📱 GSM Alarm Controller Take control of your GSM-based alarm systems — anytime, anywhere via SMS. The GSM Alarm Controller app empowers you to remotely manage and control a wide range of GSM-based alarm devices such as Classic 4G+, Delta 4G, Max, and Ultra V1 using simple, predefined SMS commands. Designed for use in both offline and remote areas, this app ensures secure, direct communication with your security systems — even without internet access. Whether you're arming your home alarm, triggering panic mode, or disarming your system, you stay in control with just a few taps. 🔑 Key Features: Supports Multiple Devices Easily manage various GSM alarm systems including Classic 4G+, Delta 4G, Max, and Ultra V1. Add & Manage Devices Add devices by entering a GSM number, custom name, and password for easy access and identification. One-Tap SMS Commands Quickly send commands like Arm, Disarm, Panic, and more via predefined SMS templates — no typing required. Manual Control All messages are sent only when manually triggered by the user, ensuring full transparency and control. Secure & Private The app only sends SMS — it does not read, track, store, or log messages. It also does not access received SMS content. Non-Intrusive The app does not request to be your default SMS handler. All sent messages are visible in your system’s SMS app. Offline Functionality Perfect for remote locations — operates entirely over the GSM network, requiring no internet connection. 📌 Ideal For: Homeowners with GSM alarm systems Security professionals managing multiple locations Remote property or equipment monitoring Stay protected and in control — anytime, anywhere.