# TOSR vs 16 Relay Controller

The clearest difference is iOS requirement: TOSR at 8.0 against 16 Relay Controller's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

TOSR ships an update every 64 months, 16 Relay Controller every 34 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | TOSR | 16 Relay Controller |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 64 months | **Every 34 months** |
| Monetization | Free | — |
| Size | 2 MB | 0 MB |
| Requires iOS | **8.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [飞 吴](https://appshunter.io/developer/645447334) | [Mike Henry](https://appshunter.io/developer/1219782847) |

## What reviewers say

### TOSR

[App page](https://appshunter.io/ios/app/tosr-b-bluetooth/id1004247115)

Control external devices using your computer's USB port or wirelessly via Bluetooth, Zigbee, or WiFi. This application enables remote switching of connected equipment with customizable output modes.

**Highlights:** Computer control via USB, Wireless control via Bluetooth, Zigbee, WiFi, Password support, Latching or momentary output modes, Control external devices

**Features:** macOS Compatibility

**In-app purchases:** none


### 16 Relay Controller

[App page](https://appshunter.io/ios/app/16-relay-controller/id1541478119)

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

**In-app purchases:** none


## Frequently asked questions

### Is TOSR free?

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

### Is 16 Relay Controller free?

16 Relay Controller is free to download, with no in-app purchases.

### Do TOSR or 16 Relay Controller have ads?

Neither TOSR nor 16 Relay Controller shows ads.

### Which is updated more often, TOSR or 16 Relay Controller?

TOSR ships an update every 64 months, and 16 Relay Controller every 34 months. Most recently, TOSR was updated on October 2, 2026 and 16 Relay Controller on October 6, 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.*