# Seivy App vs Audio Decibels

The clearest difference is price: Seivy App at Free against Audio Decibels's $0.49. Audio Decibels's advantage is device support (5 vs 2) and iOS requirement (15.6 vs 18.2). On update cadence, ads and in-app purchases there is nothing between them.

Seivy App is free to download; Audio Decibels costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 27, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Seivy App | Audio Decibels |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 38 MB | 1 MB |
| Requires iOS | 18.2 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [JULIAN FELIPE AUSIQUE CHACON](https://appshunter.io/developer/1740159244) | [Juan Camilo Marin Ochoa](https://appshunter.io/developer/1596861993) |

## What reviewers say

### Seivy App

[App page](https://appshunter.io/ios/app/seivy-app/id6483493609)

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

**In-app purchases:** none


### Audio Decibels

[App page](https://appshunter.io/ios/app/audio-decibels/id6504136351)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Seivy App free?

Seivy App is free to download, with no in-app purchases.

### Is Audio Decibels free?

Audio Decibels costs $0.49, with no in-app purchases.

### Do Seivy App or Audio Decibels have ads?

Neither Seivy App nor Audio Decibels shows ads.

### Which is updated more often, Seivy App or Audio Decibels?

Seivy App ships an update monthly, and Audio Decibels monthly. Most recently, Seivy App was updated on October 27, 2026 and Audio Decibels on October 20, 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.*