# Sou Astro vs Filosofia do Zero

The clearest difference is ads: Sou Astro at none against Filosofia do Zero's shown. Sou Astro also leads on iOS requirement (13.0 vs 15.1). On price, update cadence, 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.

Sou Astro ships an update every 5 weeks, Filosofia do Zero every 3 weeks. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Sou Astro | Filosofia do Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/filosofia-do-zero/id6743000488/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Ad-supported |
| Size | 17 MB | 62 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 9+ |
| Developer | [Cativa Tecnologia e Servicos Digitais](https://appshunter.io/developer/1498249979) | [Guilherme Freire](https://appshunter.io/developer/1800720923) |

## What reviewers say

### Sou Astro

[App page](https://appshunter.io/ios/app/sou-astro/id6469834311)

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

**In-app purchases:** none


### Filosofia do Zero

[App page](https://appshunter.io/ios/app/filosofia-do-zero/id6743000488)

Access historical wisdom and learn philosophy from basic to advanced. Apply this knowledge to all areas of your life with lessons, ebooks, and a study path. Engage with an active community and download content for offline viewing.

**Highlights:** Philosophy, History, Politics, and Literature lessons, Ebooks, extra material, and PDF summaries, Active student community, Pedagogical study path, Offline content download

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

**In-app purchases:** none


## Frequently asked questions

### Is Sou Astro free?

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

### Is Filosofia do Zero free?

Filosofia do Zero is free to download, with no in-app purchases.

### Do Sou Astro or Filosofia do Zero have ads?

Filosofia do Zero shows ads; Sou Astro does not.

### Which is updated more often, Sou Astro or Filosofia do Zero?

Sou Astro ships an update every 5 weeks, and Filosofia do Zero every 3 weeks. Most recently, Sou Astro was updated on September 30, 2026 and Filosofia do Zero on October 12, 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.*