# Sonic Synth vs SynthMaster One

The clearest difference is review sentiment: SynthMaster One at 64% against Sonic Synth's 0%. SynthMaster One also leads on rating (4.7 vs 3.0) and ratings volume (743 vs 1). Sonic Synth's advantage is price ($1.99 vs $9.99) and in-app purchases (none vs 11). On ads, device support and iOS requirement there is nothing between them.

Sonic Synth costs $1.99 and SynthMaster One $9.99 up front. SynthMaster One sells 11 one-off in-app purchases. Sonic Synth asks for nothing beyond the download.

SynthMaster One holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: SynthMaster One has 743 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Sonic Synth's written reviews are positive against 64% of SynthMaster One's.

Sonic Synth ships an update every 6 months, SynthMaster One every 2 months. The most recent releases landed on August 14, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Sonic Synth | SynthMaster One |
| --- | --- | --- |
| Price | **$1.99** | $9.99 |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/sonic-synth-fm-synthesizer/id1104940736/reviews) | **[4.7 (743 ratings)](https://appshunter.io/ios/app/synthmaster-one/id1254353266/reviews)** |
| Number of ratings | 1 | **743** |
| Positive reviews | 0.0% of reviews | **63.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 402 MB |
| Requires iOS | 10.0 | 10.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [KV331 Audio](https://appshunter.io/developer/944155925) |

## What reviewers say

### Sonic Synth

[App page](https://appshunter.io/ios/app/sonic-synth-fm-synthesizer/id1104940736)

Create a wide variety of sounds with this FM synthesizer app. It features three independent oscillators, each capable of generating four unique waveforms, and offers a responsive touch keyboard for real-time performance. Enjoy high-quality audio with a 44100 Hz sample rate.

**Highlights:** 3 independent oscillators, 4 waveform types per oscillator, Volume, modulation, tone, and detune controls, Envelope filters (attack, sustain, release), Multitouch support, Responsive piano keyboard, Core MIDI support

**Features:** Vision Pro support

**In-app purchases:** none


### SynthMaster One

[App page](https://appshunter.io/ios/app/synthmaster-one/id1254353266)

This powerful wavetable synthesizer app offers an intuitive workflow for creating unique sounds. It features a rich library of wavetables, inspiring presets, and a semi-modular architecture for deep sound design. Easily sync data across devices and integrate with DAWs.

**Highlights:** Wavetable synthesis, Semi-modular architecture, 650 factory presets, AUv3 support, Cross-platform cloud sync, Real-time modulation feedback, 32-step arpeggiator/sequencer

**In-app purchases (11)**

| 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 |
| Venus Theory Trap Sounds | $4.99 | one-time |
| Vandalism Shocking Future Bass | $4.99 | one-time |
| NatLife Progressive&Deep Vol.1 | $4.99 | one-time |
| Bluffmunkey Cinematic Sounds | $4.99 | one-time |
| Desktop Presets Upgrade | $7.99 | one-time |
| SM One Expansions Bundle | $24.99 | one-time |

**What reviewers like**

- 🚀 Powerful synth engine
- 👍 Extensive preset library
- 🎨 Versatile sound design capabilities
- 💡 Free desktop version expansions on iPad
- 🎹 Excellent sound quality and tone

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🔋 Battery drain in background
- 🤔 Confusing in-app purchase system
- 👎 UI/UX could use improvement
- 🔇 Audio issues and no sound

**Reported bugs**

- Stuck notes and MIDI issues
- Preset loading crashes
- Restore purchases not working
- Incompatibility with certain DAWs

**Requested features**

- Add custom wavetable support
- Improve MIDI mapping and MPE functionality
- Optimize performance on older devices
- Streamline preset management and browsing


## Frequently asked questions

### Is Sonic Synth free?

Sonic Synth costs $1.99, with no in-app purchases.

### Is SynthMaster One free?

SynthMaster One costs $9.99, and also offers in-app purchases.

### Which has better reviews, Sonic Synth or SynthMaster One?

SynthMaster One is rated higher. Sonic Synth averages 3.0 out of 5 from 1 ratings, while SynthMaster One averages 4.7 from 743 ratings.

### Do Sonic Synth or SynthMaster One have ads?

Neither Sonic Synth nor SynthMaster One shows ads.

### Which is updated more often, Sonic Synth or SynthMaster One?

Sonic Synth ships an update every 6 months, and SynthMaster One every 2 months. Most recently, Sonic Synth was updated on August 14, 2026 and SynthMaster One on September 22, 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.*