# Hinge Protractor vs Duo widget

The clearest difference is price: Hinge Protractor at Free against Duo widget's $1.99. Hinge Protractor also leads on device support (3 vs 1). Duo widget's advantage is iOS requirement (17.0 vs 26.0). On ads and in-app purchases there is nothing between them.

Hinge Protractor is free to download; Duo widget costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Hinge Protractor | Duo widget |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 6 MB | 1 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Maksim Tatarchenkov](https://appshunter.io/developer/6810974884) | [晨越 唐](https://appshunter.io/developer/1861360757) |

## What reviewers say

### Hinge Protractor

[App page](https://appshunter.io/ios/app/hinge-protractor/id6812223231)

**Features:** Vision Pro support

**In-app purchases:** none


### Duo widget

[App page](https://appshunter.io/ios/app/duo-widget-battery-and-wifi/id6818605382)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hinge Protractor free?

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

### Is Duo widget free?

Duo widget costs $1.99, with no in-app purchases.

### Do Hinge Protractor or Duo widget have ads?

Neither Hinge Protractor nor Duo widget 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.*