Cotracks vs BLEASS Groovebox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cotracks
Create music collaboratively on a single iPad with a multitrack sequencer. Record and play back your own parts in sync with others, building complex tracks with various instruments and effects. Designed to maintain creative flow for solo or group sessions.
- Multitrack sequencer with up to 12 instrument tracks
- Beat synchronized playback and recording
- Dedicated interface modes for 1, 2, or 4 users
- Polyphonic and monophonic synthesizers with quality presets
- Sample player with professional library
- Stereo delay, phaser, and equalizer effects
- Audiobus support and audio export options
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"Cotracks is a brilliant concept and, on the whole, has been beautifully realised by Futucraft." - MusicAppBlog.com "Cotracks is a great platform for creation that has hit upon a clever collaborative setup." - Apps Magazine "A new approach to collaboration" - PalmSounds.net Cotracks is a collaborative music studio for teamwork on a single iPad. With Cotracks you can create multiple layers of loops and phrases using multiple instruments. Cotracks is designed to maintain your creative flow and is always ready to capture your ideas, regardless whether you are flying solo or collaborating with others. It's like playing with a band, but this time you can record and play back your own parts, in perfect sync with others, and create the constituents for a great track at the same time. With Cotracks the whole is greater than the sum of its parts. FEATURES MULTITRACK SEQUENCER • up to 12 instrument tracks • beat synchronized playback and recording INTERFACE • comfortable access for multiple users • dedicated interface modes for single user, two users and four users • switch between interface modes with a single tap • independent playback control constantly available for each instrument • repeater lets you play and record complex beat synced rhythmic textures • XY-modulation control EDITING • nondestructive quantize, transpose and swing • change the playback scale of recorded sequences • drag and drop copying of sequences between instruments INSTRUMENTS • polyphonic synthesizer with dozens of high quality instrument presets • monophonic bass/lead synthesizer with dozens of high quality instrument presets • sample player with a library of professional quality samples from Inspire Audio • programmable XY-modulation • band-limited oscillators to ensure professional grade sound quality FX • stereo delay • stereo phaser • 2 equalizer units • dedicated units for each track SHARING • Audiobus support • export each instrument to separate audio clip • export all in one audio mixdown clip SUPPORT • on-screen help and tips • online support integrated in app • video tutorials
BLEASS Groovebox
Create, perform, and compose music with this all-in-one beat studio. Features a multitrack sequencer, synthesizers, and drum machines for intuitive beatmaking and sound design. Optimized for both studio and live performance.
- Multitrack sequencer
- Monophonic & polyphonic synthesizers
- Drum machines
- Sample recording and editing
- Real-time performance controls
- MIDI and Ableton Link support
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BLEASS Groovebox brings music production and performance to its very core: play, perform, compose beats, chords and melodies in a new yet intuitive way thanks to its multitrack sequencer, monophonic & polyphonic synthesizers and drum machines. PROFESSIONAL GRADE INSTRUMENT BLEASS Groovebox has been designed for both iPhone and iPad and offers great performance and stability thanks to its powerful realtime audio engine and fully customizable parameters: go deep in the shaping of electronic sounds without being limited by factory presets. WILD BASSES, BEATS AND SYNTHS Record, import and edit your own samples and make sick beats out of the 16 steps sequencer with customizable filters and grooves, as well as binary and ternary quantization. Customize endlessly your monophonic and polyphonic synthesizers by tweaking the effects, envelopes and LFOs ! BUILT FOR STUDIO AND LIVE PERFORMANCE Unique slider controls, long-press & multi-touch controls make this groovebox a perfect live tool: Record/Edit/Start/Stop/Copy/Paste your patterns as you feel like, build and arrange your songs on the fly, apply reverb or delay effects, and let the music live! COMPATIBLE WITH THE iOS MUSIC STANDARDS BLEASS groovebox supports Ableton Link and Inter-App Audio and also works in complete synergy with all of your studio soft- and hardware gear using MIDI IN/OUT and SYNC OUT features. Manage your project files, audio export, import your own samples thanks to the Apple iOS Files Integration. Load BLEASS groovebox in your favorite host or plug your iPhone or iPad in an external sound card to enjoy virtual and physical multi-track output routing. GENERAL FEATURES : > low-CPU and low-latency iOS-dedicated audio engine > up to 16 steps per bar > up to 8 bars per sequence > separate groove settings per track > binary and ternary time signatures and quantization > live and song modes > tap tempo > metronome > speed control for each sequence ( x 0.5 / x1 / x2 ) > multi-touch solo button for each track > start & stop sequences with single tap and double tap > 2 FX sends > 4 tracks sequencer > optimized workflow for a smooth live/studio experience > notes swapping : easily move a note to a different step > major and minor scales DRUM MACHINE > 6 user-customizable samples per track > sample length, attack, release and pitch settings > low pass and high pass filters > post and pre- drive and bitcrusher settings > velocity settings per step (with random velocity option) > sample import via iCloud or Files MONO SYNTHS > up to 9 virtual-analog synthesizers for each track > 2 oscillators + 1 noise > 1 amplifier envelope > 2 filters with 1 envelope > post and pre- drive and bitcrusher > 2 LFOs > presets loading > pitch envelope CHORDS > on the fly chords performance with scales > up to 4 virtual-analog synthesizers for each track > 2 oscillators + 1 noise > amplifier and pitch envelope > 2 filters with 1 envelope > strumming > bitcrusher > 2 LFOs > presets loading ADVANCED FEATURES > expression panels (pads or keyboard) with beat repeat > on the fly sequence recording with quantization > sample recording > iCloud synchronization > live audio export > Ableton Link & Inter-App Audio compatibility PRO FEATURES You can access all the BLEASS PRO FEATURES by purchasing the full unlock (pay once and own forever). As a PRO user, you gain access to all premium features, all samples and all presets packs, as well as upcoming new features and instruments added continuously: > Access to all samples packs (over 1000 samples). New sample packs added regularly! > Projects files management : load, save, import, export… > MIDI in/out > MIDI LEARN (control changes) > MIDI sync out > Presets saving > MIX panel > FXs parameters customization : reverb, delay, ping pong delay > External Audio Routing > Virtual Audio Routing (open separate BLEASS audio channels into any compatible host) Find tutorials and more about our plugins on www.bleass.com
Screenshots
Verdict
The clearest difference is price: BLEASS Groovebox at Free against Cotracks's $29.99. BLEASS Groovebox also leads on update cadence (every 6 weeks vs every 6 months) and ratings volume (38 vs 3). Cotracks's advantage is in-app purchases (none vs 1) and rating (4.7 vs 4.3). On ads 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
BLEASS Groovebox is free to download; Cotracks costs $29.99 up front. BLEASS Groovebox sells 1 one-off in-app purchase. Cotracks asks for nothing beyond the download.
Cotracks holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: BLEASS Groovebox has 38 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 86% of Cotracks's written reviews are positive against 64% of BLEASS Groovebox's.
Cotracks ships an update every 6 months, BLEASS Groovebox every 6 weeks. The most recent releases landed on June 5, 2026 and October 17, 2026 respectively.
| Parameter | Cotracks | BLEASS Groovebox |
|---|---|---|
| Price | $29.99 | Free — better |
| Rating | 4.7 (3 ratings) — better | 4.3 (38 ratings) |
| Positive reviews | 85.7% of reviews — better | 64.1% of reviews |
| Number of ratings | 3 | 38 — better |
| Update frequency | Every 6 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Futucraft Oy | BLEASS |
Customer experience
Cotracks
BLEASS Groovebox
In-app purchases
Cotracks
No in-app purchases
BLEASS Groovebox
- Full Unlock$4.99









