# TheoMeter vs Sound Meter

The clearest difference is in-app purchases: TheoMeter at none against Sound Meter's 2. TheoMeter also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | TheoMeter | Sound Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Size | 2 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Frankie Wellman](https://appshunter.io/developer/6780719441) | [VELTORA LLC](https://appshunter.io/developer/6780920672) |

## What reviewers say

### TheoMeter

[App page](https://appshunter.io/ios/app/theometer/id6790203603)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 TheoMeter free?

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

### Is Sound Meter free?

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

### Do TheoMeter or Sound Meter have ads?

Sound Meter shows ads; TheoMeter does not.

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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.*