Comparison

Combustor vs Songometry

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

Head to head
About

Combustor

This audio effect extension transforms tracks with a unique time-bending resonator. Create vibrant textures, subtle resonances, and dynamic sweeps. It's designed for electronic musicians and producers seeking to add wild or organic qualities to their sounds.

Highlights
  • Time bending resonator effect
  • Creates distorted textures and physical resonance
  • Envelope follower for dynamic control
  • MIDI input for melodic control
  • Performative interface
  • AUv3 compatible
Features
Read full description

*** Note: Combustor is an Audio Unit effect extension and requires an AUv3 compatible host app, like Logic Pro, Drambo or GarageBand. It does not run as a standalone app *** Combustor is a unique, wild resonating body fashioned to spice up or extremely transform your tracks. At the heart of Combustor is a custom time bending resonator that doesn't sound like anything you have heard before. You can create anything from vibrant, distorted texture, perfectly suited for "hardcore" electronic musicians, to subtle physical resonance, which is often lacking in synthesized sounds. Combustor contains an envelope follower, to create dynamic-controlled pitch or filter sweeps. It also has MIDI input, that controls resonator's pitch, to make something melodic and organic out of non-melodic sounds, like drums. With just a few knob turns, a boring sound can be turned into screaming madness that sounds like it went out of control. A simple and straightforward interface makes Combustor a performative tool that allows you to directly interact with your sound.

About

Songometry

Features
Read full description

YOUR MUSIC TOOLKIT Songometry brings 29 practical tools into one focused workspace for musicians, songwriters, guitarists, composers and producers. TEMPO & RHYTHM Practise with an audio-clocked metronome, tap a tempo, convert BPM to milliseconds and calculate delay or reverb timing. Convert bars to time, plan tempo changes and calculate sample time-stretch ratios. CHORDS, KEYS & GUITAR Transpose chord progressions, calculate capo positions and compare likely keys. Explore chord progressions, identify chords from notes, browse scales and modes, navigate the Circle of Fifths and analyse progressions with Roman numerals. Check how a song fits a vocal range. AUDIO & PRODUCTION Tune one note at a time with the microphone tuner and reference tones. Analyse an audio file locally for tempo and key estimates. Convert frequency and note values, calculate pitch-related playback ratios and estimate audio file sizes. SONGWRITING & RELEASE PLANNING Calculate song duration, build a section timeline and follow a release metadata checklist. Model royalty and streaming revenue, publishing splits and release break-even targets with clear assumptions. Core tools work offline and no account is required. Audio analysis happens on your device. Tempo, key and revenue estimates are references to check against your music and actual circumstances. Free to play with ads. One optional purchase removes ads permanently. No subscription. Advertising, purchases and Restore Purchases require an internet connection. The app interface and tool guidance are currently in English. Game interface in English.

Screenshots

Combustor1 screens
Songometry4 screens

Verdict

The call

The clearest difference is price: Songometry at Free against Combustor's $4.99. Songometry also leads on update cadence (every 2 weeks vs every 2 months). Combustor's advantage is in-app purchases (none vs 1) and ads (none vs shown).

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

Songometry is free to download; Combustor costs $4.99 up front. Songometry sells 1 one-off in-app purchase. Combustor asks for nothing beyond the download.

UpkeepUpdate frequency

Combustor ships an update every 2 months, Songometry every 2 weeks. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Combustor versus Songometry: the parameters behind the verdict, then further details
ParameterCombustorSongometry
Price$4.99Free — better
Rating4.7 (20 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings20 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.0
Further details — not scored
Size4 MB13 MB
Age rating4+4+
DeveloperBeepStreetAlexis Glorieux

In-app purchases

None

Combustor

No in-app purchases

1 purchases

Songometry

One-time1
  • Remove Ads$7.99

Questions

Is Combustor free?
Combustor costs $4.99, with no in-app purchases.
Is Songometry free?
Songometry is free to download, with in-app purchases available.
Do Combustor or Songometry have ads?
Songometry shows ads; Combustor does not.
Which is updated more often, Combustor or Songometry?
Combustor ships an update every 2 months, and Songometry every 2 weeks. Most recently, Combustor was updated on October 27, 2026 and Songometry on October 29, 2026.

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