# Sensor Viewer vs RF Link

The clearest difference is device support: RF Link at 3 against Sensor Viewer's 1. RF Link also leads on iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Sensor Viewer sells 2 in-app purchases, starting at $0.99 per year and RF Link sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Sensor Viewer | RF Link |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 2 MB | 47 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Salisbury Apps](https://appshunter.io/developer/1095141053) | [Yogesh Yadav](https://appshunter.io/developer/6800277487) |

## What reviewers say

### Sensor Viewer

[App page](https://appshunter.io/ios/app/sensor-viewer/id6765755753)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $0.99 | per year |
| One time / Lifetime purchase | $1.99 | one-time |


### RF Link

[App page](https://appshunter.io/ios/app/rf-link-signal-strength-los/id6800277485)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RF Link Pro Monthly | $1.99 | per month |
| RF Link Pro Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is Sensor Viewer free?

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

### Is RF Link free?

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

### Do Sensor Viewer or RF Link have ads?

Neither Sensor Viewer nor RF 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.*