Comparison

Active Defender vs MyUmsi

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

Head to head
About

Active Defender

This app provides real-time emergency maps to reduce chaos and confusion during critical incidents. It offers instant visual guidance for students, staff, and first responders, ensuring everyone knows what to do and where to go. It facilitates communication and provides crucial information for swift and effective emergency response.

Highlights
  • Real-time emergency map
  • Instant multistory mapping
  • Emergency alerts
  • Real-time chat communication
  • Crisis location and nature
  • Campus-wide information sharing
Features
Read full description

Imagine there is an emergency at a school or a business. During emergencies, there can be a lot of chaos and confusion. Active Defender provides a real-time emergency map that removes the confusion. Everyone can know where to go and what to do regardless of the emergency. IMPORTANT! To use this app in your school or business, make sure they have a cooperate Active Defender account. You will get a login from your school or school district to fully login, connect, and participate with this app. Active Defender can INSTANTLY provide a multistory emergency map: To First Responders To Students To Staff To Vistors Everyone can know what to do and where to go! Active Defender’s purpose is to provide clarity and remove chaos while making sure everyone knows what the problem is and where the problem is relative to where they are located. WHY? Because you only make good decisions based on what you know and where you are. Focus on “safety and security is everyone’s responsibility.” Whether there is a fight, fire, active shooter, medical emergency, or extreme weather event, Active-Defender gives real-time, life-saving information to everyone that needs to know. Active-Defender allows you to: - Warn other staff members, school resource officers, and first responders with the touch of a button that an emergency is taking place. - Receive map alerts as to the exact nature and location of the crisis. - Use the chat window to engage in real-time communication with responders. - Provide details to others on your campus while simultaneously giving first responders the information they need to respond with speed and precision. Active-Defender: Saves Time - Provides Clarity - Saves Lives!

About

MyUmsi

Features
Read full description

MyUmsi is the official mobile app for members of the National Association of University-Model Schools (NAUMS) — a community of educational institutions that blend the best of classroom and home learning. Connect with your school community wherever you are: • HOME — At-a-glance view of upcoming events, recent announcements, and your school's status. • SCHOOLS — Browse every member school on an interactive map, view their accreditations and details, and find Heads of School and key contacts. • ANNOUNCEMENTS — Stay current with policy updates, news, education resources, and event announcements from NAUMS leadership. Filter by topic and favorite the ones that matter most to you. • EVENTS — RSVP to annual summits, regional meetings, webinars, and training sessions. • DOCUMENTS — Access the NAUMS document library — policies, templates, training materials, and forms — whenever you need them. • NOTIFICATIONS — Fine-grained control over what you're notified about. Toggle categories (Announcements, Invoices, Events) and set quiet hours for your time zone. Designed for Heads of School, administrators, teachers, and staff at NAUMS member schools. Sign in is required — accounts are issued by your school administrator or the NAUMS office. For account help, contact support@naums.org.

Screenshots

Active Defender4 screens
MyUmsi4 screens

Verdict

The call

Active Defender and MyUmsi are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 23, 2026 and September 6, 2026 respectively.

ScorecardNo meaningful differences
Active Defender versus MyUmsi: the parameters behind the verdict, then further details
ParameterActive DefenderMyUmsi
PriceFreeFree
Rating4.9 (54 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings54 — better—
Update frequencyEvery 5 weeksEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size214 MB52 MB
Age rating4+4+
DeveloperMMOJRADIUS OPERATIONS GROUP LLC

In-app purchases

None

Active Defender

No in-app purchases

None

MyUmsi

No in-app purchases

Questions

Is Active Defender free?
Active Defender is free to download, with no in-app purchases.
Is MyUmsi free?
MyUmsi is free to download, with no in-app purchases.
Do Active Defender or MyUmsi have ads?
Neither Active Defender nor MyUmsi shows ads.
Which is updated more often, Active Defender or MyUmsi?
Active Defender ships an update every 5 weeks, and MyUmsi every 5 weeks. Most recently, Active Defender was updated on September 23, 2026 and MyUmsi on September 6, 2026.

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