Comparison

springVerb vs KG

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

Head to head
About

springVerb

This app offers a wide range of vintage and modern spring reverb effects for music production. It features 14 distinct spring modes and extensive controls for deep sound customization, including EQ and automation. Presets can be saved and shared across platforms.

Highlights
  • 14 Spring Reverb Models
  • 16+ In-depth Controls
  • Built-in 3-band EQ
  • Preset Manager
  • Cross-platform Preset Sharing
  • Automation Control
Features
Read full description

Vintage Vibes, Timeless Reverberations Spring reverb has a long history, making its debut on organ sounds and rapidly gaining attention after being built into some of the most famous guitar amps known to man. In today's musical world, spring reverb is now pretty much used on anything that could use just a touch of ambience. Experience Spring in Full Spectrum with 14 Vibrant Spring Modes springVerb is packed with 14 spring modes to give you a wide range of spring sounds to take your sounds to the next level. Fully Customizable Sound for Any Situation Unlock the full sonic potential of each mode with in-depth controls; Mix, Dampening, Ducking, Left/Right Repeats and Decay. Their three band EQ Section (Low, Mid, and High), and master controls (Master Volume & Pan). Seamless Integration Across Platforms. All settings can be saved and loaded in your sessions as well as cross platform presets. All parameters offer automation control to get the most expressive sound. Features - 14 Spring Reverb Models; ranging from early/vintage styles to creatively inspiring and modern/futuristic - Over 16 In-depth controls to sculpt your reverbs, including: Pre Delay, Decay, Damping, Repeat Speed, Ducking, and more! - Built-in 3-band EQ section for additional sonic character control - Preset Manager with Save, Save As, Rename, and Delete functionality - Over 20 Factory presets, including both Send and Insert styles - Cross-platform support: presets can be shared between iOS and macOS & Windows

About

KG

Features
Read full description

KKG-SQUARE Pro is a landscape-first virtual analog synthesizer for iPhone. Classic panel layout, cool charcoal chassis, and a sharp cyan accent—built to feel like hardware you can play anywhere. Features 4-oscillator virtual analog engine Filter, filter envelope, amp envelope, and LFO Chorus, delay, and reverb with per-effect on/off and depth Arpeggiator and step sequencer Hold, portamento, and tempo-linked performance modes Full-width playable keyboard with octave shift MIDI input support Built-in voice presets Make bass, leads, pads, and evolving textures—fast—without leaving your phone.

Screenshots

springVerb4 screens
KG1 screens

Verdict

The call

The clearest difference is update cadence: KG at every 11 days against springVerb's every 5 months. KG also leads on price ($0.49 vs $4.99). springVerb's advantage is iOS requirement (12.0 vs 26.5). On ads, in-app purchases 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

springVerb costs $4.99 and KG $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

springVerb ships an update every 5 months, KG every 11 days. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
springVerb versus KG: the parameters behind the verdict, then further details
ParameterspringVerbKG
Price$4.99$0.49 — better
Rating3.9 (7 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 5 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better26.5
Further details — not scored
Size80 MB30 MB
Age rating4+4+
DeveloperOSC AudioKouki Yoshimoto

In-app purchases

None

springVerb

No in-app purchases

None

KG

No in-app purchases

Questions

Is springVerb free?
springVerb costs $4.99, with no in-app purchases.
Is KG free?
KG costs $0.49, with no in-app purchases.
Do springVerb or KG have ads?
Neither springVerb nor KG shows ads.
Which is updated more often, springVerb or KG?
springVerb ships an update every 5 months, and KG every 11 days. Most recently, springVerb was updated on October 31, 2026 and KG on October 30, 2026.

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