# springVerb vs KG

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.

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

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.

## The numbers

| Metric | springVerb | KG |
| --- | --- | --- |
| Price | $4.99 | **$0.49** |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/springverb/id6450971173/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 11 days** |
| Monetization | Paid | — |
| Size | 80 MB | 30 MB |
| Requires iOS | **12.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OSC Audio](https://appshunter.io/developer/1693533681) | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) |

## What reviewers say

### springVerb

[App page](https://appshunter.io/ios/app/springverb/id6450971173)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### KG

[App page](https://appshunter.io/ios/app/kg-square-pro-synthesizer/id6811818639)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*