Comparison

SynthMaster One vs MP4 to M4A Converter

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

Head to head
About

SynthMaster One

This powerful wavetable synthesizer app offers an intuitive workflow for creating unique sounds. It features a rich library of wavetables, inspiring presets, and a semi-modular architecture for deep sound design. Easily sync data across devices and integrate with DAWs.

Highlights
  • Wavetable synthesis
  • Semi-modular architecture
  • 650 factory presets
  • AUv3 support
  • Cross-platform cloud sync
  • Real-time modulation feedback
  • 32-step arpeggiator/sequencer
Read full description

SynthMaster One iOS is KV331 Audio's first full blown universal synth app on iOS platform. 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 iOS is a joy. SynthMaster One iOS is feature wise identical to the desktop version except the following: * 16 voice polyphony (32 for the desktop version) * Comes with 650 presets (1250 for the desktop version) FEATURES * Universal App: SynthMaster One is now a universal standalone/AUv3 synth app running on iPhone 7 and above. * 650 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 * Bluetooth LE MIDI Controllers * AirDrop

About

MP4 to M4A Converter

Effortlessly extract high-quality audio from MP4 video files. This application provides a quick and secure way to convert videos into M4A audio, perfect for saving music, podcasts, or lectures with a simple, one-tap process.

Highlights
  • High-quality M4A output
  • Fast and secure conversion
  • Simple, user-friendly design
  • Supports large MP4 files
  • One-tap conversion
Features
Read full description

MP4 to M4A Converter – Simple & Fast Audio Extraction Easily convert your MP4 videos into high-quality M4A audio files in just a few seconds. Whether you want to save music, lectures, podcasts, or any audio from a video, this app makes the process quick and effortless. With a clean interface and smooth performance, you can convert files with just one tap — no technical skills required. Features: • High-quality M4A output • Fast and secure conversion • Simple, user-friendly design • Supports large MP4 files Download MP4 to M4A Converter today and turn your videos into audio instantly.

Screenshots

SynthMaster One4 screens
MP4 to M4A Converter4 screens

Verdict

The call

The clearest difference is in-app purchases: MP4 to M4A Converter at none against SynthMaster One's 10. MP4 to M4A Converter also leads on rating (5.0 vs 4.7). SynthMaster One's advantage is ratings volume (744 vs 1) and iOS requirement (10.0 vs 18.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

SynthMaster One costs $0.99 and MP4 to M4A Converter $0.29 up front. SynthMaster One sells 10 one-off in-app purchases. MP4 to M4A Converter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MP4 to M4A Converter holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SynthMaster One has 744 ratings behind it against 1, so its average is the more settled of the two.

Scorecard5 real differences · 5 level
SynthMaster One versus MP4 to M4A Converter: the parameters behind the verdict, then further details
ParameterSynthMaster OneMP4 to M4A Converter
Price$0.99$0.29 — better
Rating4.7 (744 ratings)5.0 (1 ratings) — better
Positive reviews63.8% of reviews—
Number of ratings744 — better1
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better18.0
Further details — not scored
Size402 MB4 MB
Age rating4+4+
DeveloperKV331 AudioAHMAD ALMHASNEH

Bugs and requests

SynthMaster One

Reported bugs

4 issues
  • Stuck notes and MIDI issues
  • Preset loading crashes
  • Restore purchases not working
  • Incompatibility with certain DAWs

Requested features

4 requests
  • Add custom wavetable support
  • Improve MIDI mapping and MPE functionality
  • Optimize performance on older devices
  • Streamline preset management and browsing

MP4 to M4A Converter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

SynthMaster One

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
  • Venus Theory Trap Sounds$4.99
  • Vandalism Shocking Future Bass$4.99
  • NatLife Progressive&Deep Vol.1$4.99
  • Desktop Presets Upgrade$7.99
  • SM One Expansions Bundle$24.99
None

MP4 to M4A Converter

No in-app purchases

Questions

Is SynthMaster One free?
SynthMaster One costs $0.99, and also offers in-app purchases.
Is MP4 to M4A Converter free?
MP4 to M4A Converter costs $0.29, with no in-app purchases.
Which has better reviews, SynthMaster One or MP4 to M4A Converter?
MP4 to M4A Converter is rated higher. SynthMaster One averages 4.7 out of 5 from 744 ratings, while MP4 to M4A Converter averages 5.0 from 1 ratings.
Do SynthMaster One or MP4 to M4A Converter have ads?
Neither SynthMaster One nor MP4 to M4A Converter shows ads.

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