# ALERTABLU vs Alaga

The clearest difference is ads: ALERTABLU at none against Alaga's shown. ALERTABLU also leads on update cadence (fortnightly vs every 2 months). Alaga's advantage is iOS requirement (13.0 vs 15.0). 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.

ALERTABLU ships an update fortnightly, Alaga every 2 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ALERTABLU | Alaga |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 17.1% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 69 MB | 32 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Prefeitura Municipal de Blumenau](https://appshunter.io/developer/1066281687) | [Mairton Leal](https://appshunter.io/developer/1760252879) |

## What reviewers say

### ALERTABLU

[App page](https://appshunter.io/ios/app/alertablu/id1066281688)

Monitor critical events in Blumenau with real-time river levels and weather forecasts. Receive personalized alerts for your registered locations and access emergency information, including escape routes during floods.

**Highlights:** Real-time river level monitoring, Flood prediction alerts, Personalized location monitoring, Detailed weather and flood data, Incident reporting to Civil Defense, Flood escape route planning

**Features:** macOS Compatibility

**In-app purchases:** none


### Alaga

[App page](https://appshunter.io/ios/app/alaga-info/id6593661838)

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

**In-app purchases:** none


## Frequently asked questions

### Is ALERTABLU free?

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

### Is Alaga free?

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

### Do ALERTABLU or Alaga have ads?

Alaga shows ads; ALERTABLU does not.

### Which is updated more often, ALERTABLU or Alaga?

ALERTABLU ships an update fortnightly, and Alaga every 2 months. Most recently, ALERTABLU was updated on October 29, 2026 and Alaga on October 27, 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.*