Comparison

FretMachine vs TowerDub

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FretMachine

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
Read full description

Place chords on the fretboard. Sketch guitar parts with strumming patterns. FretMachine is a guitar chord and strumming sequencer for musicians, producers, songwriters, and DAW users. Unlike traditional tab-based workflows, FretMachine provides a more intuitive way to create guitar parts. Place chords on a fretboard-style interface, create strumming patterns in the rhythm sequencer, and arrange your ideas on the timeline. When you place notes on the fretboard, FretMachine analyzes the shape in real time and shows you the chord name. You can also choose chords directly from the chord library and quickly build chord progressions. Once your chords are ready, create strumming patterns on the rhythm grid, arrange them on the timeline, and export your ideas as MIDI files for further production in your DAW. KEY FEATURES • Strum-Based Sequencing Create guitar ideas around chords and strumming rhythms instead of entering notes one by one. • Pattern-Based Sequencer Arrange strumming and rhythm patterns freely on the timeline to structure your song ideas. • Chord Library Supports Basic Triads, 7th chords, tension chords such as 9th/11th/13th, sus/add chords, Altered chords, and a variety of guitar voicings. • Reverse Chord Finder Place notes on the fretboard and see the chord name analyzed in real time. • Fretboard Input Enter and sequence chord shapes while viewing a visual guitar fretboard interface. • Rhythm & Strumming Pattern Editor Design strumming rhythms on a grid using downstrokes and upstrokes. • MIDI Export Export completed guitar parts as MIDI files and bring them into your DAW. FretMachine helps you quickly build guitar-focused ideas, from chord sketches to pattern-based song drafts.

About

TowerDub

Features
Read full description

TowerDub is an all-in-one groovebox for building reggae riddims and mixing dub, live. Program kick, snare, hats and perc as four independent drum voices, each with its own pattern, velocity and p-locks. Layer in Bass, Chords, Lead and Pads — warm, analog-style synths built for roots and dub, playable on a scale keyboard and recordable live with real quantized overdub. Record a vocal chop or a field sample straight into the built-in Sampler. Mix it down through a proper dub desk: send delay and reverb per instrument, sweep a King Tubby–style resonant filter across any bus, throw in siren stabs, and pass your mic straight through the board. Cut instruments in and out live, capture the whole pass with one-tap dub recording, and keep multiple mix versions of the same riddim. No subscriptions — just a warm, hand-tuned instrument built for the sound of the desk.

Screenshots

FretMachine4 screens
TowerDub4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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

Scorecard4 real differences · 5 level
FretMachine versus TowerDub: the parameters behind the verdict, then further details
ParameterFretMachineTowerDub
PriceFree — better$9.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyDaily — betterEvery 4 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size227 MB2 MB
Age rating4+4+
DeveloperKyuhwa ChoiAdrien de Quatrebarbes

In-app purchases

1 purchases

FretMachine

One-time1
  • Pro Unlock$4.99
None

TowerDub

No in-app purchases

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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