# SynthMaster One for iPhone vs Flynth

The clearest difference is rating: SynthMaster One for iPhone at 4.7 against Flynth's 4.3. SynthMaster One for iPhone also leads on review sentiment (63% vs 50%) and update cadence (every 2 months vs every 4 months). Flynth's advantage is device support (4 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SynthMaster One for iPhone sells 10 one-off in-app purchases and Flynth sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SynthMaster One for iPhone holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: SynthMaster One for iPhone has 335 ratings behind it against 55, so its average is the more settled of the two. Written reviews point the same way: 63% of SynthMaster One for iPhone's written reviews are positive against 50% of Flynth's.

SynthMaster One for iPhone ships an update every 2 months, Flynth every 4 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SynthMaster One for iPhone | Flynth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (335 ratings)](https://appshunter.io/ios/app/synthmaster-one-for-iphone/id1490902617/reviews)** | [4.3 (55 ratings)](https://appshunter.io/ios/app/flynth-synth-and-arpeggiator/id1509714513/reviews) |
| Number of ratings | **335** | 55 |
| Positive reviews | **63.1% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 297 MB | 17 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [KV331 Audio](https://appshunter.io/developer/944155925) | [Fingerlab](https://appshunter.io/developer/412786610) |

## What reviewers say

### SynthMaster One for iPhone

[App page](https://appshunter.io/ios/app/synthmaster-one-for-iphone/id1490902617)

This powerful wavetable synthesizer app offers an intuitive workflow for creating new sounds. It features a rich library of wavetables, inspiring factory presets, and real-time modulation feedback for sound design.

**Highlights:** Wavetable synthesis, 300 factory presets, AUv3 support, Files App integration, Real-time modulation feedback, Semi-modular architecture, 32-step arpeggiator/sequencer

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BigTone Club Construction Set | $4.99 | one-time |
| True Trance Sounds Volume 1 | $4.99 | one-time |
| Vandalism Future House | $4.99 | one-time |
| NatLife Retrowave Sounds Vol.1 | $4.99 | one-time |
| Demis Hellen Euphoric Trance | $4.99 | one-time |
| NatLife Progressive&Deep Vol.1 | $4.99 | one-time |
| Vandalism Shocking Future Bass | $4.99 | one-time |
| Venus Theory Trap Sounds | $4.99 | one-time |
| Desktop Presets Upgrade | $9.99 | one-time |
| SM One Expansions Bundle | $24.99 | one-time |

**What reviewers like**

- ✨ Excellent sound quality
- 🤩 Incredible features for free
- 👍 Easy to use interface
- 🎛️ Versatile sound design capabilities
- 🎵 Great for GarageBand integration

**What reviewers complain about**

- 🐛 Frequent crashes
- 🔌 Issues with GarageBand integration
- 💸 In-app purchase problems
- 🔄 Presets not saving
- 📉 App appears abandoned

**Reported bugs**

- App crashes when loading saved presets
- App crashes when setting default sound
- AUv3 option disappears in GarageBand
- Inability to reload user patches without crashing
- Inability to purchase certain IAP packs

**Requested features**

- Fix in-app purchase issues
- Improve GarageBand AUv3 stability
- Enable saving of custom presets
- Address crashing when loading presets
- Fix note pitch issues


### 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 |


## Frequently asked questions

### Is SynthMaster One for iPhone free?

SynthMaster One for iPhone is free to download, with in-app purchases available.

### Is Flynth free?

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

### Which has better reviews, SynthMaster One for iPhone or Flynth?

SynthMaster One for iPhone is rated higher. SynthMaster One for iPhone averages 4.7 out of 5 from 335 ratings, while Flynth averages 4.3 from 55 ratings.

### Do SynthMaster One for iPhone or Flynth have ads?

Neither SynthMaster One for iPhone nor Flynth shows ads.

### Which is updated more often, SynthMaster One for iPhone or Flynth?

SynthMaster One for iPhone ships an update every 2 months, and Flynth every 4 months. Most recently, SynthMaster One for iPhone was updated on November 7, 2026 and Flynth 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.*