# Fast vs Study Penguin

The clearest difference is in-app purchases: Study Penguin at none against Fast's 3. Study Penguin also leads on ads (none vs shown) and update cadence (daily vs every 5 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Fast sells 3 in-app purchases, starting at $4.99 per 7 days. Study Penguin asks for nothing beyond the download.

Fast ships an update every 5 months, Study Penguin daily. The most recent releases landed on September 13, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Fast | Study Penguin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Daily** |
| Size | 24 MB | 38 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Atech Consultancy Ltd](https://appshunter.io/developer/1818884485) | [Rei Minamida](https://appshunter.io/developer/6779070914) |

## What reviewers say

### Fast

[App page](https://appshunter.io/ios/app/fast-speak-kirundi-language/id6737974987)

**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 |


### Study Penguin

[App page](https://appshunter.io/ios/app/study-penguin/id6779070912)

**In-app purchases:** none


## Frequently asked questions

### Is Fast free?

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

### Is Study Penguin free?

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

### Do Fast or Study Penguin have ads?

Fast shows ads; Study Penguin does not.

### Which is updated more often, Fast or Study Penguin?

Fast ships an update every 5 months, and Study Penguin daily. Most recently, Fast was updated on September 13, 2026 and Study Penguin on October 28, 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.*