# 911inform Mobile vs FDMapBook

The clearest difference is update cadence: FDMapBook at every 4 days against 911inform Mobile's every 2 months. 911inform Mobile's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

911inform Mobile ships an update every 2 months, FDMapBook every 4 days. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 911inform Mobile | FDMapBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/911inform-mobile/id6470300581/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 68 MB | 12 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [911inform, LLC](https://appshunter.io/developer/1472795388) | [Circuit Dojo LLC](https://appshunter.io/developer/1484737953) |

## What reviewers say

### 911inform Mobile

[App page](https://appshunter.io/ios/app/911inform-mobile/id6470300581)

This app provides real-time emergency notifications and communication for school subscribers. It features panic buttons, reunification tools, and student tracking to enhance safety and streamline emergency responses.

**Highlights:** Active emergency notifications, Panic buttons for various emergencies, Student reunification tools, Real-time student attendance tracking, Missing student tracking, Interactive school floor plans

**Features:** macOS Compatibility

**In-app purchases:** none


### FDMapBook

[App page](https://appshunter.io/ios/app/fdmapbook/id6759537925)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 911inform Mobile free?

911inform Mobile is free to download, with no in-app purchases.

### Is FDMapBook free?

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

### Do 911inform Mobile or FDMapBook have ads?

Neither 911inform Mobile nor FDMapBook shows ads.

### Which is updated more often, 911inform Mobile or FDMapBook?

911inform Mobile ships an update every 2 months, and FDMapBook every 4 days. Most recently, 911inform Mobile was updated on October 8, 2026 and FDMapBook 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.*