iDousyn Lite vs Refader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iDousyn Lite
This app transforms your device into a versatile musical instrument, offering a wide range of high-quality sounds and intuitive tools for creating melodies and harmonies. Explore authentic pianos, basses, guitars, and more with innovative features like Chord Pads and DSP effects.
- 8-Octave Virtual Keyboard
- Chord Pads with Strum Options
- High-Fidelity Oscillators
- DSP Effects (Reverb, Delay, EQ)
- Dual-Channel Sound Blending
- MIDI Controller Support
- Export to WAV, AIFF, CAF, M4A
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Turn your iPhone or iPad into a powerful virtual synthesizer and sample-based instrument. Play authentic pianos, basses, guitars, drums, leads, pads, and synths with high-quality samples. Perfect for creating melodies, performing live, or exploring musical ideas on the go. At the core of iDousyn Lite is the innovative Chord Pads system. Build rich harmonies from the virtual keyboard — from simple triads to complex chord stacks. Colored keys highlight every note so you can clearly see how chords are constructed. Shape rhythm with Strum Options (Normal, Up, Down, Up/Down, Down/Up) and fine-tune timing with Rate and Delay controls, or loop chords for continuous play. Key Features • 8-Octave Virtual Keyboard – Expandable key sizes with low-latency external MIDI controller support. • Chord Pads – 5 programmable pads per channel for fast visual chord building and harmonic exploration. • High-Fidelity Oscillators – Craft vivid synth leads, punchy basses, and electronic tones. • Professional Filters – Low-Pass, High-Pass, Band-Pass, High Shelf, and Low Shelf with full Cutoff & Resonance control. • Studio Effects – Reverb, Delay, Parametric EQ, Compressor, and Peak Limiter. • Dual-Channel Engine – 2 independent layers with Octave, Semitone, Cents, Pan, and Level controls. • Full MIDI Support – Connect external MIDI controllers with custom key mapping. • Export & Share – Record in high-quality WAV, AIFF, CAF, or M4A with full AudioShare compatibility. Sound Library • 77 carefully crafted presets across 11 categories: Bass, Chords, Drums, Guitars, Instruments, Leads, Pads, Orchestral, SFX, Plucked, and Synth (7 unique presets per category). Download iDousyn Lite today and turn your mobile device into a portable music production studio!
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
The clearest difference is review sentiment: Refader at 80% against iDousyn Lite's 36%. Refader also leads on in-app purchases (none vs 1) and ads (none vs shown). iDousyn Lite's advantage is ratings volume (697 vs 6) and rating (4.4 vs 4.2). On price, device support and iOS requirement 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
Both are free to download. iDousyn Lite sells 1 one-off in-app purchase. Refader asks for nothing beyond the download.
iDousyn Lite holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: iDousyn Lite has 697 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 36% of iDousyn Lite's written reviews are positive against 80% of Refader's, so the app with the better star average is not the one people write more warmly about.
iDousyn Lite ships an update every 3 months, Refader every 2 days. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.
| Parameter | iDousyn Lite | Refader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (697 ratings) — better | 4.2 (6 ratings) |
| Positive reviews | 36.4% of reviews | 80.0% of reviews — better |
| Number of ratings | 697 — better | 6 |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.2 |
| Further details — not scored | ||
| Size | 67 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Jorge Lozada | Pedro Yamada |
Customer experience
iDousyn Lite
Refader
Bugs and requests
iDousyn Lite
Reported bugs
3 issues- Piano audio continues playing when switching to other instruments
- App locks up until user submits a review
- Frequent pop-ups and ads interrupt functionality
Requested features
1 request- Ringtone customization options
Refader
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iDousyn Lite
- Remove Ads$0.99
Refader
No in-app purchases









