# dB Convert vs Wattage Conversion

The clearest difference is price: Wattage Conversion at Free against dB Convert's $0.29. Wattage Conversion also leads on iOS requirement (15.6 vs 17.0). dB Convert's advantage is in-app purchases (none vs 1) and update cadence (every 8 days vs monthly). On ads and device support there is nothing between them.

Wattage Conversion is free to download; dB Convert costs $0.29 up front. Wattage Conversion sells 1 one-off in-app purchase. dB Convert asks for nothing beyond the download.

dB Convert ships an update every 8 days, Wattage Conversion monthly. The most recent releases landed on August 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | dB Convert | Wattage Conversion |
| --- | --- | --- |
| Price | $0.29 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Monthly |
| Best chart rank | **#155** | — |
| Size | 1 MB | 37 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Curtis](https://appshunter.io/developer/358219019) | [akira ohmachi](https://appshunter.io/developer/1338624340) |

## What reviewers say

### dB Convert

[App page](https://appshunter.io/ios/app/db-convert/id6445955728)

**Currently charting:** #155 Top Paid · Utilities (US App Store)

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

**In-app purchases:** none


### Wattage Conversion

[App page](https://appshunter.io/ios/app/wattage-conversion/id6473688997)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is dB Convert free?

dB Convert costs $0.29, with no in-app purchases.

### Is Wattage Conversion free?

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

### Do dB Convert or Wattage Conversion have ads?

Neither dB Convert nor Wattage Conversion shows ads.

### Which is updated more often, dB Convert or Wattage Conversion?

dB Convert ships an update every 8 days, and Wattage Conversion monthly. Most recently, dB Convert was updated on August 1, 2026 and Wattage Conversion on September 21, 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.*