Ajax Security System

Ajax Security System

Ajax Systems Inc
★★★★☆ 4.4 Tools v2.20.3 1,000,000+
Verified Safe & Direct
Download APK Google Play
Ajax Security System Screenshot 1Ajax Security System Screenshot 2Ajax Security System Screenshot 3Ajax Security System Screenshot 4Ajax Security System Screenshot 5Ajax Security System Screenshot 6
Version
2.20.3
Downloads
1,000,000+
Updated
Jun 29, 2026
Developer
Ajax Systems Inc
Category
Tools
Content Rating
Everyone
Package
com.ajaxsystems
Platform
Android

Download Sources

Device Configuration

Split APKs Installation Guide

Some apps are distributed as Split APKs (multiple .apk files packaged together) to optimize resources. Standard Android installers cannot open them.

1. Download Split APKs Installer (SAI) from Google Play Store.
2. Download the app archive (.apks) using the download sources listed above.
3. Open SAI, click "Install APKs", choose the downloaded archive, and click Install.

What's New

- Support for new devices that will become available soon, and minor fixes improving app performance.

About this app

Ajax Security System keeps you informed about what's happening at your space. Monitor Ajax system status, receive instant alerts, and manage security, video surveillance, and automation through a single intuitive interface. The app is available for Android OS smartphones, Wear OS smartwatches, and Android TV devices.

IN THE APP:
- Arm and disarm your system with one tap
- Monitor events and system status in real time
- Receive critical alerts — even when your phone is in silent mode
- View visual alarm verification with photos and video
- Create automation scenarios
- Use the mobile panic button in emergencies
- Manage multiple spaces from one account, and more

Over 4.5 million end users in more than 180 countries worldwide trust Ajax. We offer end-to-end solutions for protecting homes and businesses оf any scale. Ajax product portfolio includes over 300 devices for:
- Intrusion protection
- Video surveillance
- Fire and life safety
- Comfort and automation

BUILD YOUR OWN SECURITY AND COMFORT WITH AJAX

A SINGLE INTEGRATED ECOSYSTEM
Ajax is a unified ecosystem in which intrusion protection, video surveillance, fire safety, water leak prevention, and automation work seamlessly together. You can add new devices and scale your system as space requirements grow — without compatibility issues, complex setup, or redesigning everything from scratch.

INSTANT ALERTS WITH VISUAL PROOF
You don't miss important events — you know exactly when and how to respond. When an intrusion, fire, or water leak is detected, the app sends a critical alert that breaks through Do Not Disturb mode. Visual alarm verification from Ajax cameras or MotionCam detectors helps you quickly understand what's happening on site.

VIDEO SURVEILLANCE YOU CAN TRUST
Watch live video or browse the archive directly in the app. Footage is synchronized with system events, giving you a clear visual context for every alarm and complete situational awareness. To protect your privacy, video streams use secure proprietary transmission technology, while passwordless camera authentication minimizes the risk of unauthorized access.

AUTOMATION FOR ENHANCED SECURITY AND ROUTINES
Set your system to operate automatically. Change security modes on a schedule, turn on lighting when motion is detected, shut off water in case of a leak, or control locks, gates, heating, and appliances. Automation scenarios run in the background — even without an internet connection — while you focus on your day.

PROFESSIONAL RESPONSE, ONE TAP AWAY
Connect your system to a monitoring company to access professional security services with fast alarm response. The largest alarm receiving centers and a wide range of CMS software in more than 180 countries support Ajax systems. In an emergency, press the in-app panic button to instantly transmit the event and your smartphone's location to the rapid response unit.

• • •

Ajax equipment is required to use the app.
Devices are available from authorized Ajax Systems partners.

Learn more at ajax.systems

User Reviews

Lorenzo Rizzotti Jul 14, 2025
★★★☆☆

Nearly perfect! My main suggestion is regarding the 'Arm' shortcut created from the home screen (via long-pressing the app icon and dragging 'Arm'). If the alarm fails to arm due to open sensors, the app currently doesn't provide a notification. It would be a significant improvement if, in such cases, the app automatically opened to display the open sensors, similar to its behavior when arming from within the app itself

Nicholas May 9, 2026
★☆☆☆☆

Unfortunately, security notifications in the app are useless as they 10 or more minutes delayed. The IOS app gets notifications instantly, Android does not. The app on android has no data saving, battery saving or background service limitations and has been tested on Samsung and OnePlus phones with the same result.

B N May 22, 2026
★★★★☆

Excellent app overall. One small but important modification I would highly recommend the developers is to separate the panic button location away from the other commands on the main UI. Albeit the countdown, this would highly reduce the number of accidental pressing.

Robyn Ricket May 25, 2026
★★★★☆

easy to use. Now we have 2 properties on the app i would love to be able to change the display colour so that it is easy to differentiate between each one when you go to change status. eg arm or disarm.

How to Download Ajax Security System APK

  1. Enter the package name com.ajaxsystems on the APK Downloader.
  2. Select your device architecture (ARM64 recommended for modern devices).
  3. Click Download to get the merged APK file.
  4. Transfer and install the APK on your Android device.
  5. Keep Updated: Visit APKDER.COM regularly to search for and download the latest secure versions of your favorite apps.

Security & Signature Verification

This APK download is 100% safe. We verify that the cryptographic signature of the file matches the official developer credentials. No modifications or adware are injected.

Contacts Special Access
  • read your contacts
Location Special Access
  • approximate location (network-based)
  • precise location (GPS and network-based)
Photos/Media/Files Basic Access
  • read the contents of your USB storage
  • modify or delete the contents of your USB storage
Storage Basic Access
  • read the contents of your USB storage
  • modify or delete the contents of your USB storage
Camera Special Access
  • take pictures and videos
Microphone Special Access
  • record audio
Wi-Fi connection information Basic Access
  • view Wi-Fi connections
Other Basic Access
  • view network connections
  • pair with Bluetooth devices
  • access Bluetooth settings
  • change network connectivity
  • connect and disconnect from Wi-Fi
  • control flashlight
  • full network access
  • change your audio settings
  • run at startup
  • reorder running apps
  • control vibration
  • prevent device from sleeping
  • read Google service configuration
  • receive data from Internet

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