SchoolGuard vs InstaSub
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SchoolGuard
This app provides K-12 school staff with an immediate panic button for emergencies. Upon activation, it alerts law enforcement, school personnel, and nearby protected schools, while displaying the alert's location.
- One-tap panic button for emergencies
- Alerts law enforcement and school staff
- Sends location data
- Notifies nearby schools
- Listed in AT&T FirstNet App Catalog
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SchoolGuard is a mobile panic button app for K-12 school staff. In the event of an active school shooting emergency, a teacher or school staff member presses the main SchoolGuard panic button. As the app is dialing 911, an alert is immediately sent to the smartphones of all federal, state and local, ON and OFF duty, law enforcement officers who are in close proximity to the school and who belong to the Hero911 Network. Additionally, an intra-school alert is simultaneously sent to the smartphones of all school staff and a mapped location of the initial alert is displayed (mapping depends on cell coverage). SchoolGuard also alerts all other protected schools within a 5 mile radius of the initial alert. SchoolGuard is also listed in the AT&T FirsNet App Catalog as an emergency app for first responders. Please be aware that continued use of GPS running in the background can dramatically decrease battery life.
InstaSub
This app streamlines job management for educators and administrators. It allows substitutes to easily accept or decline jobs, while teachers can post and manage absences. Administrators benefit from efficient scheduling and reporting tools.
- Accept/Decline jobs
- View job history
- Post and manage absences
- Schedule substitute requests
- Approve/Deny time-off
- Absence reporting
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The InstaSub mobile app provides a quick and easy way to view and accept jobs, post absences, request subs and manage absences. Features include: Substitutes can: Accept/Decline jobs with a click View Available Jobs, Scheduled Jobs and Past Jobs View and update Notification Settings for email, text and push alerts Teachers can: Post Absences View Scheduled, Past and Denied Absences Post Internal Coverage Absences Cancel Absences Admins can: Scheduling Sub Requests Approve/Deny time-off requests View Filled Jobs and Unfilled Jobs Daily/Monthly Absence Reports An InstaSub account with Substitute, Teacher, or Admin permission is required to use this app. About InstaSub In addition to our time tracking and employee scheduling solutions, InstaSub gives users the ability to offer a highly efficient way to manage absences for teachers. InstaSub continues to provide K-12 administrators with the functionality they need to ensure optimal staffing, centralized reporting, and automated notifications to streamline communication.
Screenshots
Verdict
The clearest difference is review sentiment: SchoolGuard at 71% against InstaSub's 0%. SchoolGuard also leads on rating (5.0 vs 4.4). InstaSub's advantage is ratings volume (241 vs 4) and update cadence (every 6 weeks vs every 6 months). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SchoolGuard holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: InstaSub has 241 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 71% of SchoolGuard's written reviews are positive against 0% of InstaSub's.
SchoolGuard ships an update every 6 months, InstaSub every 6 weeks. The most recent releases landed on September 23, 2026 and October 12, 2026 respectively.
| Parameter | SchoolGuard | InstaSub |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.4 (241 ratings) |
| Positive reviews | 71.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 4 | 241 — better |
| Update frequency | Every 6 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 58 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Guard911, LLC | Humanity.com, LLC |
Customer experience
SchoolGuard
InstaSub
In-app purchases
SchoolGuard
No in-app purchases
InstaSub
No in-app purchases
Questions
Is SchoolGuard free?
Is InstaSub free?
Which has better reviews, SchoolGuard or InstaSub?
Do SchoolGuard or InstaSub have ads?
Which is updated more often, SchoolGuard or InstaSub?
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