# Fast vs Astraea

The clearest difference is ads: Astraea at none against Fast's shown. Astraea also leads on update cadence (fortnightly vs every 5 months). Fast's advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Fast sells 3 in-app purchases, starting at $4.99 per 7 days and Astraea sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Fast ships an update every 5 months, Astraea fortnightly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Fast | Astraea |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 24 MB | 73 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Atech Consultancy Ltd](https://appshunter.io/developer/1818884485) | [Jose Carlos Villarreal](https://appshunter.io/developer/1845626085) |

## What reviewers say

### Fast

[App page](https://appshunter.io/ios/app/fast-learn-fula-language/id6738495106)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $4.99 | per 7 days |
| Yearly Access | $29.99 | per year |
| Lifetime Access | $39.99 | one-time |


### Astraea

[App page](https://appshunter.io/ios/app/astraea-learn-astronomy/id6790015981)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Astraea Premium Monthly | $3.99 | per month |
| Astraea Premium Annual | $39.99 | per year |


## Frequently asked questions

### Is Fast free?

Fast is free to download, with in-app purchases available.

### Is Astraea free?

Astraea is free to download, with in-app purchases available.

### Do Fast or Astraea have ads?

Fast shows ads; Astraea does not.

### Which is updated more often, Fast or Astraea?

Fast ships an update every 5 months, and Astraea fortnightly. Most recently, Fast was updated on November 8, 2026 and Astraea 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.*