# ClaviSay vs Penguin

The clearest difference is in-app purchases: ClaviSay at none against Penguin's 1. ClaviSay also leads on iOS requirement (13.0 vs 15.0). Penguin's advantage is update cadence (every 3 days vs weekly). On price, ads and device support there is nothing between them.

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

ClaviSay ships an update weekly, Penguin every 3 days. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ClaviSay | Penguin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clavisay-language-practice/id6776266342/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free | — |
| Size | 49 MB | 33 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [松 颜](https://appshunter.io/developer/6775418183) | [AYKUT ARSLANTAS](https://appshunter.io/developer/1776624321) |

## What reviewers say

### ClaviSay

[App page](https://appshunter.io/ios/app/clavisay-language-practice/id6776266342)

Improve your English by reading real-world content and practicing with a personalized AI agent. Save new words and phrases, then engage in focused AI-powered exercises based on your learning history. Receive AI feedback to enhance your own English expressions.

**Highlights:** Read English articles with AI assistance, Save vocabulary and expressions, Personalized AI practice sessions, AI feedback on English expressions, Review mistakes and learning items, Build a personal learning memory

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ClaviSay free?

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

### Is Penguin free?

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

### Do ClaviSay or Penguin have ads?

Neither ClaviSay nor Penguin shows ads.

### Which is updated more often, ClaviSay or Penguin?

ClaviSay ships an update weekly, and Penguin every 3 days. Most recently, ClaviSay was updated on September 17, 2026 and Penguin on September 20, 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.*