# SeamSmart vs Decibel Detector

The clearest difference is update cadence: SeamSmart at every 4 days against Decibel Detector's every 5 months. Decibel Detector's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SeamSmart ships an update every 4 days, Decibel Detector every 5 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SeamSmart | Decibel Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/decibel-detector/id6745181319/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 months |
| Monetization | — | Free |
| Size | 2 MB | 33 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RWTH Aachen University](https://appshunter.io/developer/371466796) | [北京泰燊信息技术有限公司](https://appshunter.io/developer/1784907008) |

## What reviewers say

### SeamSmart

[App page](https://appshunter.io/ios/app/seamsmart/id6499210520)

**In-app purchases:** none


### Decibel Detector

[App page](https://appshunter.io/ios/app/decibel-detector/id6745181319)

This app provides real-time environmental noise monitoring and data tracking. It offers smart alerts for custom noise thresholds and generates professional PDF reports. Adaptable to various scenarios, it helps users understand acoustic data and identify sound sources.

**Highlights:** Real-time decibel monitoring, Historical data tracking, Customizable smart alerts, Multi-scenario adaptation, Professional PDF reporting, FFT spectrum analysis, Environmental noise classification

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SeamSmart free?

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

### Is Decibel Detector free?

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

### Do SeamSmart or Decibel Detector have ads?

Neither SeamSmart nor Decibel Detector shows ads.

### Which is updated more often, SeamSmart or Decibel Detector?

SeamSmart ships an update every 4 days, and Decibel Detector every 5 months. Most recently, SeamSmart was updated on October 25, 2026 and Decibel Detector on October 24, 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.*