# RK Link vs IFS Field Operator

The clearest difference is update cadence: IFS Field Operator at fortnightly against RK Link's every 4 months. RK Link's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

RK Link ships an update every 4 months, IFS Field Operator fortnightly. The most recent releases landed on September 14, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | RK Link | IFS Field Operator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rk-link/id1422964820/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 16 MB | 193 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [理研計器株式会社](https://appshunter.io/developer/1422964819) | [IFS Corporation](https://appshunter.io/developer/477960708) |

## What reviewers say

### RK Link

[App page](https://appshunter.io/ios/app/rk-link/id1422964820)

Connect a portable gas monitor to your smartphone via Bluetooth to receive real-time alerts for gas, man-down, and panic alarms. Automatically send emergency emails with location data to up to 100 registered destinations. View gas concentrations and adjust device settings remotely.

**Highlights:** Real-time alarm alerts (gas, man-down, panic), Automatic emergency email notifications, GPS location data in alerts, Gas concentration display, Remote device setting changes, Up to 100 email destinations

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

**In-app purchases:** none


### IFS Field Operator

[App page](https://appshunter.io/ios/app/ifs-field-operator/id6744122228)

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

**In-app purchases:** none


## Frequently asked questions

### Is RK Link free?

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

### Is IFS Field Operator free?

IFS Field Operator is free to download, with no in-app purchases.

### Do RK Link or IFS Field Operator have ads?

Neither RK Link nor IFS Field Operator shows ads.

### Which is updated more often, RK Link or IFS Field Operator?

RK Link ships an update every 4 months, and IFS Field Operator fortnightly. Most recently, RK Link was updated on September 14, 2026 and IFS Field Operator on September 8, 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.*