iDousyn vs Refader
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.
Refader
Control MIDI devices and hosts remotely via USB or Wi-Fi. Connect your device to a computer using "Audio MIDI Setup" to establish a networked MIDI session.
- MIDI fader controller
- Control MIDI devices
- Control MIDI hosts
- USB connectivity
- Wi-Fi connectivity
- Networked MIDI sessions
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Refader is a MIDI fader controller to control MIDI devices and hosts via USB or wi-fi sessions. To connect to your computer, use "Audio MIDI Setup" and join the networked MIDI session on the "MIDI Studio" app.
Screenshots
Verdict
iDousyn and Refader both sit at 4.2 stars, but that hides the real split: 80% of Refader's written reviews are positive against 34% of iDousyn's. Refader also leads on price (Free vs $9.99) and in-app purchases (none vs 1). iDousyn's advantage is ratings volume (159 vs 6). On rating, ads and device support 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
Refader is free to download; iDousyn costs $9.99 up front. iDousyn sells 1 one-off in-app purchase. Refader asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.2 for iDousyn against 4.2 for Refader. That said, the two scores are not equally well evidenced: iDousyn has 159 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 34% of iDousyn's written reviews are positive against 80% of Refader's.
iDousyn ships an update every 2 months, Refader every 2 days. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.
| Parameter | iDousyn | Refader |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.2 (159 ratings) | 4.2 (6 ratings) |
| Positive reviews | 34.1% of reviews | 80.0% of reviews — better |
| Number of ratings | 159 — better | 6 |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.2 — better |
| Further details — not scored | ||
| Size | 1.2 GB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Jorge Lozada | Pedro Yamada |
Customer experience
iDousyn
Refader
In-app purchases
iDousyn
- Unlock ProFree
Refader
No in-app purchases
