Comparison

Olympia Core vs AlarmSMS Controller

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

Head to head
About

Olympia Core

Features
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Olympia Core is the official mobile application of Olympia Electronics that allows you to monitor and manage your smart security and fire alarm devices easily and securely. Through the Olympia Electronics ecosystem, you can connect your devices, receive important notifications, and stay informed about the status of your system from anywhere.

About

AlarmSMS Controller

Features
Read full description

AlarmSMS Controller is a simple, flexible GSM alarm control app for security systems that support SMS commands. Instead of typing the same SMS commands every time, you can create clean command buttons for your alarm system and use them whenever you need to arm, disarm, check status, activate stay mode, control siren functions, manage zones, or send any custom command supported by your GSM alarm panel. AlarmSMS Controller is not locked to one alarm brand. You can add your alarm phone number, create your own SMS commands, choose icons and colors, and organize everything in one easy-to-use interface. Main features: โ€ข Control compatible GSM alarm systems by SMS โ€ข Create custom arm, disarm, stay, status, siren, and zone commands โ€ข Add multiple alarm profiles โ€ข Save alarm phone numbers and command presets โ€ข Choose icons and colors for each command โ€ข Organize your most used security commands โ€ข Works with many GSM alarm panels that accept SMS commands โ€ข Backup and restore your setup โ€ข No account required โ€ข Data stored locally on your device Perfect for users who already have a GSM alarm panel and want a faster, cleaner way to send SMS control commands without remembering command codes manually. Important: AlarmSMS Controller does not monitor your alarm system, receive alarm events, or replace a professional security service. The app only helps you prepare and send SMS commands to compatible GSM alarm systems. SMS charges may apply depending on your mobile provider.

Screenshots

Olympia Core4 screens
AlarmSMS Controller4 screens

Verdict

The call

The clearest difference is in-app purchases: Olympia Core at none against AlarmSMS Controller's 1. On price, update cadence, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. AlarmSMS Controller sells 1 one-off in-app purchase. Olympia Core asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

Scorecard1 real difference ยท 5 level
Olympia Core versus AlarmSMS Controller: the parameters behind the verdict, then further details
ParameterOlympia CoreAlarmSMS Controller
PriceFreeFree
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.616.0 โ€” better
Further details โ€” not scored
Size41 MB52 MB
Age rating17+4+
DeveloperOlympia ElectronicsGeorge Alexandrou

In-app purchases

None

Olympia Core

No in-app purchases

1 purchases

AlarmSMS Controller

One-time1
  • AlarmSMS Pro$4.99

Questions

Is Olympia Core free?
Olympia Core is free to download, with no in-app purchases.
Is AlarmSMS Controller free?
AlarmSMS Controller is free to download, with in-app purchases available.
Do Olympia Core or AlarmSMS Controller have ads?
Neither Olympia Core nor AlarmSMS Controller shows ads.
Which is updated more often, Olympia Core or AlarmSMS Controller?
Olympia Core ships an update monthly, and AlarmSMS Controller monthly. Most recently, Olympia Core was updated on October 18, 2026 and AlarmSMS Controller on October 15, 2026.

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