Comparison

Kak vs Lewo

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

Head to head
About

Kak

Features
Read full description

Kak is your ultimate verb-based guide to mastering Russian—verbs, grammar, vocabulary. Unlock the power of Russian language mastery with Kak, your ultimate verb-based guide. Dive into a world of over 5,000 fully conjugated Russian verbs, explore essential grammar and vocabulary lessons, and practice tasks. Key Features: - Comprehensive Verb Learning:  Kak offers a vast collection of fully conjugated Russian verbs. Learn how to use them and understand their grammatical cases. - Grammar & Vocabulary Lessons:  Enhance your language skills with detailed grammar and vocabulary lessons. Practice tasks ensure you grasp the concepts effectively. - Vocabulary Collections:  Access over 500 phrases organized into useful collections for everyday conversations. - Grammar Case Tables:   Navigate the complexities of Russian grammar cases effortlessly with our detailed tables. - Verb Search: Easily find verbs, their infinitive forms, conjugations, participles and learn their usage in sentences. - Audio Pronunciation: Listen to correct pronunciations for improved speaking skills. - AI-Powered Grammar Check (Beta): Benefit from advanced grammar checking to enhance your writing skills. Why Choose Kak: Kak is designed for learners at all levels, whether you're a beginner or looking to perfect your Russian skills. Our app is built on educational excellence and user-friendly design, making it your ideal language companion. Master the Russian language, verbs, grammar, and vocabulary effortlessly with Kak. Download today and embark on a rewarding journey to learn Russian!

About

Lewo

Learn languages through AI-powered interactive stories. This app adapts to your skill level, offering tailored vocabulary building and conversational practice with an AI assistant. Enjoy a seamless and personalized learning journey for all levels.

Highlights
  • AI-powered interactive stories
  • Adaptive learning paths
  • Contextual vocabulary building
  • Interactive AI conversation practice
  • User-friendly interface
  • Suitable for all skill levels
Features
Read full description

Discover a New Way to Learn Languages with AI-Powered Stories! Our app transforms language learning into a fun, interactive, and personalized experience. Dive into engaging stories tailored to your skill level and preferences, and let AI guide you to fluency like never before. Key Features: Customizable Stories: Choose from quick stories for instant practice or special stories that adapt to your learning needs by focusing on unfamiliar words. Interactive AI Chats: After reading a story, engage in dynamic conversations with our AI assistant to improve your speaking and comprehension skills. Tailored Vocabulary Building: Learn new words in context and strengthen your understanding through targeted practice. Seamless Learning Experience: Enjoy a user-friendly interface that makes language learning accessible and enjoyable for everyone. For All Levels: Whether you’re a beginner or looking to refine your skills, our app adapts to your level and helps you progress. Start your language learning journey today and experience the power of personalized, AI-driven education! This application is subject to Apple's standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Kak4 screens
Lewo4 screens

Verdict

The call

The clearest difference is in-app purchases: Kak at none against Lewo's 2. Kak also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, 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. Lewo sells 2 in-app purchases, starting at $5.99 per month. Kak asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 6 level
Kak versus Lewo: the parameters behind the verdict, then further details
ParameterKakLewo
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 3 daysEvery 3 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size86 MB25 MB
Age rating4+4+
DeveloperINVALCRE (PRIVATE) LIMITEDUMUT BAYGUT

In-app purchases

None

Kak

No in-app purchases

2 purchases

Lewo

Subscriptions2
  • Premium Monthly$5.991 Month
  • Premium Annually$59.991 Year

Questions

Is Kak free?
Kak is free to download, with no in-app purchases.
Is Lewo free?
Lewo is free to download, with in-app purchases available.
Do Kak or Lewo have ads?
Neither Kak nor Lewo shows ads.
Which is updated more often, Kak or Lewo?
Kak ships an update every 3 days, and Lewo every 3 days. Most recently, Kak was updated on November 7, 2026 and Lewo on November 8, 2026.

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