id6470352068)

This app offers comprehensive control over guitar effects pedals. Users can manage impulse responses (IRs), reverb, delay, modulation, amplifier simulations, and noise gates to shape their sound.

**Highlights:** IR switching for cabinet simulation, Extensive reverb effects, Customizable delay settings, Various modulation effects, Amplifier sound simulation, Noise gate for clean sound

**In-app purchases:** none


### Frequency Sound Wave Generator

[App page](https://appshunter.io/ios/app/frequency-sound-wave-generator/id6478711398)

Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.

**Highlights:** Single and multiple frequency generation, Musical notes presets, Binaural beats, SFX sound generator, Sweep generator, Bass/Subwoofer sound test, DTMF tones

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly PRO subscription | $1.99 | per month |
| Yearly Pro Membership | $9.99 | per year |
| Lifetime PRO membership | $19.99 | one-time |


## Frequently asked questions

### Is M free?

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

### Is Frequency Sound Wave Generator free?

Frequency Sound Wave Generator is free to download, with in-app purchases available.

### Which has better reviews, M or Frequency Sound Wave Generator?

Frequency Sound Wave Generator is rated higher. M averages 2.5 out of 5 from 21 ratings, while Frequency Sound Wave Generator averages 4.7 from 87 ratings.

### Do M or Frequency Sound Wave Generator have ads?

Frequency Sound Wave Generator shows ads; M does not.

### Which is updated more often, M or Frequency Sound Wave Generator?

M ships an update every 2 weeks, and Frequency Sound Wave Generator monthly. Most recently, M was updated on October 20, 2026 and Frequency Sound Wave Generator on October 21, 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.*