# AviBird vs Alerta Madeira

AviBird and Alerta Madeira are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

AviBird ships an update every 2 weeks, Alerta Madeira weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AviBird | Alerta Madeira |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 39 MB | 30 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bruno Filipe Marques Vale](https://appshunter.io/developer/1861008621) | [MAIS IMPACTO, UNIPESSOAL, LDA](https://appshunter.io/developer/1885861117) |

## What reviewers say

### AviBird

[App page](https://appshunter.io/ios/app/avibird/id6756505153)

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

**In-app purchases:** none


### Alerta Madeira

[App page](https://appshunter.io/ios/app/alerta-madeira/id6760715131)

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

**In-app purchases:** none


## Frequently asked questions

### Is AviBird free?

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

### Is Alerta Madeira free?

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

### Do AviBird or Alerta Madeira have ads?

Neither AviBird nor Alerta Madeira shows ads.

### Which is updated more often, AviBird or Alerta Madeira?

AviBird ships an update every 2 weeks, and Alerta Madeira weekly. Most recently, AviBird was updated on November 5, 2026 and Alerta Madeira on October 31, 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.*