# SelvaApp vs Amazontech

The clearest difference is update cadence: Amazontech at weekly against SelvaApp's every 11 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.

SelvaApp ships an update every 11 months, Amazontech weekly. The most recent releases landed on September 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | SelvaApp | Amazontech |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | Free | — |
| Size | 40 MB | 62 MB |
| Requires iOS | 15.1 | **14.0.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Rodrigo Augusto Ferreira de Souza](https://appshunter.io/developer/1718475996) | [Koddex Solucoes Digitais Ltda Me](https://appshunter.io/developer/966761844) |

## What reviewers say

### SelvaApp

[App page](https://appshunter.io/ios/app/selvaapp/id6473133697)

Access real-time and historical environmental data for air quality, wildfires, and storms across the Amazon, Brazil, and South America. Receive custom alerts based on your monitored sensors and areas. Plan outdoor activities with 7-day forecasts and health recommendations.

**Highlights:** Real-time air quality data, Wildfire and storm occurrence, 7-day weather forecasts, Customizable alerts, Health recommendations, Historical data visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### Amazontech

[App page](https://appshunter.io/ios/app/amazontech/id6747779761)

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

**In-app purchases:** none


## Frequently asked questions

### Is SelvaApp free?

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

### Is Amazontech free?

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

### Do SelvaApp or Amazontech have ads?

Neither SelvaApp nor Amazontech shows ads.

### Which is updated more often, SelvaApp or Amazontech?

SelvaApp ships an update every 11 months, and Amazontech weekly. Most recently, SelvaApp was updated on September 15, 2026 and Amazontech on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*