Comparison

K5 Alarm vs OPTIC Mobile (Friendly Eagle)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

K5 Alarm

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
Read full description

K5 is a 5 inch color screen GSM + WIFI dual network integrated alarm host. This is a multi-function alarm, can through the way of telephone or SMS control equipment, can also through the phone APP to control it.Can add the remote control on the equipment, magnetic door, infrared, such as accessories, installation area of the device in the event of an emergency it sets off the alarm at the same time through the APP send notifications to your phone.

About

OPTIC Mobile (Friendly Eagle)

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
Read full description

The mobile app allows retrieval of certain number of records from the OPTIC server to view and update them on the mobile device, then saving those records back to server. New records can be created and existing ones can be deleted as well. If a connection to the OPTIC server cannnot be established, saving is done on device - with the possibility of having them uploaded to server manually or automatically as soon as a connection to server is detected. The records operate with default or or custom layouts (templates), automatically downloaded from the server after a successful login. Documents ("Resources" section) can be downloaded to device for later viewing - while disconnected from the Internet - opening with the default device applications. Similar for SDS (Safety Data Sheet) documents. Please keep in mind that the more data downloaded, the longer the waiting time is going to be. Also, extra data charges may incur from your cell service provider - therefore it is strongly recommended to download while on WiFi, as much as possible. The SETTINGS section allows customization of the volume and frequency of the downloads, as well as resetting the app anytime - with deletion of all locally stored app data, in order to free up storage space. The app complements the OPTIC System Web application and its strongest asset is the ability to operate on records and locally downloaded documents while disconnected from the Internet. For the full set of features it is recommended to use the Web application. To log in, use the same Client ID, User Name and Password which you normally would use in the Web application.

Screenshots

K5 Alarm1 screens
OPTIC Mobile (Friendly Eagle)2 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
K5 Alarm versus OPTIC Mobile (Friendly Eagle): the parameters behind the verdict, then further details
ParameterK5 AlarmOPTIC Mobile (Friendly Eagle)
PriceFreeFree
Rating3.5 (2 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings2 — better1
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better12.2
Further details — not scored
Size55 MB70 MB
Age rating4+4+
Developer传林 方FRIENDLY EAGLE SOFTWARE INC.

Customer experience

K5 Alarm

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

OPTIC Mobile (Friendly Eagle)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

K5 Alarm

No in-app purchases

None

OPTIC Mobile (Friendly Eagle)

No in-app purchases

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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