Comparison

iDousyn Lite vs SynthMaster One for iPhone

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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!

About

SynthMaster One for iPhone

This powerful wavetable synthesizer app offers an intuitive workflow for creating new sounds. It features a rich library of wavetables, inspiring factory presets, and real-time modulation feedback for sound design.

Highlights
  • Wavetable synthesis
  • 300 factory presets
  • AUv3 support
  • Files App integration
  • Real-time modulation feedback
  • Semi-modular architecture
  • 32-step arpeggiator/sequencer
Read full description

SynthMaster One for iPhone is KV331 Audio's first full blown synth app for iPhone. It's a powerful wavetable synth with an intuitive workflow. With its simple layout, rich wavetable/waveform content and inspiring factory presets library, designing new sounds with SynthMaster One for iPhone is a joy. SynthMaster One for iPhone is feature wise identical to the desktop version except the following: * 8 voice polyphony (32 for the desktop version) * Comes with 300 presets (1250 for the desktop version) FEATURES * 300 Factory Presets: SynthMaster One iOS comes with inspiring factory presets from a world class team of sound designers: Arksun, Aiyn Zahev, BigTone Studios, Brian Transeau, Bluffmunkey, Bulent Biyikoglu, Gercek Dorman, Dejavu Sound, Fragment Audio, Kurt Ader, Mirko Ruta, Nori Ubukata, Rob Lee, Ufuk Kevser, Selcuk Ergen, The Machine, Vandalism Sound, Venus Theory, Vorpalsound and Xenos Soundworks * AUv3: SynthMaster One iOS supports AudioUnits V3, allowing multiple instances to run under supporting DAW apps like GarageBand, Cubasis or Beat Maker. * Files App Integration: Easily import/export presets, waveforms or scales using the common file browser UI (requires iOS 11+). * Real-time Modulation Feedback: See in real-time how modulation sources and targets change. This is a very helpful feature when designing sounds! * Cross Platform Cloud Synchronization: Easily synchronize your SynthMaster One related data across multiple platforms (Windows, MacOS, iPad, iPhone) * Semi-Modular Architecture: For each SynthMaster One instance, there are 2 oscillators with 2 sub oscillators, 2 Filters, 4 ADSR Envelopes, 3 LFOs, a powerful 16 step arpeggiator/sequencer and also 11 different effects that can be inserted on to 6 FX insert slots. The sub oscillators can be connected to the oscillators in 5 different modes which let you use it as a regular sub oscillator or do complex modulations such as ring modulation, amplitude modulation, phase modulation or frequency modulation. * 32 Step Arpeggiator/Sequencer: The arpeggiator in SynthMaster One features classic arpeggiator modes such as Up, Down, UpDown, DownUp, UpDown2, DownUp2, AsPlayed as well as Sequence, Chord and Arpeggiate modes. * Wavetable Synthesis: SynthMaster One implements true wavetable synthesis which opens up new possibilities for sound design. It comes with a rich content library with hundreds of waveforms and wavetables. * Stereo Oscillators with up to 16 voices Unison: Each of the 2 oscillators in SynthMaster One have stereo output, and can have up to 16 voices "unison". Using the "voices", "voices mix", "detune curve", "detune spread", "pan stread", "tone spread" and "phase spread" parameters, each oscillator can generate a rich "supersaw" type sound. * Zero Delay Feedback Filters: All of the 4 filter categories in SynthMaster One are developed using the zero delay feedback filter technology. With advanced filter parameters like input gain, drive, acid, filter nonlinearities and up to 4 times oversampling you can get that "analog" sound from the filters! * Rich Set of Effects: SynthMaster One features 11 different effect types: Distortion, LoFi, Ensemble, Phaser, 6 Band EQ, Compressor, Vocoder, Delay, Chorus, Tremolo, Reverb. * Microtuning: SynthMaster One supports Scala tuning, so tuning can be set either for each preset or globally by loading from a Scala tuning file. SynthMaster One comes with 300+ scales ranging from 5 note equal tempered scales to 12 note alternate tuning scales. * Preset Browser: SynthMaster One features a comprehensive preset browser with separate search criterias for instrument type, preset attributes, music style or preset author. SUPPORTS * All 64-bit iPad devices * AUv3 Audio Unit Extensions * Note-per-channel MIDI controllers (MPE) * Ableton Link * Interapp Audio and AudioBus * Bluetooth LE MIDI Controllers * AirDrop

Screenshots

iDousyn Lite1 screens
SynthMaster One for iPhone4 screens

Verdict

The call

The clearest difference is ads: SynthMaster One for iPhone at none against iDousyn Lite's shown. SynthMaster One for iPhone also leads on review sentiment (66% vs 36%) and rating (4.8 vs 4.4). On price, ratings volume, update cadence and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. iDousyn Lite sells 1 one-off in-app purchase and SynthMaster One for iPhone sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SynthMaster One for iPhone holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 697 and 331 respectively. Written reviews point the same way: 36% of iDousyn Lite's written reviews are positive against 66% of SynthMaster One for iPhone's.

UpkeepUpdate frequency

iDousyn Lite ships an update every 3 months, SynthMaster One for iPhone every 2 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
iDousyn Lite versus SynthMaster One for iPhone: the parameters behind the verdict, then further details
ParameteriDousyn LiteSynthMaster One for iPhone
PriceFreeFree
Rating4.4 (697 ratings)4.8 (331 ratings) — better
Positive reviews36.4% of reviews66.0% of reviews — better
Number of ratings697 — better331
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.610.0 — better
Further details — not scored
Size67 MB297 MB
Age rating4+4+
DeveloperJorge LozadaKV331 Audio

Customer experience

iDousyn Lite

All ratings697 ratings
Positive84.2%
Neutral4.9%
Negative10.9%
Written reviews11 reviews
Positive36.4%
Neutral0.0%
Negative63.6%

SynthMaster One for iPhone

All ratings331 ratings
Positive94.9%
Neutral2.1%
Negative3.0%
Written reviews50 reviews
Positive66.0%
Neutral6.0%
Negative28.0%

User reviews

iDousyn Lite

From 697 App Store ratings

What we love

  • 🎵 High quality sounds
  • 👍 Well-designed GUI layout

Room to improve

  • 📢 Excessive ads and pop-ups
  • ⏱️ High latency and slow keyboard response
  • 🔄 Intrusive review prompts interrupting usage
  • 🎹 Instrument switching bug causing audio overlap

SynthMaster One for iPhone

From 331 App Store ratings

What we love

  • ✨ Excellent sound quality
  • 🤩 Incredible features for free
  • 👍 Easy to use interface
  • 🎛️ Versatile sound design capabilities
  • 🎵 Great for GarageBand integration

Room to improve

  • 🐛 Frequent crashes
  • 🔌 Issues with GarageBand integration
  • 💸 In-app purchase problems
  • 🔄 Presets not saving
  • 📉 App appears abandoned

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

SynthMaster One for iPhone

Reported bugs

10 issues
  • App crashes when loading saved presets
  • App crashes when setting default sound
  • AUv3 option disappears in GarageBand
  • Inability to reload user patches without crashing
  • Inability to purchase certain IAP packs
Show 5 more
  • Cells don't save, revert to first synth
  • App doesn't function or open in GarageBand
  • Every note is 1 note or lower
  • GUI is cut off on iPhone SE
  • IAA not loading in FL mobile

Requested features

10 requests
  • Fix in-app purchase issues
  • Improve GarageBand AUv3 stability
  • Enable saving of custom presets
  • Address crashing when loading presets
  • Fix note pitch issues
Show 5 more
  • Ensure app is not abandonware
  • Improve UI scaling on smaller screens
  • Fix wavetable scrolling issues
  • Make IAA work properly
  • Allow recording of music

In-app purchases

1 purchases

iDousyn Lite

One-time1
  • Remove Ads$0.99
10 purchases

SynthMaster One for iPhone

One-time10
  • BigTone Club Construction Set$4.99
  • True Trance Sounds Volume 1$4.99
  • Vandalism Future House$4.99
Show 7 more
  • NatLife Retrowave Sounds Vol.1$4.99
  • Demis Hellen Euphoric Trance$4.99
  • NatLife Progressive&Deep Vol.1$4.99
  • Vandalism Shocking Future Bass$4.99
  • Venus Theory Trap Sounds$4.99
  • Desktop Presets Upgrade$9.99
  • SM One Expansions Bundle$24.99

Questions

Is iDousyn Lite free?
iDousyn Lite is free to download, with in-app purchases available.
Is SynthMaster One for iPhone free?
SynthMaster One for iPhone is free to download, with in-app purchases available.
Which has better reviews, iDousyn Lite or SynthMaster One for iPhone?
SynthMaster One for iPhone is rated higher. iDousyn Lite averages 4.4 out of 5 from 697 ratings, while SynthMaster One for iPhone averages 4.8 from 331 ratings.
Do iDousyn Lite or SynthMaster One for iPhone have ads?
iDousyn Lite shows ads; SynthMaster One for iPhone does not.
Which is updated more often, iDousyn Lite or SynthMaster One for iPhone?
iDousyn Lite ships an update every 3 months, and SynthMaster One for iPhone every 2 months. Most recently, iDousyn Lite was updated on October 16, 2026 and SynthMaster One for iPhone on October 14, 2026.

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