# K5 Alarm vs OPTIC Mobile (Friendly Eagle)

The clearest difference is rating: OPTIC Mobile (Friendly Eagle) at 5.0 against K5 Alarm's 3.5. K5 Alarm's advantage is iOS requirement (8.0 vs 12.2). On price, ratings volume, update cadence and ads there is nothing between them.

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

OPTIC Mobile (Friendly Eagle) holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

K5 Alarm ships an update fortnightly, OPTIC Mobile (Friendly Eagle) every 3 weeks. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | K5 Alarm | OPTIC Mobile (Friendly Eagle) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/k5-alarm/id1228448767/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/optic-mobile-friendly-eagle/id1459160092/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 55 MB | 70 MB |
| Requires iOS | **8.0** | 12.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [传林 方](https://appshunter.io/developer/699727053) | [FRIENDLY EAGLE SOFTWARE INC.](https://appshunter.io/developer/1459160091) |

## What reviewers say

### K5 Alarm

[App page](https://appshunter.io/ios/app/k5-alarm/id1228448767)

This integrated alarm host connects via GSM and Wi-Fi, offering control through phone calls, SMS, or a dedicated mobile app. It supports various accessories like remote controls and door sensors, sending instant notifications to your phone in emergencies.

**Highlights:** GSM + WIFI dual network integration, Control via phone call, SMS, or app, Supports remote controls, door sensors, and infrared accessories, Instant emergency notifications, 5-inch color screen interface

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

**In-app purchases:** none


### OPTIC Mobile (Friendly Eagle)

[App page](https://appshunter.io/ios/app/optic-mobile-friendly-eagle/id1459160092)

Access and modify records from the OPTIC server on your mobile device. Create, delete, and update entries, with offline capabilities for data and documents. Sync changes back to the server when connected.

**Highlights:** View and update server records, Create and delete new records, Offline data access and saving, Downloadable documents and SDS, Customizable download settings, Syncs with OPTIC Web application

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

**In-app purchases:** none


## Frequently asked questions

### Is K5 Alarm free?

K5 Alarm is free to download, with no in-app purchases.

### Is OPTIC Mobile (Friendly Eagle) free?

OPTIC Mobile (Friendly Eagle) is free to download, with no in-app purchases.

### Which has better reviews, K5 Alarm or OPTIC Mobile (Friendly Eagle)?

OPTIC Mobile (Friendly Eagle) is rated higher. K5 Alarm averages 3.5 out of 5 from 2 ratings, while OPTIC Mobile (Friendly Eagle) averages 5.0 from 1 ratings.

### Do K5 Alarm or OPTIC Mobile (Friendly Eagle) have ads?

Neither K5 Alarm nor OPTIC Mobile (Friendly Eagle) shows ads.

### Which is updated more often, K5 Alarm or OPTIC Mobile (Friendly Eagle)?

K5 Alarm ships an update fortnightly, and OPTIC Mobile (Friendly Eagle) every 3 weeks. Most recently, K5 Alarm was updated on October 13, 2026 and OPTIC Mobile (Friendly Eagle) on October 11, 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.*