Comparison

Kokka Number Study vs Skylang

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

Head to head
About

Kokka Number Study

Features
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Learn Korean numbers with the Number Cards app! [ Key Features ] • Category-based Number Learning - Two categories: Native Korean numerals (hana, dul, set...) and Sino-Korean numerals (il, i, sam...) - Select your preferred category for focused learning • Visual Learning - Intuitively understand numbers through images - Tap images to hear number pronunciations and learn how to say them • Drawing Feature - Draw directly on number cards to spark creativity - Express freely with various colors • Quick Number Search - Jump to any number instantly using the number tile modal - Reinforce learning through repetition [ Learning Benefits ] • Multi-sensory learning using both visual and auditory senses • Natural acquisition of Korean numbers • Learn to distinguish between Native Korean and Sino-Korean numerals • Develop focus and creativity [ Safe Learning Environment ] • We do not collect personal information • Only safe content is provided • Only harmless banner ads are displayed [ How to Use ] 1. When you launch the app, a category selection screen appears 2. Select your preferred category (Native Korean numerals or Sino-Korean numerals) 3. Swipe left or right using arrow buttons to navigate through number cards 4. Tap images to hear number pronunciations 5. Tap the menu icon to jump directly to any number using the number tiles 6. Tap the pencil icon to switch to drawing mode This app helps you learn Korean numbers in a fun and natural way.

About

Skylang

Master Korean language and culture through engaging story-based lessons, interactive roleplays, and authentic video clips. Build fluency and confidence with a curriculum developed by an experienced educator, suitable for all learning levels.

Highlights
  • Story-based lessons
  • Interactive roleplays
  • Vocabulary building activities
  • Authentic video clips
  • AI-powered language tools
  • Flashcard system
Read full description

Skylang is a Korean language app built around one simple idea: the best way to learn to speak Korean is to actually speak it — from day one. At the heart of Skylang is Sky, your AI Korean conversation partner. Sky brings real-life daily situations to life through roleplays designed to get you speaking naturally and confidently. Each roleplay is followed by a playback checker so you can hear yourself, reflect, and improve. Whether you're ordering at a café, making plans with a friend, or navigating everyday Korean life, Sky meets you in the moment and stays in the conversation with you. Skylang also features a full curriculum that takes learners from complete beginner to advanced — step by step, with nothing left to chance. The Skylang Korean curriculum was based on a rigorously designed, 3 year college-level Korean language course spanning levels A1 (true beginner) to C2 (advanced), reimagined for an app, in bite-sized lessons. Every lesson, every script, and every grammar explanation is hand-crafted by Teacher Kay, a Korean language educator with over 20 years of university teaching and curriculum development experience. The AI powers the speaking interaction, but all of the content in the curriculum and established role-plays have been vetted by a teacher who has genuine respect for learners and learning. Whether you're just starting as a complete beginner, intermediate, or advanced learner, we are confident Skylang will provide you with the instruction, guidance, and pathways you need to make the meaningful progress you've been looking for. You can try everything free for a week to see if Skylang is for you. We are committed to providing only thoughtful and pedagogically sound content to our users and learners. If you have feature requests, suggestions, or comments, we truly love to hear from you. Terms of Conditions: https://skylang.app/terms Privacy Policy: https://skylang.app/privacy

Screenshots

Kokka Number Study4 screens
Skylang4 screens

Verdict

The call

The clearest difference is in-app purchases: Kokka Number Study at none against Skylang's 2. Kokka Number Study also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (15.1 vs 18.0). 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. Skylang sells 2 in-app purchases, starting at $19.99 per month. Kokka Number Study asks for nothing beyond the download.

UpkeepUpdate frequency

Kokka Number Study ships an update every 2 days, Skylang every 5 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Kokka Number Study versus Skylang: the parameters behind the verdict, then further details
ParameterKokka Number StudySkylang
PriceFreeFree
Rating—5.0 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 2 days — betterEvery 5 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better18.0
Further details — not scored
Size34 MB63 MB
Age rating4+4+
Developerjaewook shinSkylang, Inc

In-app purchases

None

Kokka Number Study

No in-app purchases

2 purchases

Skylang

Subscriptions2
  • Skylang Premium (Monthly)$19.991 Month
  • Skylang Premium (Annual)7 Days trial$129.991 Year

Questions

Is Kokka Number Study free?
Kokka Number Study is free to download, with no in-app purchases.
Is Skylang free?
Skylang is free to download, with in-app purchases available.
Do Kokka Number Study or Skylang have ads?
Neither Kokka Number Study nor Skylang shows ads.
Which is updated more often, Kokka Number Study or Skylang?
Kokka Number Study ships an update every 2 days, and Skylang every 5 days. Most recently, Kokka Number Study was updated on November 9, 2026 and Skylang on October 31, 2026.

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