# SchoolGuard vs InstaSub

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.

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 16, 2026 respectively.

## The numbers

| Metric | SchoolGuard | InstaSub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/schoolguard/id768010909/reviews)** | [4.4 (241 ratings)](https://appshunter.io/ios/app/instasub/id1501485445/reviews) |
| Number of ratings | 4 | **241** |
| Positive reviews | **71.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 58 MB | 24 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guard911, LLC](https://appshunter.io/developer/862725594) | [Humanity.com, LLC](https://appshunter.io/developer/864258525) |

## What reviewers say

### SchoolGuard

[App page](https://appshunter.io/ios/app/schoolguard/id768010909)

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.

**Highlights:** 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

**In-app purchases:** none


### InstaSub

[App page](https://appshunter.io/ios/app/instasub/id1501485445)

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.

**Highlights:** Accept/Decline jobs, View job history, Post and manage absences, Schedule substitute requests, Approve/Deny time-off, Absence reporting

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SchoolGuard free?

SchoolGuard is free to download, with no in-app purchases.

### Is InstaSub free?

InstaSub is free to download, with no in-app purchases.

### Which has better reviews, SchoolGuard or InstaSub?

SchoolGuard is rated higher. SchoolGuard averages 5.0 out of 5 from 4 ratings, while InstaSub averages 4.4 from 241 ratings.

### Do SchoolGuard or InstaSub have ads?

Neither SchoolGuard nor InstaSub shows ads.

### Which is updated more often, SchoolGuard or InstaSub?

SchoolGuard ships an update every 6 months, and InstaSub every 6 weeks. Most recently, SchoolGuard was updated on September 23, 2026 and InstaSub on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*