# Penguin vs Knowledge Path

The clearest difference is in-app purchases: Knowledge Path at none against Penguin's 1. Penguin's advantage is ads (none vs shown) and update cadence (every 3 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Penguin sells 1 in-app purchase, starting at $5.99 per month. Knowledge Path asks for nothing beyond the download.

Penguin ships an update every 3 days, Knowledge Path monthly. The most recent releases landed on September 20, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | Penguin | Knowledge Path |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Monthly |
| Size | 33 MB | 21 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AYKUT ARSLANTAS](https://appshunter.io/developer/1776624321) | [SY KHANH HO](https://appshunter.io/developer/1851698856) |

## What reviewers say

### Penguin

[App page](https://appshunter.io/ios/app/penguin-learn-languages/id6776519291)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Penguin Premium Monthly | $5.99 | per month |


### Knowledge Path

[App page](https://appshunter.io/ios/app/knowledge-path/id6790034506)

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

**In-app purchases:** none


## Frequently asked questions

### Is Penguin free?

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

### Is Knowledge Path free?

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

### Do Penguin or Knowledge Path have ads?

Knowledge Path shows ads; Penguin does not.

### Which is updated more often, Penguin or Knowledge Path?

Penguin ships an update every 3 days, and Knowledge Path monthly. Most recently, Penguin was updated on September 20, 2026 and Knowledge Path on August 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.*