# Flynth vs M.ETRO

The clearest difference is in-app purchases: M.ETRO at none against Flynth's 1. M.ETRO also leads on update cadence (every 3 days vs every 4 months) and iOS requirement (9.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Flynth sells 1 one-off in-app purchase. M.ETRO asks for nothing beyond the download.

Flynth ships an update every 4 months, M.ETRO every 3 days. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Flynth | M.ETRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (55 ratings)](https://appshunter.io/ios/app/flynth-synth-and-arpeggiator/id1509714513/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 17 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fingerlab](https://appshunter.io/developer/412786610) | [Paolo Giorgi](https://appshunter.io/developer/1481916003) |

## What reviewers say

### Flynth

[App page](https://appshunter.io/ios/app/flynth-synth-and-arpeggiator/id1509714513)

This versatile synthesizer app offers a wide range of sounds from leads to bass and pads. Create unique sounds by tweaking parameters or explore factory presets. It supports MIDI input, AudioUnit integration, and includes a built-in arpeggiator and effects for music production.

**Highlights:** 8-voice polyphony, 3 Oscillators with pulse width and sub, ADSR Envelope editor, Low-pass Filter with ADSR, 2 configurable LFOs, Build-in Arpeggiator, 4 FXs (TubeAmp, Phaser, Delay, reverb), Live recording + export

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $7.99 | one-time |


### M.ETRO

[App page](https://appshunter.io/ios/app/metro/id1543955749)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flynth free?

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

### Is M.ETRO free?

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

### Do Flynth or M.ETRO have ads?

Neither Flynth nor M.ETRO shows ads.

### Which is updated more often, Flynth or M.ETRO?

Flynth ships an update every 4 months, and M.ETRO every 3 days. Most recently, Flynth was updated on October 29, 2026 and M.ETRO 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.*