# FretMachine vs TowerDub

The clearest difference is price: FretMachine at Free against TowerDub's $9.99. FretMachine also leads on update cadence (daily vs every 4 days) and iOS requirement (15.0 vs 17.0). TowerDub's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

FretMachine is free to download; TowerDub costs $9.99 up front. FretMachine sells 1 one-off in-app purchase. TowerDub asks for nothing beyond the download.

FretMachine ships an update daily, TowerDub every 4 days. The most recent releases landed on October 22, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | FretMachine | TowerDub |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fretmachine-guitar-sequencer/id6772944355/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 4 days |
| Monetization | Free | — |
| Size | 227 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kyuhwa Choi](https://appshunter.io/developer/6772944357) | [Adrien de Quatrebarbes](https://appshunter.io/developer/6806206384) |

## What reviewers say

### FretMachine

[App page](https://appshunter.io/ios/app/fretmachine-guitar-sequencer/id6772944355)

This app allows musicians to sketch guitar parts by placing chords on a fretboard and creating strumming patterns. It offers an intuitive alternative to traditional tab workflows, enabling users to build chord progressions and export ideas as MIDI files for DAWs.

**Highlights:** Fretboard chord input, Strumming pattern sequencer, Chord library with advanced chords, Real-time chord analysis, MIDI export for DAWs, Timeline arrangement

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $4.99 | one-time |


### TowerDub

[App page](https://appshunter.io/ios/app/towerdub/id6806206082)

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

**In-app purchases:** none


## Frequently asked questions

### Is FretMachine free?

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

### Is TowerDub free?

TowerDub costs $9.99, with no in-app purchases.

### Do FretMachine or TowerDub have ads?

Neither FretMachine nor TowerDub shows ads.

### Which is updated more often, FretMachine or TowerDub?

FretMachine ships an update daily, and TowerDub every 4 days. Most recently, FretMachine was updated on October 22, 2026 and TowerDub on October 23, 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.*