iDousyn Lite vs SG X VF
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!
SG X VF
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Symphony Graphique and UNLTD powered by Verbier Festival are pleased to invite you to this augmented reality experience with the Beethoven Symphony No. 5 Visual Listening Guide! With this app, powered by Immersive Publishing, the printed pages of this Visual Listening Guide launch brief audio music clips from the Verbier Festival Chamber Orchestra’s recent recording release on Deutsche Grammophon, thus highlighting and revealing the structure of this symphonic masterpiece. Using this app, you’ll also discover throughout a variety of exclusive digital content, including text panels, images, and videos, offering you additional insights into the piece from musicians and experts. Enjoy your listening journey!
Screenshots
Verdict
The clearest difference is ads: SG X VF at none against iDousyn Lite's shown. SG X VF also leads on update cadence (monthly vs every 3 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.
iDousyn Lite ships an update every 3 months, SG X VF monthly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.
| Parameter | iDousyn Lite | SG X VF |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (700 ratings) — better | — |
| Positive reviews | 36.4% of reviews | — |
| Number of ratings | 700 — better | — |
| Update frequency | Every 3 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 67 MB | 251 MB |
| Age rating | 4+ | 17+ |
| Developer | Jorge Lozada | Immersive Publishing Ltd. |
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
SG X VF
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iDousyn Lite
No in-app purchases
SG X VF
No in-app purchases









