# QIoT Link vs Sentry by RF Code

The clearest difference is iOS requirement: QIoT Link at 10.0 against Sentry by RF Code's 15.0. 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.

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on May 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | QIoT Link | Sentry by RF Code |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sentry-by-rf-code/id1645683076/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | — | Free |
| Size | 12 MB | 11 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Queclink Wireless Solutions Co.,Ltd](https://appshunter.io/developer/1529091210) | [RF Code, Inc.](https://appshunter.io/developer/732245715) |

## What reviewers say

### QIoT Link

[App page](https://appshunter.io/ios/app/qiot-link/id1540207059)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sentry by RF Code

[App page](https://appshunter.io/ios/app/sentry-by-rf-code/id1645683076)

Continuously monitors remote IT environments, providing real-time video and thermal data. Receive automated alerts for potential threats to prevent costly IT issues.

**Highlights:** Real-time video monitoring, Thermal activity tracking, Automated threat alerts, Failure-tolerant connection, Critical asset visibility

**In-app purchases:** none


## Frequently asked questions

### Is QIoT Link free?

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

### Is Sentry by RF Code free?

Sentry by RF Code is free to download, with no in-app purchases.

### Do QIoT Link or Sentry by RF Code have ads?

Neither QIoT Link nor Sentry by RF Code shows ads.

### Which is updated more often, QIoT Link or Sentry by RF Code?

QIoT Link ships an update every 7 months, and Sentry by RF Code every 7 months. Most recently, QIoT Link was updated on May 17, 2026 and Sentry by RF Code on September 15, 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.*