Bubblegum vs K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bubblegum
This app uses AI to create personalized Korean reading materials with inline translations and audio. It features an AI tutor for explanations and practice, and a unique review system that resurfaces saved vocabulary within new content. Track your progress with encouraging statistics.
- AI-generated personalized reading content
- Inline translations and grammar explanations
- Synchronized audio narration
- AI Korean tutor chatbot
- Regenerative vocabulary review
- Progress tracking and statistics
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Bubblegum makes learning languages feel clear and personal. Read lessons about what you love, tap any word for help without losing your place, hear natural audio, and see your saved words again right when you need them. Built by language learners for learners. Why learners choose Bubblegum: • Personal lessons: pick from thousands of ideas or write your own, and Poppy, your AI tutor, writes a reading at your level with natural audio in seconds. • Help on tap: see word meanings, grammar notes, and cultural context right inside the text. • Listen as you read: natural narration highlights each line in sync to train your ear. • Ask Poppy anything: get deeper explanations, extra practice, or answers about the language you are learning. • Keep words fresh: Regenerative Review™ brings the words you save back inside future lessons, so you never grind through endless flashcards. • Real momentum: friendly stats celebrate your study time and recent wins. No streaks, no guilt. Every language is taught in its own right: • English (American, British, Australian), Spanish (Spain, Latin America, Río de la Plata), French (France, Canada), and Portuguese (Brazil, Portugal). • Korean, with a course that teaches you to read Hangul. • Japanese, with hiragana, katakana, and kanji courses, plus furigana whenever you want it. • Chinese in Simplified or Traditional characters with Pinyin, and Cantonese with Jyutping and its six tones. • Vietnamese (Northern, Central, Southern) and Arabic (Modern Standard, Egyptian, Moroccan), in the variety you choose. • Indonesian, Malay, Filipino (Tagalog), Cebuano, and Thai, for warm everyday conversations. • Russian and Ukrainian, each with a course that teaches you to read Cyrillic. • German, Italian, Swedish, Danish, Norwegian, Dutch, Finnish, Bulgarian, and Macedonian, with grammar explained inside real sentences. • Turkish and Azerbaijani, with vowel harmony and word endings explained as you read. • Polish, Czech, Slovak, Slovenian, Hungarian, Croatian, Romanian, Albanian, Serbian, Belarusian, Lithuanian, Latvian, and Estonian, with endings explained where you meet them. • Welsh, Irish, Galician, Basque, Catalan, Swahili, Haitian Creole, Nigerian Pidgin, Javanese, Hausa, Ilocano, Maltese, Māori, Somali, Yoruba, Icelandic, Luxembourgish, Afrikaans, Uzbek, and Twi, each with natural audio and its own culture. • Toki Pona, a tiny language made for fun and simple ideas. Bubblegum stays proudly learner-first, learner-funded, and ad-free. Need a hand? Email support@bubblegum.la.
K
Learn and practice Korean vocabulary through engaging quizzes. Track your learning progress and advance your language skills with this educational tool. Designed for all levels of Korean learners.
- Korean vocabulary quizzes
- Progress tracking
- Skill leveling
- Practice Korean words
- Educational tool
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Master Korean vocabulary with fun quizzes! K-Word Master helps you learn and practice Korean words, track your progress, and level up your language skills.
Screenshots
Verdict
The clearest difference is in-app purchases: K at none against Bubblegum's 10. K also leads on device support (3 vs 1). Bubblegum's advantage is ads (none vs shown) and update cadence (daily vs every 8 days). On price, rating and iOS requirement 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. Bubblegum sells 10 in-app purchases, starting at $5.99 per 7 days. K asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Bubblegum against 5.0 for K. That said, the two scores are not equally well evidenced: Bubblegum has 168 ratings behind it against 2, so its average is the more settled of the two.
Bubblegum ships an update daily, K every 8 days. The most recent releases landed on October 20, 2026 and October 2, 2026 respectively.
| Parameter | Bubblegum | K |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (168 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 78.9% of reviews | — |
| Number of ratings | 168 — better | 2 |
| Update frequency | Daily — better | Every 8 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 185 MB | 36 MB |
| Age rating | 12+ | 4+ |
| Developer | Bubblegum Languages | Hyungpil Kim |
Customer experience
Bubblegum
K
In-app purchases
Bubblegum
- Bubblegum Pro Weekly Subscription7 Days trial$5.997 Days
- Bubblegum Pro Monthly Subscription7 Days trial$13.991 Month
- Bubblegum Plus Monthly Subscription$14.991 Month
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- Bubblegum Pro Monthly Subscription$17.991 Month
- Bubblegum Pro Annual Subscription3 Days trial$69.991 Year
- Bubblegum Pro Annual Subscription7 Days trial$69.991 Year
- Bubblegum Pro Annual Subscription$79.991 Year
- Bubblegum Pro Annual Subscription1 Year trial$99.991 Year
- Bubblegum Pro 6-Month Subscription7 Days trial$119.996 Months
- Founding Member$899.99
K
No in-app purchases









