# Alfredo Backer vs Active Defender

The clearest difference is update cadence: Active Defender at every 5 weeks against Alfredo Backer's every 8 months. 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.

Alfredo Backer ships an update every 8 months, Active Defender every 5 weeks. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Alfredo Backer | Active Defender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (54 ratings)](https://appshunter.io/ios/app/active-defender/id1436872758/reviews)** |
| Number of ratings | — | **54** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 55 MB | 214 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Externato Alfredo Backer Ltda](https://appshunter.io/developer/1535072495) | [MMOJ](https://appshunter.io/developer/394675746) |

## What reviewers say

### Alfredo Backer

[App page](https://appshunter.io/ios/app/alfredo-backer/id1212354980)

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

**In-app purchases:** none


### Active Defender

[App page](https://appshunter.io/ios/app/active-defender/id1436872758)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Alfredo Backer free?

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

### Is Active Defender free?

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

### Do Alfredo Backer or Active Defender have ads?

Neither Alfredo Backer nor Active Defender shows ads.

### Which is updated more often, Alfredo Backer or Active Defender?

Alfredo Backer ships an update every 8 months, and Active Defender every 5 weeks. Most recently, Alfredo Backer was updated on September 18, 2026 and Active Defender on September 23, 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.*