# 噪音检测仪 vs Roost

The clearest difference is review sentiment: 噪音检测仪 at 100% against Roost's 0%. 噪音检测仪 also leads on iOS requirement (10.0 vs 13.0). Roost's advantage is monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 噪音检测仪 sells 3 in-app purchases, starting at $0.49 per month and Roost sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

噪音检测仪 ships an update monthly, Roost every 3 weeks. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 噪音检测仪 | Roost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pro/id1511859076/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 10 MB | 28 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [传胜 贾](https://appshunter.io/developer/789568029) | [ERIC MATTHEW DRAPER](https://appshunter.io/developer/1876064291) |

## What reviewers say

### 噪音检测仪

[App page](https://appshunter.io/ios/app/pro/id1511859076)

Record sound environments and display real-time decibel levels. Capture high-quality video with added watermarks to prevent piracy. Set custom recording durations for your needs.

**Highlights:** Record sound environments, Real-time decibel display, Set recording duration, High-quality video recording, Add watermark to videos

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly | $0.49 | per month |
| VIP Annual | $3.99 | per year |
| VIP  Permanent | $6.99 | one-time |


### Roost

[App page](https://appshunter.io/ios/app/roost-backyard-chickens/id6761755516)

Manage your backyard chickens with this app. Track individual birds, log egg production, monitor health, and access breed information. It also helps with coop maintenance and supply costs, all while keeping your data private and offline.

**Highlights:** Track individual birds with photos, Log egg collection and production, Monitor bird health events, Breed encyclopedia, Egg production charts, Cost tracking for feed and supplies, Coop maintenance reminders

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Roost | $4.99 | one-time |


## Frequently asked questions

### Is 噪音检测仪 free?

噪音检测仪 is free to download, with in-app purchases available.

### Is Roost free?

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

### Do 噪音检测仪 or Roost have ads?

Neither 噪音检测仪 nor Roost shows ads.

### Which is updated more often, 噪音检测仪 or Roost?

噪音检测仪 ships an update monthly, and Roost every 3 weeks. Most recently, 噪音检测仪 was updated on October 15, 2026 and Roost on October 9, 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.*