# SynthMaster One for iPhone vs Soundfont Pro

The clearest difference is ads: SynthMaster One for iPhone at none against Soundfont Pro's shown. SynthMaster One for iPhone also leads on rating (4.8 vs 4.4) and review sentiment (66% vs 41%). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. SynthMaster One for iPhone sells 10 one-off in-app purchases and Soundfont Pro sells 35 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

SynthMaster One for iPhone holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 331 and 767 respectively. Written reviews point the same way: 66% of SynthMaster One for iPhone's written reviews are positive against 41% of Soundfont Pro's.

SynthMaster One for iPhone ships an update every 2 months, Soundfont Pro every 6 weeks. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | SynthMaster One for iPhone | Soundfont Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (331 ratings)](https://appshunter.io/ios/app/synthmaster-one-for-iphone/id1490902617/reviews)** | [4.4 (767 ratings)](https://appshunter.io/ios/app/soundfont-pro-synth-studio/id1631188357/reviews) |
| Number of ratings | 331 | **767** |
| Positive reviews | **66.0% of reviews** | 41.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 297 MB | 62 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KV331 Audio](https://appshunter.io/developer/944155925) | [TAQS.IM](https://appshunter.io/developer/1457405202) |

## 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


### Soundfont Pro

[App page](https://appshunter.io/ios/app/soundfont-pro-synth-studio/id1631188357)

This app is a powerful tool for musicians and producers to import, play, and customize piano SoundFonts. It offers built-in synthesizer tools, professional effects, and multi-layering capabilities for creating unique sounds. Seamlessly integrate with DAWs and MIDI keyboards for a professional music production experience.

**Highlights:** Import and play piano SoundFonts, Built-in synthesizer tools, Professional audio effects, Multi-layering and split sounds, MIDI keyboard support, AUv3 DAW integration, Save and share creations

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

**In-app purchases (35)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TAQS.IM Monthly PRO Access | $5.99 | per month |
| TAQS.IM Yearly Premium Access | $19.99 | per year |
| TAQS.IM Yearly PRO Access | $29.99 | per year |
| CZ-101 SP Essentials | $2.99 | one-time |
| DW8SP Digital Analog | $2.99 | one-time |
| DXSevn Legend | $2.99 | one-time |
| Accordions | $2.99 | one-time |
| Acoustic Bass | $2.99 | one-time |
| Acoustic Guitars | $2.99 | one-time |
| Brass Section | $2.99 | one-time |
| Acoustic Pianos | $2.99 | one-time |
| Brass Solo | $2.99 | one-time |
| Choirs | $2.99 | one-time |
| Electric Bass | $2.99 | one-time |
| Electric Guitars | $2.99 | one-time |
| Electric Pianos | $2.99 | one-time |
| Synth Strings & Brass | $2.99 | one-time |
| Woodwinds | $2.99 | one-time |
| Synth Bass | $2.99 | one-time |
| Synths | $2.99 | one-time |
| JNO-106 I | $2.99 | one-time |
| SK1 PK Child's Play | $2.99 | one-time |
| Orchestral Strings | $2.99 | one-time |
| Bells & Mallets | $2.99 | one-time |
| Orchestral Plucked | $2.99 | one-time |
| Orchestral Brass | $2.99 | one-time |
| Pad Sounds | $2.99 | one-time |
| Orchestral Sections | $2.99 | one-time |
| Orchestral Woodwinds | $2.99 | one-time |
| Bass Splits: Electric Acoustic | $2.99 | one-time |
| JNO-106 II | $2.99 | one-time |
| Ensembles | $2.99 | one-time |
| Organs | $2.99 | one-time |
| TAQSIM SoundFont Pro Lifetime | $19.99 | one-time |
| TAQSIM SoundFont Pro Lifetime | $29.99 | one-time |

**What reviewers like**

- 🚀 Great app
- 👍 Fantastic experience
- 👍 Classical piano
- 👍 Can import own soundfonts

**What reviewers complain about**

- 🐛 Crashes on startup
- 🐛 Crashes when importing large soundfonts
- 🐛 Soundfonts off pitch
- 🐛 Soundfont import issues
- 🐛 Doesn't accept SF2 files

**Reported bugs**

- Crashes when importing large soundfonts
- Soundfonts off pitch
- Doesn't accept SF2 files
- Select button doesn't work
- Constant crashing

**Requested features**

- Add support for chromatic scale files
- Add mass import feature for soundfonts
- Improve soundfont importation and add custom categories


## Frequently asked questions

### Is SynthMaster One for iPhone free?

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

### Is Soundfont Pro free?

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

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

SynthMaster One for iPhone is rated higher. SynthMaster One for iPhone averages 4.8 out of 5 from 331 ratings, while Soundfont Pro averages 4.4 from 767 ratings.

### Do SynthMaster One for iPhone or Soundfont Pro have ads?

Soundfont Pro shows ads; SynthMaster One for iPhone does not.

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

SynthMaster One for iPhone ships an update every 2 months, and Soundfont Pro every 6 weeks. Most recently, SynthMaster One for iPhone was updated on September 19, 2026 and Soundfont Pro on September 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.*