# Perxcept vs Decibel Shield

The clearest difference is rating: Decibel Shield at 4.7 against Perxcept's 3.7. Decibel Shield also leads on update cadence (daily vs every 2 months) and ratings volume (632 vs 3). Perxcept's advantage is in-app purchases (none vs 4) and review sentiment (100% vs 77%). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Decibel Shield sells 4 in-app purchases, starting at $1.99 per 7 days. Perxcept asks for nothing beyond the download.

Decibel Shield holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Decibel Shield has 632 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of Perxcept's written reviews are positive against 77% of Decibel Shield's, so the app with the better star average is not the one people write more warmly about.

Perxcept ships an update every 2 months, Decibel Shield daily. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Perxcept | Decibel Shield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/perxcept/id1589027246/reviews) | **[4.7 (632 ratings)](https://appshunter.io/ios/app/decibel-shield-db-meter/id6461600902/reviews)** |
| Number of ratings | 3 | **632** |
| Positive reviews | **100.0% of reviews** | 76.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 21 MB | 43 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZoomRx Inc.](https://appshunter.io/developer/354912995) | [APPSTACK LLC](https://appshunter.io/developer/1454414263) |

## What reviewers say

### Perxcept

[App page](https://appshunter.io/ios/app/perxcept/id1589027246)

This Safari Web Extension passively tracks your exposure to healthcare content on select websites. It collects no personal information and aims to keep doctors, patients, and hospitals informed about healthcare news. Participation is currently invite-based.

**Highlights:** Passive content exposure monitoring, Healthcare content focus, No personal information collection, Safari Web Extension, Invite-based participation

**Features:** Safari Extension

**In-app purchases:** none


### Decibel Shield

[App page](https://appshunter.io/ios/app/decibel-shield-db-meter/id6461600902)

Measure and track sound levels in real-time with this user-friendly decibel meter. Log historical data, integrate with Apple Health, and gain insights into your sound environment. Includes a white noise generator for focused listening.

**Highlights:** Real-time decibel monitoring, Historical data tracking, Apple Health integration, White noise generator, iCloud sync, Location tagging, Background processing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $1.99 | per 7 days |
| Premium Monthly | $4.99 | per month |
| Annual Membership | $44.99 | per year |
| Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is Perxcept free?

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

### Is Decibel Shield free?

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

### Which has better reviews, Perxcept or Decibel Shield?

Decibel Shield is rated higher. Perxcept averages 3.7 out of 5 from 3 ratings, while Decibel Shield averages 4.7 from 632 ratings.

### Do Perxcept or Decibel Shield have ads?

Neither Perxcept nor Decibel Shield shows ads.

### Which is updated more often, Perxcept or Decibel Shield?

Perxcept ships an update every 2 months, and Decibel Shield daily. Most recently, Perxcept was updated on October 24, 2026 and Decibel Shield on October 21, 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.*