# Wattr vs ONWATT

The clearest difference is iOS requirement: ONWATT at 14.0 against Wattr's 16.6. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Wattr | ONWATT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Size | 61 MB | 156 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sempl](https://appshunter.io/developer/1705892374) | [Alpha ESS Co., Ltd.](https://appshunter.io/developer/1088168712) |

## What reviewers say

### Wattr

[App page](https://appshunter.io/ios/app/wattr/id6465175618)

**Features:** Vision Pro support

**In-app purchases:** none


### ONWATT

[App page](https://appshunter.io/ios/app/onwatt/id6779455028)

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

**In-app purchases:** none


## Frequently asked questions

### Is Wattr free?

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

### Is ONWATT free?

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

### Do Wattr or ONWATT have ads?

Neither Wattr nor ONWATT shows ads.

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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.*