Comparison

Synesthesia Synth vs KG

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

Head to head
About

Synesthesia Synth

An experimental audio-visual instrument that allows users to sculpt evolving spatial audio by manipulating floating capsules. Position, rotation, and pulse changes affect tone, texture, and synchronized particle generation. It's a visual synthesizer, not a game.

Highlights
  • Experimental audio-visual instrument
  • Sculpt evolving spatial audio
  • Manipulate floating capsules
  • Control tone, texture, and particles
  • Visual synthesizer
Read full description

Synthaestesia is a free experimental audio-visual instrument. Three capsules float in space. Every contraction produces sound. Move them, rotate them, reshape their pulse — and sculpt evolving spatial audio. Position changes tone. Rotation alters texture. Delay generates synchronized particles. This is not a game. It’s a spatial synth you can see.

About

KG

Features
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[From '80s Legend to Modern Era: Put the Feel of Authentic Hardware in Your Hands] "KG-SQUARE" is an analog modeling synthesizer app that packs the aesthetics and intuitive operation of professional hardware into an iPhone-sized format. While inheriting the simplicity of its predecessor, "FX-SQUARE," this version delivers a massive upgrade to both its sound engine and UI. From thick, punchy synth basses to dreamlike, immersive pads, it features a wide range of high-quality tones ready to elevate modern music production. ◆ Key Features Highly Immersive Hardware-Style UI: Designed with lifelike 3D knobs and LED indicators, giving you the professional feel and excitement of tweaking real gear. KAOSS PHYSICS (XY Pad): Simply glide your finger across the right-side pad to dynamically control Cutoff, Resonance, and effects. Create sweeping, space-like tonal shifts in real time as you play. Two Powerful Effects: Equipped with "REVERB" for deep spatial warmth and "DELAY" to add movement to your echoes. Seamlessly blend them using dedicated knobs. Polished Sound Presets: Carefully selected, massive sounds unique to analog modeling, including MP Bass, MP Lead, MP PolySynth, and more. Smooth Playability: Features responsive mini-keys along with screen-edge protection to prevent accidental touches, keeping you focused entirely on your performance. Perfect as a companion synth for music production, on-the-go sound design, or intuitive finger-play performances. Experience the ultimate analog modeling sound today!

Screenshots

Synesthesia Synth2 screens
KG1 screens

Verdict

The call

The clearest difference is iOS requirement: Synesthesia Synth at 16.0 against KG's 26.5. On price, update cadence, ads 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Synesthesia Synth ships an update every 10 days, KG every 3 weeks. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

Scorecard1 real difference · 8 level
Synesthesia Synth versus KG: the parameters behind the verdict, then further details
ParameterSynesthesia SynthKG
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better26.5
Further details — not scored
Size141 MB36 MB
Age rating4+4+
DeveloperMICHELE ZACCAGNINIKouki Yoshimoto

In-app purchases

None

Synesthesia Synth

No in-app purchases

None

KG

No in-app purchases

Questions

Is Synesthesia Synth free?
Synesthesia Synth is free to download, with no in-app purchases.
Is KG free?
KG is free to download, with no in-app purchases.
Do Synesthesia Synth or KG have ads?
Neither Synesthesia Synth nor KG shows ads.
Which is updated more often, Synesthesia Synth or KG?
Synesthesia Synth ships an update every 10 days, and KG every 3 weeks. Most recently, Synesthesia Synth was updated on November 5, 2026 and KG on November 7, 2026.

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