# Relativity Widget vs AVR Link

The clearest difference is in-app purchases: Relativity Widget at none against AVR Link's 3. Relativity Widget also leads on iOS requirement (14.0 vs 17.0). AVR Link's advantage is ratings volume (8 vs 2) and device support (4 vs 2). On price, rating and ads there is nothing between them.

Both are free to download. AVR Link sells 3 in-app purchases, starting at $1.99 per month. Relativity Widget asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Relativity Widget against 5.0 for AVR Link. Both are backed by a comparable volume of ratings — 2 and 8 respectively.

## The numbers

| Metric | Relativity Widget | AVR Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/relativity-widget/id1534420574/reviews) | [5.0 (8 ratings)](https://appshunter.io/ios/app/avr-link/id6807123807/reviews) |
| Number of ratings | 2 | **8** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | **Free** | Subscription |
| Size | 1 MB | 11 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Eliott Morgensztern](https://appshunter.io/developer/1478504124) | [Oliver Larsson](https://appshunter.io/developer/1758786632) |

## What reviewers say

### Relativity Widget

[App page](https://appshunter.io/ios/app/relativity-widget/id1534420574)

Visualize Einstein's theories of relativity directly on your home screen. Choose between Special Relativity to see time dilation in a spaceship or General Relativity to observe time differences near a black hole.

**Highlights:** Special Relativity visualization, General Relativity visualization, Time dilation display, Home screen integration, Customizable speed/distance settings

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

**In-app purchases:** none


### AVR Link

[App page](https://appshunter.io/ios/app/avr-link/id6807123807)

Control your compatible AV receiver from your Mac, iPhone, and Apple Watch. Manage power, volume, input selection, and speaker zones effortlessly. Offers quick access from your Mac's menu bar and companion apps.

**Highlights:** Power and standby control, Volume adjustment, Mute/unmute functionality, Input selection, Independent zone control, Mac menu bar access, iPhone and Apple Watch app

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $14.99 | per year |
| Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Relativity Widget free?

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

### Is AVR Link free?

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

### Which has better reviews, Relativity Widget or AVR Link?

Relativity Widget and AVR Link are both rated 5.0 out of 5 on the App Store, from 2 and 8 ratings respectively.

### Do Relativity Widget or AVR Link have ads?

Neither Relativity Widget nor AVR Link 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.*