# Decibel Sound Meter vs SimpleFrames

The clearest difference is ads: SimpleFrames at none against Decibel Sound Meter's shown. SimpleFrames also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Decibel Sound Meter sells 6 in-app purchases, starting at $3.99 per 7 days and SimpleFrames sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Decibel Sound Meter ships an update monthly, SimpleFrames every 2 months. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Decibel Sound Meter | SimpleFrames |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 3 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ungo Inc.](https://appshunter.io/developer/1813952838) | [越 张](https://appshunter.io/developer/1810698182) |

## What reviewers say

### Decibel Sound Meter

[App page](https://appshunter.io/ios/app/decibel-sound-meter-dblyze/id6745800603)

This professional noise analyzer transforms your device into a precise sound level meter. It visualizes sound, tracks noise exposure with compliance features, and offers advanced spectrum analysis. Monitor your environment, protect your hearing, and generate detailed reports.

**Highlights:** Real-time SPL readings, Professional noise dosimeter, Advanced spectrum analyzer (RTA), Dynamic Island & Live Activities integration, Home screen widgets, Data logging and export

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dBlyze Weekly | $3.99 | per 7 days |
| dBlyze Free Trial | $7.99 | per month |
| Remove All Ads | $17.99 | per year |
| Premium Upgrade | $8.99 | one-time |
| Premium Pack | $8.99 | one-time |
| dBlyze Lifetime | $49.99 | one-time |


### SimpleFrames

[App page](https://appshunter.io/ios/app/simpleframes/id6745803868)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 简单抽帧周会员 | $0.99 | per 7 days |
| 简单抽帧月会员 | $2.99 | per month |
| 简单抽帧年会员 | $17.99 | per year |
| 简单抽帧买断 | $29.99 | one-time |


## Frequently asked questions

### Is Decibel Sound Meter free?

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

### Is SimpleFrames free?

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

### Do Decibel Sound Meter or SimpleFrames have ads?

Decibel Sound Meter shows ads; SimpleFrames does not.

### Which is updated more often, Decibel Sound Meter or SimpleFrames?

Decibel Sound Meter ships an update monthly, and SimpleFrames every 2 months. Most recently, Decibel Sound Meter was updated on October 16, 2026 and SimpleFrames on October 7, 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.*