# SynthMaster One vs AddStation

The clearest difference is in-app purchases: AddStation at none against SynthMaster One's 11. AddStation also leads on update cadence (weekly vs every 2 months) and review sentiment (82% vs 64%). SynthMaster One's advantage is ratings volume (743 vs 43) and rating (4.7 vs 4.5). On ads and device support there is nothing between them.

SynthMaster One costs $9.99 and AddStation $8.99 up front. SynthMaster One sells 11 one-off in-app purchases. AddStation asks for nothing beyond the download.

SynthMaster One holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: SynthMaster One has 743 ratings behind it against 43, so its average is the more settled of the two. Written reviews complicate that: 64% of SynthMaster One's written reviews are positive against 82% of AddStation's, so the app with the better star average is not the one people write more warmly about.

SynthMaster One ships an update every 2 months, AddStation weekly. The most recent releases landed on September 22, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | SynthMaster One | AddStation |
| --- | --- | --- |
| Price | $9.99 | **$8.99** |
| Rating | **[4.7 (743 ratings)](https://appshunter.io/ios/app/synthmaster-one/id1254353266/reviews)** | [4.5 (43 ratings)](https://appshunter.io/ios/app/addstation/id1500919657/reviews) |
| Number of ratings | **743** | 43 |
| Positive reviews | 63.8% of reviews | **82.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 402 MB | 133 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KV331 Audio](https://appshunter.io/developer/944155925) | [Harry Gohs](https://appshunter.io/developer/382428644) |

## What reviewers say

### 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


### AddStation

[App page](https://appshunter.io/ios/app/addstation/id1500919657)

Explore new sonic territories with this advanced additive synthesis tool. Create complex timbres by combining thousands of sine waves and unique morph sequencing. Integrate seamlessly with iOS production environments and enjoy a suite of built-in effects.

**Highlights:** Fractal additive synthesis, Sound morphing, Over 170 sound presets, AUv3 AudioUnit integration, Built-in effects suite, Audiobus 3 and Ableton Link support

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

**In-app purchases:** none


## Frequently asked questions

### Is SynthMaster One free?

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

### Is AddStation free?

AddStation costs $8.99, with no in-app purchases.

### Which has better reviews, SynthMaster One or AddStation?

SynthMaster One is rated higher. SynthMaster One averages 4.7 out of 5 from 743 ratings, while AddStation averages 4.5 from 43 ratings.

### Do SynthMaster One or AddStation have ads?

Neither SynthMaster One nor AddStation shows ads.

### Which is updated more often, SynthMaster One or AddStation?

SynthMaster One ships an update every 2 months, and AddStation weekly. Most recently, SynthMaster One was updated on September 22, 2026 and AddStation on September 8, 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.*