# Decibel vs LeztLearn

The clearest difference is in-app purchases: LeztLearn at none against Decibel's 5. Decibel's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Decibel sells 5 in-app purchases, starting at $9.99 per year. LeztLearn asks for nothing beyond the download.

Decibel ships an update every 2 weeks, LeztLearn every 3 months. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Decibel | LeztLearn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/decibel-sound-level-meter/id1624742896/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Freemium | — |
| Size | 18 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sunshine Software Labs](https://appshunter.io/developer/1788219451) | [MI-TECH SARLU](https://appshunter.io/developer/1811170044) |

## What reviewers say

### Decibel

[App page](https://appshunter.io/ios/app/decibel-sound-level-meter/id1624742896)

This app provides precise noise measurement with a real-time decibel gauge and a frequency analyzer for detailed acoustic analysis. It tracks minimum, average, and maximum levels, offering historical graphs for sound fluctuations. Ideal for professionals and enthusiasts needing accurate sound monitoring.

**Highlights:** Real-time decibel gauge, Frequency analyzer (Hz), Min/Avg/Max decibel values, Historical decibel graph, Acoustic analysis tool, Environmental noise monitoring

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Premium Annual Offer | $9.99 | per year |
| 3 Days Free Trial Weekly VIP | $9.99 | per 7 days |
| Get Premium Monthly | $19.99 | per month |
| 7 Day Free Yearly VIP | $29.99 | per year |
| Get Premium Annual | $49.99 | per year |


### LeztLearn

[App page](https://appshunter.io/ios/app/leztlearn/id6779778200)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel free?

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

### Is LeztLearn free?

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

### Do Decibel or LeztLearn have ads?

Neither Decibel nor LeztLearn shows ads.

### Which is updated more often, Decibel or LeztLearn?

Decibel ships an update every 2 weeks, and LeztLearn every 3 months. Most recently, Decibel was updated on October 1, 2026 and LeztLearn on October 5, 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.*