Comparison

BloopMachine vs Roostbox

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

Head to head
About

BloopMachine

This app is a monophonic synth-sequencer designed for creating acid lines and electronic music. It features a wavetable synth with a resonant filter and a deep step sequencer that can automate parameters. Explore generative patterns with a Mutate function and enhance your sound with a 5-effect FX section.

Highlights
  • Monophonic wavetable synth
  • Resonant filter
  • Deep step sequencer
  • Mutate function for synth and FX
  • 5-effect FX section
  • 48 patterns and Song mode
  • AUv3 plugin support
Read full description

BloopMachine is a monophonic synth-sequencer built for acid lines, glitchy textures and generative electronic music. Inspired by the sound worlds of Aphex Twin, Autechre and Morton Subotnick, it behaves like a TB-303 pushed way past the edge: squelchy, alive and gloriously unpredictable. At its heart is a wavetable synth with a resonant filter, driven by a deep step sequencer that can automate every parameter. Lean into the machine's love of chaos: the Mutate function reshapes your entire patch in one tap, turning simple sequences into organic, ever-shifting patterns that always stay musical. Shape your sound with a 5-effect FX section: Ring Modulator, Distortion, Chorus, Delay and Reverb, and sequence or mutate those parameters too, for movement and grit that evolves bar after bar. Build full tracks with 48 patterns and a Song mode that chains them into a timeline. Save your favourite machines as presets, then capture the result with real-time audio recording. Run it standalone or as an AUv3 plugin inside your favourite host, on iPhone, iPad and Mac. BloopMachine is free to download and explore. Unlock the full version with a single in-app purchase to use the complete FX section, access all 48 patterns, build tracks in Song mode, save and manage your own presets, export your music with real-time recording, and enable Undo. Features: • Monophonic wavetable synth with resonant filter • Synth octave, shape, decay, tone, phase & LFO parameters • Synth bend function • Mutate function for all synth parameters • Step sequencer for note, octave and all synth parameters • Variable step count up to 32 steps • FX module with 5 effects: Ring Modulator, Distortion, Chorus, Delay & Reverb (Full version) • Mutate function for all FX parameters • Step sequencer for all FX parameters • 48 patterns (Full version) • Song mode & Timeline (Full version) • Sequencer tempo, swing & clock division support • Pattern sync support • Audio export with real-time recording (Full version) • Undo function (Full version) • User presets management (Full version) • User presets import & export (Full version) • AudioUnit (AUv3) support • Full MIDI In support • MIDI Bluetooth • MIDI Clock In sync • MIDI mappings • Ableton Link sync support More to come, new features are on their way (harmonic scales, MIDI Out, …). Questions or feedback? We'd love to hear from you: contact@fingerlab.net Enjoy BloopMachine! Fingerlab Team

About

Roostbox

Features
Read full description

Roostbox is a groovebox that looks like a retro arcade cabinet and plays like one. It makes techno and other electronic music live, by hand: fly a ship through a beat, ride the faders, flick the stick, and every gesture you make is recorded and loops with the beat. It is a different way to play electronic music live. There is no step grid to program and no timeline to edit. Everything on screen is a control, you play it with two thumbs, and the loop keeps what you played. Two kits are in the box, and everything is free: both kits, the whole performance surface and the AUv3 plugin. No purchase, no account, no ads. Play it standalone on iPhone or iPad, or load it as an instrument inside AUM, Loopy Pro, Cubasis, Drambo or Logic Pro for iPad. TWO KITS IN THE BOX SPACE: fly a ship through a beat. Where the ship goes picks the groove: four-on-the-floor, backbeat, offbeat, broken, sixteenths. The cockpit page holds the mixer, a stick for filter and grit, overdrive, pump, tape, delay, reverb, crush and a DJ filter. A 303-style acid bass and a drum synth make the sound. PLIVKA: a four-track techno box. Kick, bass, snare and hat, each with a pattern control and a hit control, laid out over five pages: Rhythm, Sound, Perform, FX and Mix. The bass line is a Turing machine that mutates as much or as little as you let it. UNDER THE HOOD - Euclidean rhythm generators, a Turing machine sequencer and a trigger sequencer drive the patterns. - A drum synth and a 303-style acid bass synth make the sound. No samples. - Every fader move is recorded as motion and loops with the beat. Undo and redo if you change your mind. - Scenes: snapshot the whole kit and switch on the next sixteenth, beat, bar or pattern. - Master effects: delay and reverb sends, filter, crush, tape, compressor, sidechain pump and a limiter. - MIDI learn: map any control to a hardware controller. - Landscape only. Made for two thumbs. AUv3 The plugin is the same instrument as the app, with the same two kits, and it is free. It follows the host tempo and transport. Jam in the standalone app; record into your DAW with the plugin. WHAT 1.0 IS Two kits, built to be played. Building your own kits is not part of this version. Roostbox is made by one person. If something is broken, tell me: reach.freefall.studio@gmail.com

Screenshots

BloopMachine4 screens
Roostbox3 screens

Verdict

The call

The clearest difference is rating: Roostbox at 4.5 against BloopMachine's 3.7. Roostbox also leads on in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.6). On price, review sentiment, ratings volume and update cadence 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

Both are free to download. BloopMachine sells 1 one-off in-app purchase. Roostbox asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Roostbox holds the better App Store score, 4.5 against 3.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

BloopMachine ships an update fortnightly, Roostbox every 3 weeks. Both last shipped on November 13, 2026.

Scorecard3 real differences · 7 level
BloopMachine versus Roostbox: the parameters behind the verdict, then further details
ParameterBloopMachineRoostbox
PriceFreeFree
Rating3.7 (3 ratings)4.5 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings3 — better2
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size13 MB71 MB
Age rating4+4+
DeveloperFingerlabARTEM VOVSIA

Customer experience

BloopMachine

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Roostbox

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

BloopMachine

One-time1
  • BloopMachine - Full Version$7.99
None

Roostbox

No in-app purchases

Questions

Is BloopMachine free?
BloopMachine is free to download, with in-app purchases available.
Is Roostbox free?
Roostbox is free to download, with no in-app purchases.
Which has better reviews, BloopMachine or Roostbox?
Roostbox is rated higher. BloopMachine averages 3.7 out of 5 from 3 ratings, while Roostbox averages 4.5 from 2 ratings.
Do BloopMachine or Roostbox have ads?
Neither BloopMachine nor Roostbox shows ads.
Which is updated more often, BloopMachine or Roostbox?
BloopMachine ships an update fortnightly, and Roostbox every 3 weeks. Most recently, BloopMachine was updated on November 13, 2026 and Roostbox on November 13, 2026.

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