# Thorium vs dB Pulse

The clearest difference is in-app purchases: Thorium at none against dB Pulse's 3. Thorium also leads on ads (none vs shown) and iOS requirement (15.6 vs 26.0). On price, update cadence and device support there is nothing between them.

Both are free to download. dB Pulse sells 3 in-app purchases, starting at $4.99 per 7 days. Thorium asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Thorium | dB Pulse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Size | 157 MB | 12 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CBL solutions bvba](https://appshunter.io/developer/1396744719) | [Sandeep Bhandari](https://appshunter.io/developer/794284640) |

## What reviewers say

### Thorium

[App page](https://appshunter.io/ios/app/thorium/id1396744720)

**Features:** macOS Compatibility

**In-app purchases:** none


### dB Pulse

[App page](https://appshunter.io/ios/app/db-pulse-decibel-meter/id6761124535)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dB Pulse Pro Weekly | $4.99 | per 7 days |
| dB Pulse Pro Annual | $29.99 | per year |
| dB Pulse Pro | $99.99 | one-time |


## Frequently asked questions

### Is Thorium free?

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

### Is dB Pulse free?

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

### Do Thorium or dB Pulse have ads?

dB Pulse shows ads; Thorium does not.

### Which is updated more often, Thorium or dB Pulse?

Thorium ships an update every 3 months, and dB Pulse every 3 months. Most recently, Thorium was updated on October 4, 2026 and dB Pulse on October 3, 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.*