Comparison

KG vs Laser Harp

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

Head to head
About

KG

Features
Read full description

[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. ā—† 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!

About

Laser Harp

Features
Read full description

Turn your screen into a stage of living light. Laser Harp is a touch instrument you actually play - drag your fingers across glowing laser beams and music pours out. In Scale Mode there are no wrong notes. Pick a key, choose a sound, and every swipe sounds intentional. Beginners make beautiful music in seconds; players go deep with real expression. PLAY THE LIGHT • Drag, tap and glide across volumetric laser beams • Scale, Chord, Arpeggio, Split and Dual-Layer play modes • Per-finger expression; pitch bend, vibrato, brightness and volume follow how you move • 13 scales, including Middle-Eastern makam A REAL SOUND ENGINE • 50+ handcrafted instruments: leads, pads, plucks, bells, basses, FX and more • Low-latency synthesis; supersaw, FM, wavetable, filters, reverb, delay, chorus • Stack two instruments, or split bass and lead across the stage BUILT-IN RHYTHM • Analog drum machine with hundreds of grooves • 50+ ready-to-play drum performances across every genre • Lock your tempo and jam RECORD THE SHOW • Record a performance; replay re-stages both the sound AND the light • Export your take as audio and share it A STAGE THAT TRANSFORMS • Themes shift color, fog, glow and sound together • Tune the laser rig: beam count, fan perspective, thickness, glow and haze COMFORT & ACCESSIBILITY • Reduced Flash and a strobe-safety limit for photosensitive players • High contrast, color-blind-safe palette, night-soft mode, larger controls, left-handed layout LASER HARP PRO Unlock everything with a single one-time purchase: remove ads and open every theme, sound and creator tool; yours forever, no subscription. Touch the light. Make it sing.

Screenshots

KG1 screens
Laser Harp4 screens

Verdict

The call

The clearest difference is in-app purchases: KG at none against Laser Harp's 1. KG also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). Laser Harp's advantage is iOS requirement (15.0 vs 26.5). On price and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Laser Harp sells 1 one-off in-app purchase. KG asks for nothing beyond the download.

UpkeepUpdate frequency

KG ships an update every 3 weeks, Laser Harp every 2 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

Scorecard4 real differences Ā· 2 level
KG versus Laser Harp: the parameters behind the verdict, then further details
ParameterKGLaser Harp
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.515.0 — better
Further details — not scored
Size36 MB48 MB
Age rating4+12+
DeveloperKouki YoshimotoAlper Kahriman

In-app purchases

None

KG

No in-app purchases

1 purchases

Laser Harp

One-time1
  • Laser Harp Lifetime$9.99

Questions

Is KG free?
KG is free to download, with no in-app purchases.
Is Laser Harp free?
Laser Harp is free to download, with in-app purchases available.
Do KG or Laser Harp have ads?
Laser Harp shows ads; KG does not.
Which is updated more often, KG or Laser Harp?
KG ships an update every 3 weeks, and Laser Harp every 2 months. Most recently, KG was updated on October 19, 2026 and Laser Harp on October 25, 2026.

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