# Sci vs Noise Meter

The clearest difference is in-app purchases: Sci at none against Noise Meter's 2. Sci also leads on iOS requirement (13.0 vs 15.0). Noise Meter's advantage is update cadence (weekly vs every 5 weeks). On price, ads and device support there is nothing between them.

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

Sci ships an update every 5 weeks, Noise Meter weekly. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sci | Noise Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/noise-meter-noisepo/id6740921533/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 88 MB | 1 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [山东远大朗威教育科技股份有限公司](https://appshunter.io/developer/1197726190) | [利艳 姚](https://appshunter.io/developer/1717030828) |

## What reviewers say

### Sci

[App page](https://appshunter.io/ios/app/sci-lab/id1197726221)

**In-app purchases:** none


### Noise Meter

[App page](https://appshunter.io/ios/app/noise-meter-noisepo/id6740921533)

This utility app measures sound levels in decibels using your device's microphone. It records maximum, minimum, and average dB values, and allows you to capture decibel readings with your camera as evidence. It's designed for ease of use with a friendly interface and threshold setting capabilities.

**Highlights:** Decibel measurement, Max, min, avg dB tracking, Camera capture for evidence, User-friendly interface, Threshold setting, Accurate measurements (20-16,000 Hz)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Lifetime Pro | $2.99 | one-time |


## Frequently asked questions

### Is Sci free?

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

### Is Noise Meter free?

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

### Do Sci or Noise Meter have ads?

Neither Sci nor Noise Meter shows ads.

### Which is updated more often, Sci or Noise Meter?

Sci ships an update every 5 weeks, and Noise Meter weekly. Most recently, Sci was updated on October 17, 2026 and Noise Meter 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.*