# WattTools vs Compresser

The clearest difference is ads: WattTools at none against Compresser's shown. Compresser's advantage is update cadence (every 6 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. WattTools sells 2 in-app purchases, starting at $0.99 per 7 days and Compresser sells 3 in-app purchases, starting at $8.99 per year. Whichever you choose, the download price is not the number that matters.

WattTools ships an update every 3 weeks, Compresser every 6 days. The most recent releases landed on September 15, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | WattTools | Compresser |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Size | 101 MB | 55 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [源 张](https://appshunter.io/developer/1649775012) | [Maciej Sieminski](https://appshunter.io/developer/1894452820) |

## What reviewers say

### 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 |


### Compresser

[App page](https://appshunter.io/ios/app/compresser-compress-and-convert/id6762507568)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Annual | $8.99 | per year |
| Tip Jar | $0.99 | one-time |
| Premium Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is WattTools free?

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

### Is Compresser free?

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

### Do WattTools or Compresser have ads?

Compresser shows ads; WattTools does not.

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

WattTools ships an update every 3 weeks, and Compresser every 6 days. Most recently, WattTools was updated on September 15, 2026 and Compresser on September 10, 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.*