Comparison

Bubblegum vs Ludus

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

Head to head
About

Bubblegum

This app personalizes language learning through AI-generated reading lessons based on your interests. It offers instant word definitions, grammar explanations, and natural audio narration, all within the text.

Highlights
  • AI-generated personalized reading lessons
  • In-text word definitions and grammar help
  • Synchronized audio narration
  • AI tutor for explanations and practice
  • Regenerative Review™ for vocabulary
  • Progress tracking and study stats
Features
Read full description

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, Somali, Icelandic, Luxembourgish, Afrikaans, Uzbek, and Twi, each with natural audio and its own culture. • Greek, Georgian, Burmese, Hindi, Marathi, Nepali, Assamese, Bhojpuri, Maithili, Awadhi, Persian, Dari, Hebrew, and Urdu, with help for words and grammar as you read. • 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.

About

Ludus

Master Korean and French with structured lessons focusing on grammar and vocabulary. Learn Hangul, understand language structure, and practice with interactive games and flashcards. Progress through themed 'stadiums' to build fluency.

Highlights
  • Structured grammar and vocabulary lessons
  • Learn Hangul alphabet
  • Spaced repetition flashcards
  • Multiplayer and solo language games
  • Progress tracking through 'stadiums'
  • Character leveling system
Features
Read full description

Learn Korean and French from the ground up. Start with grammar, then build vocabulary that sticks past a streak. Ludus teaches you how the language actually works: how Hangul letters build into syllables, how sentences fit together, and why the rules are what they are. Join 2,000+ learners mastering language, one lesson at a time. Stadiums We breaks lesson units down into stadiums, structured paths that take you from your first letters and sounds, step by step. Each stadium is a short run of lessons and activities that builds on the last, so you always know what you've learned and what comes next. Read Hangul New to Korean? Start with the alphabet. Lessons break down consonants and vowels and show how they combine into syllable blocks, and our Character Stroke game lets you practice writing each letter. With regular practice, you can start reading Hangul within two weeks! Understand the language Stop learning random vocabulary that doesn't appear in daily life. Lessons teach foundations and grammar concepts, so you know why something is right instead of guessing. You build real structure first, then add vocabulary on top. Discover 1M+ premade flashcards Search through our built-in dictionaries, read definitions, and save any word in one tap. Saved words join your daily review automatically, so you spend your time learning instead of making flashcards or remaking sets. Reviews are scheduled with FSRS, a spaced-repetition algorithm that adapts to how well you recall each word. Words surface right before you forget them. Games Play live multiplayer games in the classroom, or play solo Gravity and destroy vocab asteroids before they reach the bottom of your screen. There is a way to study for every kind of learner. Starter characters Select from our three starters: Marmunch, Lucifin, and Dribbit! Study vocabulary and go through stadiums to level them up with XP. Complete the fourth stadium lesson to unlock our newly added character Pandit. No ads. No AI tutor. Just lessons and real progress. Subscriptions Ludus Premium unlocks all stadium lessons, languages, and unlimited flashcards. Plans are $7.99 per month or $59.99 per year, and prices may vary by region. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel anytime in your Apple ID settings. Terms of Use: https://ludusapp.com/terms Privacy Policy: https://ludusapp.com/privacy-policy Support: admin@ludusapp.com

Screenshots

Bubblegum4 screens
Ludus4 screens

Verdict

The call

The clearest difference is update cadence: Bubblegum at every 2 days against Ludus's weekly. On price, rating, review sentiment and ratings volume 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. Bubblegum sells 7 in-app purchases, starting at $5.99 per 7 days and Ludus sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Bubblegum against 4.8 for Ludus. Both are backed by a comparable volume of ratings — 180 and 177 respectively. Written reviews are what separate them: 81% of Bubblegum's written reviews are positive against 79% of Ludus's.

UpkeepUpdate frequency

Bubblegum ships an update every 2 days, Ludus weekly. Both last shipped on November 8, 2026.

Scorecard1 real difference · 9 level
Bubblegum versus Ludus: the parameters behind the verdict, then further details
ParameterBubblegumLudus
PriceFreeFree
Rating4.9 (180 ratings) — better4.8 (177 ratings)
Positive reviews81.0% of reviews — better79.2% of reviews
Number of ratings180 — better177
Update frequencyEvery 2 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better16.4
Further details — not scored
Size179 MB184 MB
Age rating12+4+
DeveloperBubblegum LanguagesLudus-Language, Inc.

Customer experience

Bubblegum

All ratings180 ratings
Positive97.8%
Neutral0.6%
Negative1.7%
Written reviews21 reviews
Positive81.0%
Neutral9.5%
Negative9.5%

Ludus

All ratings157 ratings
Positive95.5%
Neutral2.5%
Negative1.9%
Written reviews24 reviews
Positive79.2%
Neutral12.5%
Negative8.3%

In-app purchases

7 purchases

Bubblegum

Subscriptions6
  • Bubblegum Pro Weekly Subscription7 Days trial$5.997 Days
  • Bubblegum Pro Monthly Subscription7 Days trial$13.991 Month
  • Bubblegum Pro Monthly Subscription$17.991 Month
Show 3 more
  • Bubblegum Pro Annual Subscription3 Days trial$69.991 Year
  • Bubblegum Pro Annual Subscription7 Days trial$69.991 Year
  • Bubblegum Pro Annual Subscription1 Year trial$99.991 Year
One-time1
  • Founding Member$899.99
2 purchases

Ludus

Subscriptions2
  • Academic Weapon$7.991 Month
  • Annual Subscription7 Days trial$59.991 Year

Questions

Is Bubblegum free?
Bubblegum is free to download, with in-app purchases available.
Is Ludus free?
Ludus is free to download, with in-app purchases available.
Which has better reviews, Bubblegum or Ludus?
Bubblegum is rated higher. Bubblegum averages 4.9 out of 5 from 180 ratings, while Ludus averages 4.8 from 177 ratings.
Do Bubblegum or Ludus have ads?
Neither Bubblegum nor Ludus shows ads.
Which is updated more often, Bubblegum or Ludus?
Bubblegum ships an update every 2 days, and Ludus weekly. Most recently, Bubblegum was updated on November 8, 2026 and Ludus on November 8, 2026.

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