Comparison

Motion Synth vs Flynth

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

Head to head
About

Motion Synth

This app turns your iPhone or iPod touch into a musical instrument. Play notes with touch and control sound with motion. It can be used standalone, with other iOS music apps, or even external hardware and laptop software.

Highlights
  • Play notes via touch
  • Shape sound through motion
  • Control in-app sounds
  • Control other iOS music apps
  • Control external hardware synths
  • Control laptop audio/visual software
Features
Read full description

Music through motion: The AUUG Motion Synth transforms your iPhone or iPod touch into an expressive musical instrument that lets you play notes via touch and shape their sound through motion. Visit http://www.auug.com to see a demonstration video. Available here is the free version of the AUUG Motion Synth App, designed to allow users to easily experience motion-based music creation. Follow the in-app video tutorial to learn how to play the musical instrument sounds included with the app (See 'SETUP VIDEO' button). An upgraded version of the app is also available, and has been carefully designed to work with the AUUG Motion Synth Grip. Together, the Motion Synth App and Grip transform your iPhone or iPod touch into a practical and powerful musical instrument. Get yours here: http://www.auug.com/order/ ------ Play in-app sounds, iOS music apps (e.g. GarageBand), or laptop software through movement: The AUUG Motion Synth tracks your movements and screen touches to expressively play in-app musical sounds. The AUUG Motion Synth also allows you to play the sounds of other iOS music apps, giving you access to a vast array of sounds and effects. You can also play external devices like hardware synths or vocal harmonizers as well as control audio or visual software on a laptop (via WiFi or cabled connections). The Motion Synth app is also compatible with the Music IO app, allowing you to control your laptop software via your iPhone cable (Lightning). ------ Use the Motion Synth App by itself or with a Motion Synth Grip: The Motion Synth App has two modes: 1) Single-Key mode (free version): This Motion Synth App mode allows you to quickly engage with motion-based music control, and includes tutorial videos explaining how to use the in-app sounds. 2) Multi-Key mode (upgrade): This Motion Synth App mode is designed to work with the AUUG Motion Synth Grip: a physical holder that securely attaches your iPhone or iPod touch to your hand, thereby improving the dexterity and accuracy with which you can trigger notes via the touch screen.

About

Flynth

This versatile synthesizer app offers a wide range of sounds from leads to bass and pads. Create unique sounds by tweaking parameters or explore factory presets. It supports MIDI input, AudioUnit integration, and includes a built-in arpeggiator and effects for music production.

Highlights
  • 8-voice polyphony
  • 3 Oscillators with pulse width and sub
  • ADSR Envelope editor
  • Low-pass Filter with ADSR
  • 2 configurable LFOs
  • Build-in Arpeggiator
  • 4 FXs (TubeAmp, Phaser, Delay, reverb)
  • Live recording + export
Read full description

Flynth is Fingerlab's versatile and intuitive synthesizer for iPhone, iPad & Mac — designed for musicality and easy use. From leads to bass lines, organs and pads, Flynth covers a wide sound range. Browse 80 factory presets to explore its sonic capabilities, or tweak the knobs and combine parameters to create your own unique sounds. Connect any MIDI keyboard, load Flynth as an AUv3 in your favorite DAW, fire up the Arpeggiator, add some FX, and record your track with the built-in live recording module. Flynth is a universal purchase — one buy covers iPhone, iPad & Mac. Free version includes 12 factory presets and a selection of core features. Get the Full Version IAP to unlock everything. Features: • 8-voice polyphony & 6 octaves • 3 Oscillators (Sine, Triangle, Square, Sawtooth, Pulse Width, Sub) • ADSR Envelope editor • Low-pass Moog Ladder filter with ADSR • Vibrato • 2 configurable LFOs • 80 Factory presets & Preset Randomizer • Built-in Arpeggiator • 4 FX: Tube Amp, Phaser, Delay & Reverb • Live recording & export • Full MIDI & MIDI Mapping support • AudioBus & Inter-App Audio (iOS) • Full AudioUnit AUv3 support Questions or feedback? We'd love to hear from you: contact@fingerlab.net Stay tuned! The Fingerlab Team

Screenshots

Motion Synth4 screens
Flynth4 screens

Verdict

The call

The clearest difference is rating: Flynth at 4.3 against Motion Synth's 3.5. Flynth also leads on device support (4 vs 2). Motion Synth's advantage is in-app purchases (none vs 1) and review sentiment (73% vs 50%). On price, ratings volume, update cadence and ads 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. Flynth sells 1 one-off in-app purchase. Motion Synth asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flynth holds the better App Store score, 4.3 against 3.5. Both are backed by a comparable volume of ratings — 40 and 55 respectively. Written reviews complicate that: 73% of Motion Synth's written reviews are positive against 50% of Flynth's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Motion Synth versus Flynth: the parameters behind the verdict, then further details
ParameterMotion SynthFlynth
PriceFreeFree
Rating3.5 (40 ratings)4.3 (55 ratings) — better
Positive reviews73.3% of reviews — better50.0% of reviews
Number of ratings4055 — better
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS9.0 — better15.0
Further details — not scored
Size48 MB17 MB
Age rating4+4+
DeveloperAUUGFingerlab

Customer experience

Motion Synth

All ratings40 ratings
Positive60.0%
Neutral5.0%
Negative35.0%
Written reviews30 reviews
Positive73.3%
Neutral0.0%
Negative26.7%

Flynth

All ratings55 ratings
Positive80.0%
Neutral9.1%
Negative10.9%
Written reviews40 reviews
Positive50.0%
Neutral22.5%
Negative27.5%

In-app purchases

None

Motion Synth

No in-app purchases

1 purchases

Flynth

One-time1
  • Full Version$7.99

Questions

Is Motion Synth free?
Motion Synth is free to download, with no in-app purchases.
Is Flynth free?
Flynth is free to download, with in-app purchases available.
Which has better reviews, Motion Synth or Flynth?
Flynth is rated higher. Motion Synth averages 3.5 out of 5 from 40 ratings, while Flynth averages 4.3 from 55 ratings.
Do Motion Synth or Flynth have ads?
Neither Motion Synth nor Flynth shows ads.
Which is updated more often, Motion Synth or Flynth?
Motion Synth ships an update every 4 months, and Flynth every 4 months. Most recently, Motion Synth was updated on October 24, 2026 and Flynth on October 29, 2026.

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