Comparison

DoorBird vs Ajax Security System

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

Head to head
About

DoorBird

See, hear, and speak to visitors at your door from anywhere in the world. Receive instant notifications for doorbell presses and motion detection, ensuring you never miss a visitor or delivery. Securely unlock doors, garages, or gates remotely.

Highlights
  • Live HDTV video with night vision
  • 2-way audio communication
  • Worldwide mobile access
  • Push notifications for visitors and motion
  • Remote door, garage, or gate unlocking
  • Visitor history
  • Geofencing
Features
Read full description

The DoorBird App provides mobile access to DoorBird IP Video Door Stations. Using the app, you can see and hear your visitors in real time, speak with them or unlock the door. When visitors press your doorbell, you receive a push notification on your iPhone or iPad and can immediately answer your door – from anywhere in the world. The DoorBird can also send instant alerts when a visitor triggers the built-in motion sensor. No matter if you are at home or not, you will never miss a visitor or a delivery. DoorBird's innovative IP technology was developed in Germany and is continuously improved through regular app and hardware updates. The system works in your local network (LAN) as well as outside of your home network environment without range limitation and securely encrypted over the Internet. DoorBird App Features for IP Video Door Stations: • Live HDTV video (ultra wide-angle camera lens, night vision) • 2-way audio communication • Worldwide mobile access to DoorBird IP Video Door Stations • Push notifications on your iPhone or iPad when the doorbell is pushed or the motion sensor is triggered • Configurable motion sensor • Free visitor history • Secure door, garage or gate opener via the app • Different ringtones for push notifications • Geofencing • App is optimized for portrait and landscape format • WiFi and Ethernet (PoE) • Smart Home and NVR compatible

About

Ajax Security System

Monitor your home or office security, receive instant alerts, and manage video surveillance and automation from a single interface. Arm/disarm your system, view visual alarm verification, and create custom automation scenarios for enhanced safety and convenience.

Highlights
  • Arm and disarm system remotely
  • Real-time event monitoring
  • Instant critical alerts
  • Visual alarm verification
  • Automation scenario creation
  • Mobile panic button
  • Manage multiple spaces
Features
Read full description

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. 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

Screenshots

DoorBird4 screens
Ajax Security System4 screens

Verdict

The call

The clearest difference is review sentiment: Ajax Security System at 73% against DoorBird's 37%. DoorBird's advantage is ratings volume (29K vs 270) and rating (4.5 vs 4.3). On price, update cadence, ads and in-app purchases 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

DoorBird holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: DoorBird has 29K ratings behind it against 270, so its average is the more settled of the two. Written reviews complicate that: 37% of DoorBird's written reviews are positive against 73% of Ajax Security System's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

DoorBird ships an update every 3 weeks, Ajax Security System fortnightly. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

Scorecard5 real differences · 5 level
DoorBird versus Ajax Security System: the parameters behind the verdict, then further details
ParameterDoorBirdAjax Security System
PriceFreeFree
Rating4.5 (29K ratings) — better4.3 (270 ratings)
Positive reviews37.1% of reviews73.0% of reviews — better
Number of ratings29K — better270
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS12.0 — better18.0
Further details — not scored
Size88 MB727 MB
Age rating4+4+
DeveloperBird Home Automation GmbHAjax Systems Inc

Customer experience

DoorBird

All ratings29,063 ratings
Positive85.8%
Neutral4.0%
Negative10.2%
Written reviews488 reviews
Positive37.1%
Neutral14.3%
Negative48.6%

Ajax Security System

All ratings270 ratings
Positive83.0%
Neutral4.1%
Negative13.0%
Written reviews670 reviews
Positive73.0%
Neutral12.2%
Negative14.8%

User reviews

DoorBird

From 29K App Store ratings

What we love

  • 👍 Great product and service
  • 🔒 Reliable security features
  • 🚀 Easy installation and setup

Room to improve

  • 🐛 Slow app response and connectivity issues
  • 🔇 Poor audio quality and speaker volume
  • 📽️ Low camera quality and limited field of view
  • 🕰️ Significant delays in notifications and video feed

Ajax Security System

From 270 App Store ratings

What we love

  • 🚀 Reliable system
  • 👍 Easy to use app
  • 🔒 Comprehensive security
  • 💡 Convenient remote control
  • 🚀 Stable and functional

Room to improve

  • 🐛 App freezes and crashes
  • 👎 Constant updates
  • 👎 Limited customization options
  • 👎 Compatibility issues with iPad
  • 👎 Buggy notifications

Bugs and requests

DoorBird

Reported bugs

3 issues
  • Frequent app crashes and freezes
  • Inconsistent connectivity and sync issues
  • Unreliable device pairing and setup process

Requested features

4 requests
  • Siri/Google Assistant integration for voice control
  • Improved push notification system with audible alerts
  • Local storage option for video recordings
  • Simplified app interface and settings

Ajax Security System

Reported bugs

5 issues
  • App freezing when accessing notifications
  • Geofencing not working as expected
  • Delayed response when arming/disarming
  • Accidental panic button triggers
  • Connectivity issues after WiFi changes

Requested features

5 requests
  • Ability to schedule night mode
  • More sound options for door chimes
  • Improved iPad app experience
  • Siri/HomeKit integration
  • Customizable alarm volume and notifications

In-app purchases

None

DoorBird

No in-app purchases

None

Ajax Security System

No in-app purchases

Questions

Is DoorBird free?
DoorBird is free to download, with no in-app purchases.
Is Ajax Security System free?
Ajax Security System is free to download, with no in-app purchases.
Which has better reviews, DoorBird or Ajax Security System?
DoorBird is rated higher. DoorBird averages 4.5 out of 5 from 29K ratings, while Ajax Security System averages 4.3 from 270 ratings.
Do DoorBird or Ajax Security System have ads?
Neither DoorBird nor Ajax Security System shows ads.
Which is updated more often, DoorBird or Ajax Security System?
DoorBird ships an update every 3 weeks, and Ajax Security System fortnightly. Most recently, DoorBird was updated on September 30, 2026 and Ajax Security System on September 29, 2026.

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