# Vocala vs Koi Shape

The clearest difference is in-app purchases: Koi Shape at none against Vocala's 2. Koi Shape also leads on update cadence (monthly vs every 15 months). Vocala's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Vocala sells 2 in-app purchases, starting at $1.99 per month. Koi Shape asks for nothing beyond the download.

Vocala ships an update every 15 months, Koi Shape monthly. The most recent releases landed on September 27, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Vocala | Koi Shape |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vocala/id1546459735/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 44 MB | 26 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CGPills SL](https://appshunter.io/developer/404811123) | [QUY DIEN LE](https://appshunter.io/developer/1745588028) |

## What reviewers say

### Vocala

[App page](https://appshunter.io/ios/app/vocala/id1546459735)

This app monitors real-time sound levels, displaying decibel readings with visual feedback. It alerts users when noise exceeds customizable thresholds, helping to maintain quiet environments for focus and comfort. The app prioritizes privacy by not recording or storing any audio.

**Highlights:** Real-time decibel meter, Animated visualizer, Customizable warning thresholds, Haptic alerts, Session recording with stats, Beautiful themes, Keeps screen on

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vocala Pro | $1.99 | per month |
| Vocala Pro | $9.99 | per year |


### Koi Shape

[App page](https://appshunter.io/ios/app/koi-shape/id6745516636)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vocala free?

Vocala is free to download, with in-app purchases available.

### Is Koi Shape free?

Koi Shape is free to download, with no in-app purchases.

### Do Vocala or Koi Shape have ads?

Koi Shape shows ads; Vocala does not.

### Which is updated more often, Vocala or Koi Shape?

Vocala ships an update every 15 months, and Koi Shape monthly. Most recently, Vocala was updated on September 27, 2026 and Koi Shape on October 6, 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.*