Brusmaskin vs RasterFX
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Brusmaskin
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Brusmaskin is a pocket groovebox β an 8-track synthesizer, sampler and sequencer for making complete tracks wherever you are. SEVEN SOUND ENGINES FM synthesis with a subtractive filter stage, a raw mono synth with drive and wavefolding, a lush 7-voice supersaw, a dedicated drum synth with FM percussion, filtered noise and attack transients, a plucked string (KarplusβStrong) with a pick that changes every note, and GRAIN β a granular engine that plays any sample as a cloud. Plus a sampler with stereo samples, slicing, key-mapped chopping, non-destructive trim and a start offset for ghost notes. The same audio plays both ways β sampler or cloud β with zero copies. RESAMPLE YOURSELF Capture any track with one button β it keeps playing while the recording runs through its own private effects, so the take carries the filter, the drive and the track's own reverb and delay tail, in stereo. Then listen and choose what it becomes: a sample, a grain cloud sliced on the hits, or a playable kit where each note is one hit. Or record from the microphone, or GRAB the last 30 seconds of the master β the take you just played but forgot to record is still there. DEEP MODULATION Three envelopes and three LFOs per sound, each with three freely routable destinations β and every target lives on every engine. Vibrato on a sample, a moving noise filter on a drum, an LFO that rechops a break on every note, an envelope that scrubs a grain cloud through a field recording. HOLD, CURVE and END floors turn envelopes into drones. DEEP STEP SEQUENCING Per-step trig conditions, probability, ratchets with pitch rolls, swing, and patterns up to 128 steps with independent speed and length. An arpeggiator with chord pools, inversions and free-run mode. Sound locks put a different sound on any step, and per-step parameter offsets shape your sounds over time. SONGS, NOT JUST LOOPS Chain patterns into parts, phrases and full songs. Perform live in the performance view, mix with per-track faders, and glue everything together with chorus, delay and a rich plate reverb. Sidechain ducking built in. HANDS ON MIDI learn maps any knob, fader or button on your controller to sounds, mixer faders, mutes and solos β with soft takeover so nothing jumps. 576 factory presets cover every engine, and an INIT patch per engine gives you a clean starting point when you want to build from scratch. YOURS Projects and sample banks are stored in iCloud Drive as plain files you can see and back up. Scale-aware note entry, a built-in browser of vintage drum machine sample packs, and video import that pulls the audio straight out of a screen recording. No account, no subscription, and everything works completely offline.
RasterFX
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Make any sound move. RasterFX is a playable modular multi-effects processor for iPhone and iPad. Use it standalone with a microphone, an imported audio file or built-in signals β or load it as an AUv3 audio effect in AUM, GarageBand, Logic Pro for iPad, Loopy Pro, Cubasis and other Audio Unit hosts. BUILD YOUR EFFECT CHAIN Choose from Filter, Delay, Drive, Reverb, Grain, Repeat, Motion and Dynamics. Arrange up to six plates in series or split them into parallel A/B paths. Reorder the chain and the sound changes with it. MODULATE ANY CONTROL Patch LFOs, envelope followers, random and chaos sources, step sequencers, MIDI, macros, the XY pad or device tilt to any control. Create up to 16 modulation lines, with live arcs showing exactly how the sound is moving. PERFORM THE PATCH Morph between four snapshots on the XY pad. Turn eight macros. Hold four momentary throws for stutter, sweep, reverse and freeze. RasterFX is built to be played with one hand, not programmed and left alone. GENERATE, LOCK, EVOLVE Nudge a patch, reshape it or roll a new one. Lock the parts you want to keep, undo any result and save the seeds worth returning to. Evolve lets the patch drift over time while staying anchored to the sound you chose. SEE WHAT YOU HEAR Every effect has its own live visualizer. The CRT and halftone interface makes filters, delay taps, grains, dynamics and modulation visible without turning the screen into a wall of meters. RECORD THE RESULT Record the processed output to WAV, rename takes and share them from the app. FREE TO START. PRO ONCE. Free includes all eight effects, all modulation sources, every factory preset, three plates, four modulation lines and 60-second recordings. No ads, account, watermark or reduced audio quality. RasterFX Pro is a one-time purchase β not a subscription. It unlocks six plates, 16 modulation lines, split routing, XY snapshot morphing, Evolve, A/B compare, unlimited recording length and your own saved presets. Your saved sound always plays back exactly as created, even if it uses Pro features; Free limits editing, never playback. Made for headphones, late at night.
Screenshots
Verdict
The clearest difference is in-app purchases: Brusmaskin at none against RasterFX's 1. On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. RasterFX sells 1 one-off in-app purchase. Brusmaskin asks for nothing beyond the download.
| Parameter | Brusmaskin | RasterFX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | β |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details β not scored | ||
| Size | 22 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Mattias Ahlstrom | Chih Han Lin |
In-app purchases
Brusmaskin
No in-app purchases
RasterFX
- RasterFX Pro$3.99








