# MusicBook Pro vs Tonic Synth

The clearest difference is price: MusicBook Pro at Free against Tonic Synth's $24.99. MusicBook Pro also leads on device support (5 vs 3). Tonic Synth's advantage is in-app purchases (none vs 1) and update cadence (every 4 days vs every 10 days). On ads and iOS requirement there is nothing between them.

MusicBook Pro is free to download; Tonic Synth costs $24.99 up front. MusicBook Pro sells 1 one-off in-app purchase. Tonic Synth asks for nothing beyond the download.

MusicBook Pro ships an update every 10 days, Tonic Synth every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | MusicBook Pro | Tonic Synth |
| --- | --- | --- |
| Price | **Free** | $24.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tonic-synth/id6783345229/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | — | Paid |
| Size | 33 MB | 34 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Mac, Apple TV, Apple Watch** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Lars Joergensen](https://appshunter.io/developer/1896770609) | [Rubens Felicio](https://appshunter.io/developer/6775565794) |

## What reviewers say

### MusicBook Pro

[App page](https://appshunter.io/ios/app/musicbook-pro/id6771082002)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MusicBook Pro Fullversion | $9.99 | one-time |


### Tonic Synth

[App page](https://appshunter.io/ios/app/tonic-synth/id6783345229)

A powerful synthesizer app offering three oscillators with diverse sound sources, including physical modeling and wavetables. It features eight analog filter simulations, extensive modulation options, and a full effects rack. Available as a standalone app or AU/AUv3 plugin for Mac and iOS.

**Highlights:** Three oscillators with physical modeling, virtual-analog, wavetable, SF2, and sysex FM, Eight analog filter simulations (LP/HP/BP/Notch, 12/24 dB), Comprehensive modulation: LFO, envelope follower, note-per-note filter envelope, Full effects rack: chorus, delay, reverb, EQ, compressor, flanger, phaser, Standalone app and AU/AUv3 plugin support, Live performance features: editable presets, six scenes, MIDI Learn

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MusicBook Pro free?

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

### Is Tonic Synth free?

Tonic Synth costs $24.99, with no in-app purchases.

### Do MusicBook Pro or Tonic Synth have ads?

Neither MusicBook Pro nor Tonic Synth shows ads.

### Which is updated more often, MusicBook Pro or Tonic Synth?

MusicBook Pro ships an update every 10 days, and Tonic Synth every 4 days. Most recently, MusicBook Pro was updated on October 24, 2026 and Tonic Synth on October 24, 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.*