Comparison

ClaviSay vs Penguin

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ClaviSay

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
Read full description

Learn English from real content. Save words, phrases, and sentences from what you read. Turn them into personalized AI Practice with your own learning agent. ClaviSay helps you improve English through real-world reading, vocabulary review, and short AI-powered practice sessions. Instead of studying from generic lessons, you can practice with the English content you actually read. Import or read articles, save useful expressions, and let your AI agent create focused exercises from your learning history. Key features: - Read English articles with AI assistance - Understand words, phrases, and sentences in context - Save vocabulary, expressions, and useful sentences - Practice vocabulary recall and phrase usage - Improve your own English expressions with AI feedback - Review mistakes and save learning items - Build a personal learning memory with your AI agent ClaviSay is designed for learners who want to improve English through real reading, daily practice, and practical expression. AI-generated explanations and feedback are provided for language learning support and may not always be perfect.

About

Penguin

Features
Read full description

Penguin is an innovative language and vocabulary learning app that makes mastering new languages fun and effective through interactive games. Key Features: • Personalized Lessons & Words: Custom lessons and vocabulary sets tailored to your personal goals and learning pace. • Learning Through Games: Memorize words effortlessly by playing engaging games designed for active learning. • Audio Voiceovers & Pronunciation: Improve your speaking and listening skills with clear and accurate audio pronunciations for all words. • Scores & Progress Tracking: Aim for high scores in games and track your accomplishments in real-time. • Email Notifications: Stay motivated with daily study reminders and weekly progress reports sent straight to your inbox. Explore the world of words and learn new languages easily with Penguin! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ClaviSay4 screens
Penguin4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
ClaviSay versus Penguin: the parameters behind the verdict, then further details
ParameterClaviSayPenguin
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size49 MB33 MB
Age rating4+4+
Developer松 颜AYKUT ARSLANTAS

In-app purchases

None

ClaviSay

No in-app purchases

1 purchases

Penguin

Subscriptions1
  • Penguin Premium Monthly3 Days trial$5.991 Month

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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