# i Sound Level Meter vs 출석왕

The clearest difference is update cadence: 출석왕 at every 4 days against i Sound Level Meter's every 2 months. 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.

i Sound Level Meter ships an update every 2 months, 출석왕 every 4 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | i Sound Level Meter | 출석왕 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (38 ratings)](https://appshunter.io/ios/app/i-sound-level-meter/id912170360/reviews)** | — |
| Number of ratings | **38** | — |
| Positive reviews | 21.8% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 7 MB | 16 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [Taemin Kim](https://appshunter.io/developer/1888391322) |

## What reviewers say

### i Sound Level Meter

[App page](https://appshunter.io/ios/app/i-sound-level-meter/id912170360)

Measure ambient noise levels with your smartphone. Track maximum and minimum decibel readings to understand your sound environment. For best results, a high-performance meter is recommended.

**Highlights:** Measure ambient noise, Track max and min values, Noise meter functionality, Smartphone-based measurement

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


### 출석왕

[App page](https://appshunter.io/ios/app/id6777592605)

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

**In-app purchases:** none


## Frequently asked questions

### Is i Sound Level Meter free?

i Sound Level Meter is free to download, with no in-app purchases.

### Is 출석왕 free?

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

### Do i Sound Level Meter or 출석왕 have ads?

Both i Sound Level Meter and 출석왕 show ads.

### Which is updated more often, i Sound Level Meter or 출석왕?

i Sound Level Meter ships an update every 2 months, and 출석왕 every 4 days. Most recently, i Sound Level Meter was updated on November 9, 2026 and 출석왕 on November 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.*