# o46scope vs Sound Meter

The clearest difference is ads: o46scope at none against Sound Meter's shown. o46scope also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). Sound Meter's advantage is update cadence (weekly vs every 6 weeks). On price and in-app purchases there is nothing between them.

Both are free to download. o46scope sells 1 in-app purchase, starting at $19.99 per year and Sound Meter sells 2 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

o46scope ships an update every 6 weeks, Sound Meter weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | o46scope | Sound Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Weekly** |
| Size | 53 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Shinsuke Tsutsui](https://appshunter.io/developer/1707110915) | [VELTORA LLC](https://appshunter.io/developer/6780920672) |

## What reviewers say

### o46scope

[App page](https://appshunter.io/ios/app/o46scope/id6754371407)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $19.99 | per year |


### Sound Meter

[App page](https://appshunter.io/ios/app/sound-meter-db-spl-veltora/id6802572142)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Annual | $1.99 | per year |
| Premium Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is o46scope free?

o46scope is free to download, with in-app purchases available.

### Is Sound Meter free?

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

### Do o46scope or Sound Meter have ads?

Sound Meter shows ads; o46scope does not.

### Which is updated more often, o46scope or Sound Meter?

o46scope ships an update every 6 weeks, and Sound Meter weekly. Most recently, o46scope was updated on October 25, 2026 and Sound 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.*