# ASF vs Alerta

The clearest difference is ads: ASF at none against Alerta's shown. ASF also leads on iOS requirement (9.3 vs 18.6). Alerta's advantage is update cadence (every 4 days vs monthly). On price, 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.

ASF ships an update monthly, Alerta every 4 days. The most recent releases landed on September 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ASF | Alerta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | — | Free |
| Size | 129 MB | 16 MB |
| Requires iOS | **9.3** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Autoridade de Supervisão de Seguros e Fundos de Pensões](https://appshunter.io/developer/1439465314) | [Walter Tengler](https://appshunter.io/developer/1860699717) |

## What reviewers say

### ASF

[App page](https://appshunter.io/ios/app/asf/id1151813798)

**Features:** macOS Compatibility

**In-app purchases:** none


### Alerta

[App page](https://appshunter.io/ios/app/alerta/id6759662896)

Stay informed about active incidents across Portugal with real-time map updates and notifications. Report new events, track emergency response efforts, and filter information by type. Users can build a reputation for reliable reporting.

**Highlights:** Real-time incident map, Report new incidents, Receive location-based alerts, View deployed resources, Filter incidents by type, User reporting reputation system

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ASF free?

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

### Is Alerta free?

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

### Do ASF or Alerta have ads?

Alerta shows ads; ASF does not.

### Which is updated more often, ASF or Alerta?

ASF ships an update monthly, and Alerta every 4 days. Most recently, ASF was updated on September 24, 2026 and Alerta on October 11, 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.*