# ConvertX vs WattTools

The clearest difference is update cadence: WattTools at every 3 weeks against ConvertX's every 9 months. ConvertX's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ConvertX sells 3 one-off in-app purchases and WattTools sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ConvertX ships an update every 9 months, WattTools every 3 weeks. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | ConvertX | WattTools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/convertx-currency-converter/id424562537/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 70.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 19 MB | 101 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mallow Technologies Private Limited](https://appshunter.io/developer/416807590) | [源 张](https://appshunter.io/developer/1649775012) |

## What reviewers say

### ConvertX

[App page](https://appshunter.io/ios/app/convertx-currency-converter/id424562537)

This utility app offers comprehensive unit and currency conversion, featuring a vast library of 782 units across 56 categories. It includes popular and rare units, a powerful search function, and a favorites list for quick access. Real-time currency exchange rates are also provided.

**Highlights:** 782 units in 56 categories, Popular and rare unit support, Powerful search functionality, Favorites for quick access, Real-time currency exchange rates, In-built calculator, Customizable themes

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Good | Free | one-time |
| Excellent! | Free | one-time |
| Wow!! | Free | one-time |


### WattTools

[App page](https://appshunter.io/ios/app/watttools/id6476344694)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $0.99 | per 7 days |
| 3Credits | $0.99 | one-time |


## Frequently asked questions

### Is ConvertX free?

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

### Is WattTools free?

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

### Do ConvertX or WattTools have ads?

Neither ConvertX nor WattTools shows ads.

### Which is updated more often, ConvertX or WattTools?

ConvertX ships an update every 9 months, and WattTools every 3 weeks. Most recently, ConvertX was updated on September 10, 2026 and WattTools on September 15, 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.*