KG vs Aether Learn
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
KG
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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. β 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!
Aether Learn
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Aether Learn teaches you how sound and synthesizers actually work, one hands-on lesson at a time. No jargon, no prerequisites. Every concept comes with a real synth engine you play with your finger, so you hear the idea the moment you read it. Start from the very beginning: what sound is, how frequency becomes pitch, and why a wave's shape decides its character. Then build up through the tools real producers use every day. WHAT YOU LEARN - Sound and frequency: vibration, pitch, amplitude, and the difference between loudness you measure and loudness you hear - Waveforms and harmonics: watch a bright wave get built from pure sine waves, one at a time, until it forms a full saw - Subtractive synthesis: shape tone with a low-pass filter, resonance, and the classic filter sweep - Envelopes: attack, hold, decay, sustain, release, and delay, shaping how a note lives over time - Modulation: LFOs, vibrato, tremolo, and the rhythmic filter wobble at the heart of bass music HOW IT WORKS Each lesson has three steps. Learn the idea in plain language, watch a short demo that moves the controls for you, then play with a real, audio-reactive instrument built into the app. You see the waveform, the harmonics, the filter curve, and the envelope respond in real time as you turn the knobs. Built for curiosity. Whether you have never touched a synth or you want to finally understand the gear you already own, Aether Learn gets you from zero to making sounds you understand. Best suited for absolute beginners who want solid foundations to carry into any DAW or software synthesizer when they start producing music.
Screenshots
Verdict
The clearest difference is price: KG at Free against Aether Learn's $2.99. Aether Learn's advantage is iOS requirement (17.0 vs 26.5). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
KG is free to download; Aether Learn costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
KG ships an update every 3 weeks, Aether Learn every 4 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.
| Parameter | KG | Aether Learn |
|---|---|---|
| Price | Free β better | $2.99 |
| Update frequency | Every 3 weeks β better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 26.5 | 17.0 β better |
| Further details β not scored | ||
| Size | 36 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Kouki Yoshimoto | Diego Ponciano |
In-app purchases
KG
No in-app purchases
Aether Learn
No in-app purchases









