iDousyn vs Complete Rhythm Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iDousyn
This app transforms your device into a professional music production tool. It features a sample-based synthesizer with dual-layer sampling, advanced filters, and a professional effects chain. Create immersive sounds and build captivating tracks with an intuitive interface and extensive sound library.
- Dual-layer sampling
- Advanced filters and EQ
- Professional effects chain
- Creative chord pads
- MIDI mastery
- Expansive sound library
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iDousyn transforms your iPhone and iPad into a premium sampler, synthesizer, and AUv3 plugin built for professional music production, beat making, and sound design. Powered by a massive dual-layer rompler engine, it delivers a touch-optimized workflow to create studio-quality music anywhere. Seamlessly integrating as a high-performance AUv3 Audio Unit, iDousyn is the perfect companion for Logic Pro for iPad, GarageBand, Cubasis, AUM, Loopy Pro, and other leading iOS DAWs. Whether you are producing EDM, making hip hop beats, scoring cinematic soundtracks, or designing ambient soundscapes, iDousyn gives you the ultimate sonic palette. Chord Sequencer & Harmony Engine • Ultimate Inspiration: Instantly browse, audition, and map over 432 chord variations and 100 global musical scales directly to your pads—no advanced music theory required. • Timeline Sequencer: Drag and drop your custom chords into the new visual timeline. Program rests, set loop lengths, and let the zero-latency lookahead scheduler play your progressions with perfect tempo synchronization. • Dynamic Performance: 10 customizable Chord Pads featuring intelligent strumming, dual MIDI keyboards, and assignable key ranges with real-time Neon Glow visual feedback. Dual-Layer Synthesis & DSP Effects • True Dual-Layer Rompler: Stack and blend two independent sample oscillators. Fine-tune with octave, semitone, cents, pan, and level controls for massive, evolving textures. • Studio-Grade FX Chain: Shape your tone with multi-mode filters, a parametric EQ, and fully automatable AUv3 effects including Reverb, Delay, Chorus, Flanger, Phaser, Compressor, and Limiter. Massive Sound Library & iCloud Sync • 1,100+ Premium Samples: An expansive built-in soundbank featuring heavy basses, lush synth pads, sharp leads, drum kits, acoustic guitars, and orchestral strings. • Smart Presets: Create unlimited custom patches. Your library is safely backed up with automatic, silent background iCloud Drive synchronization across all your Apple devices. Pro Recording & Export • Lossless Audio & MIDI: Record your live sessions directly within the app and export high-fidelity FLAC, WAV, AIFF, CAF, or M4A audio files, as well as full MIDI sequences. • AudioShare Integration: Instantly route your bounces to your favorite audio editors. • Background Audio: Keep your sequences running and your MIDI controllers active even while switching between apps. Designed for modern producers, beat makers, live performers, and synth enthusiasts, iDousyn brings desktop-class virtual instruments right to your fingertips.
Complete Rhythm Trainer
Master musical rhythm with this comprehensive training app. It offers progressive drills, diverse rhythm exercises, and interactive modes designed to make learning enjoyable. Track your progress and compete with others.
- 252 progressive drills
- Multiple time signatures and note values
- 5 drill types (imitation, reading, dictation)
- Arcade and polyrhythm modes
- Custom drill creation
- Teacher-student program features
- Cloud sync
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The ultimate rhythm training app for musicians. Learn to read, recognize, tap and write rhythms from simplest to most advanced. Rhythm is one of the most important aspects of music and one that every musician should become proficient with. Designed like a video game and with strong pedagogical concepts in mind, this app will make you master rhythm while rendering the learning process enjoyable. Features • 252 progressive drills arranged over 4 levels / 30 chapters • Extensive content: from simple time signatures to compound and asymmetric time signatures, from half notes and quarter notes to thirty-second notes, triplets, swing eighths, double dotted notes, quintuplets, ... • 5 drill types: rhythm imitation drills, rhythm reading drills, rhythm dictations, two-voice reading drills and two-voice dictations • Play a selection of 11 drills in arcade mode • Play and practice polyrhythms in a dedicated polyrhythm section • Most of the drills are randomly generated, enabling you to practice the studied rhythms as many times as needed • 23 instrument sound banks with actual recorded sounds: piano, guitar, pizzicato violin, conga, bongo, djembe, darabuka, woodblock, ... • Designed like a video game: earn 3 stars in each drill of a chapter to complete it. Or will you be able to obtain perfect 5-star scores? • Don't want to follow the preestablished path of progression? Create and save your own custom drills and rehearse them at your own convenience • Create full custom training programs and invite friends or students to join them. If for example you're a teacher you can create custom programs for your students, add drills every week and view their scores on private leaderboards • Never lose any progress: cloud sync across your various devices • 25 achievements to unlock • Leaderboards to compare arcade mode scores with other players worldwide • Nice and clean user interface with 2 display themes: light and dark • 4 sheet music display styles: modern, classic, handwritten and jazz • Designed by a musician and music teacher with a Royal Conservatory master's degree Full Version • Download the app and try out the first two chapters for free • One-time in-app purchase to unlock the full version on all your devices Having a problem? Got a suggestion? You can reach us at hello@completerhythmtrainer.com Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Complete Rhythm Trainer at 88% against iDousyn's 29%. Complete Rhythm Trainer also leads on price (Free vs $4.99) and rating (4.7 vs 4.2). On ratings volume, ads, in-app purchases and monetization model 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
Complete Rhythm Trainer is free to download; iDousyn costs $4.99 up front. iDousyn sells 1 one-off in-app purchase and Complete Rhythm Trainer sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Complete Rhythm Trainer holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 159 and 103 respectively. Written reviews point the same way: 29% of iDousyn's written reviews are positive against 88% of Complete Rhythm Trainer's.
iDousyn ships an update every 2 months, Complete Rhythm Trainer fortnightly. Both last shipped on September 21, 2026.
| Parameter | iDousyn | Complete Rhythm Trainer |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.2 (159 ratings) | 4.7 (103 ratings) — better |
| Positive reviews | 29.3% of reviews | 88.0% of reviews — better |
| Number of ratings | 159 — better | 103 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.5 — better |
| Further details — not scored | ||
| Size | 1.2 GB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Jorge Lozada | Binary Guilt |
Customer experience
iDousyn
Complete Rhythm Trainer
In-app purchases
iDousyn
- Unlock ProFree
Complete Rhythm Trainer
- Cloud Sync and Web access$0.991 Month
- Cloud Sync and Web access$9.991 Year
- Full Version$6.99
Questions
Is iDousyn free?
Is Complete Rhythm Trainer free?
Which has better reviews, iDousyn or Complete Rhythm Trainer?
Do iDousyn or Complete Rhythm Trainer have ads?
Which is updated more often, iDousyn or Complete Rhythm Trainer?
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