K vs Blitz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
K
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A Customized Vocabulary App for Beginner Korean Learners This app is designed specifically for beginner learners of Korean. It features 1,000 essential Korean words that every beginner should know, presented in a structured and systematic way. More than just memorization, the app helps you build practical Korean skills through listening, speaking, review, and self-assessment. It’s a comprehensive learning tool that improves your pronunciation and helps you build a sustainable Korean study habit by gradually reducing learning pressure. Who is this app for? Absolute beginners learning Korean for the first time Learners preparing for TOPIK I Those who want to practice pronunciation and speaking along with memorizing vocabulary Users who need repetition and automated review features ----------------- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://natural-square-6f8.notion.site/Privacy-Policy-d46e2540e9c4445c950b1d31e6fc4c90
Blitz
Memorize anything with a private, offline flashcard app. Utilize smart scheduling, import existing decks, and track your progress with detailed statistics. Learn languages, science, and more with a one-time purchase.
- Smart scheduling for spaced repetition
- 100% offline and private
- 70+ ready-made decks
- Import Anki decks (.apkg)
- Progress tracking and statistics
- Holiday mode for review backlog
- Text-to-speech in 60+ voices
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Blitz is the fast, private way to memorize anything — languages, geography, code, music theory, medicine, or your own material. One small payment, yours forever. No subscription, no ads, no account. SMART SCHEDULING Rate each card Again, Good, or Easy and Blitz schedules its return for the moment you'd otherwise forget it. Hard cards come back sooner, easy ones fade into the future. A few minutes a day beats hours of cramming. YOUR DATA STAYS YOURS Blitz is 100% offline. No account, no tracking — every deck, card, and review lives on your device, with optional iCloud sync to your own private iCloud. Export a full backup anytime. 70+ READY-MADE DECKS Spanish, French, German, Japanese, Russian, world capitals, medical terminology, anatomy, chemistry, HTTP codes, the periodic table, SAT vocabulary, music theory, and more — 4,000+ curated cards across languages, school, medicine, geography, and code. BRING YOUR ANKI DECKS Import .apkg files complete with audio, images, colors, and (optionally) your review progress. CSV, TSV, and JSON work too. MADE FOR REAL LIFE • A personal plan from day one — tell Blitz what you're learning and start with the right decks • Holiday mode pauses reviews and spreads the backlog over days when you return • Streaks, retention stats, charts and a consistency heatmap • Fill-in-the-blank (cloze) cards, photos on cards, text-to-speech in 60+ voices • Full iPad support with split view and a home-screen widget • Light & dark mode, 10 languages ONE PRICE. YOURS FOREVER. Pay once and everything is included — unlimited decks, unlimited cards, every future update. No subscription. Ever.
Screenshots
Verdict
The clearest difference is ads: Blitz at none against K's shown. K's advantage is iOS requirement (12.0 vs 17.0). On price, update cadence, in-app purchases 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
Both are free to download. K sells 2 in-app purchases, starting at $2.00 per month and Blitz sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
K ships an update every 5 days, Blitz every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | K | Blitz |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 58 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Pracsol Inc. | Brandon van Rijn |
In-app purchases
K
- ALL Access Monthly$2.001 Month
- ALL Access Quaterly$5.003 Months
Blitz
- Blitz Premium$4.99









