Comparison

Bubblegum vs FlashFluency

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

Head to head
About

Bubblegum

Learn languages through personalized reading content and AI-powered assistance. Tap any word for instant definitions, grammar notes, and cultural context. Features natural audio narration and a unique review system to reinforce vocabulary within new lessons.

Highlights
  • Personalized AI-generated reading lessons
  • Tap-to-translate word definitions and grammar
  • Synchronized audio narration
  • AI tutor for explanations and practice
  • Regenerative Review™ vocabulary reinforcement
  • 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, Hindi, Persian, 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

FlashFluency

Master Korean from basic Hangul to fluency with AI-powered pronunciation feedback and sentence building. Learn one new concept at a time with spaced repetition for effective memorization. Instant explanations for vocabulary and grammar are available.

Highlights
  • Syllable-level AI pronunciation feedback
  • AI sentence coach for writing practice
  • +1 system for learning one concept at a time
  • Spaced repetition for memorization
  • Instant vocabulary and grammar explanations
  • Frictionless learning experience
Features
Read full description

Learn Korean from the Korean you care about, or follow a complete TOPIK or KIIP curriculum. Flash Fluency runs on one loop: choose what you want to learn, study it until it sticks, then speak it. 1. SELECT Follow a curriculum: • TOPIK 10K: 10,000 words and 322 grammar points covering TOPIK levels 1 to 6 • KIIP: the vocab and grammar of KIIP levels 1 to 4 • Everyday 5K: the 5,000 most common Korean words plus core grammar Or turn anything into a lesson. Song lyrics, a news article, a drama script, your class notes. Paste in any Korean and Flash Fluency pulls out every vocab word and grammar point to teach you. 2. STUDY Every sentence introduces exactly one new concept, so you're never lost. Read it, hear it, fill it in. Spaced repetition brings each one back right before you'd forget it, and progress in one skill carries into the others. Then write real Korean with what you just learned. Every translation comes back with corrections, naturalness tips, and style notes, down to the particle. 3. SPEAK Get AI feedback on every syllable you say, covering every Korean pronunciation rule. Compare your recording to a native voice block by block, so you know exactly what to fix and how. NEW TO KOREAN? Start with the Hangul course, then move on to Korean Fundamentals. No prior Korean needed. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.flashfluency.net/privacy_policy

Screenshots

Bubblegum4 screens
FlashFluency4 screens

Verdict

The call

The clearest difference is update cadence: Bubblegum at every 2 days against FlashFluency's every 3 weeks. Bubblegum also leads on ratings volume (179 vs 3). FlashFluency's advantage is review sentiment (100% vs 81%) and iOS requirement (13.0 vs 16.0). On price, rating, ads and in-app purchases 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 FlashFluency sells 2 in-app purchases, starting at $5.99 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 5.0 for FlashFluency. That said, the two scores are not equally well evidenced: Bubblegum has 179 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 81% of Bubblegum's written reviews are positive against 100% of FlashFluency's.

UpkeepUpdate frequency

Bubblegum ships an update every 2 days, FlashFluency every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Bubblegum versus FlashFluency: the parameters behind the verdict, then further details
ParameterBubblegumFlashFluency
PriceFreeFree
Rating4.9 (179 ratings)5.0 (3 ratings) — better
Positive reviews81.0% of reviews100.0% of reviews — better
Number of ratings179 — better3
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size278 MB94 MB
Age rating12+12+
DeveloperBubblegum LanguagesFlash Fluency

Customer experience

Bubblegum

All ratings179 ratings
Positive97.8%
Neutral0.6%
Negative1.7%
Written reviews21 reviews
Positive81.0%
Neutral9.5%
Negative9.5%

FlashFluency

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

FlashFluency

Subscriptions2
  • Flash Fluency Core7 Days trial$5.991 Month
  • Flash Fluency Premium7 Days trial$12.991 Month

Questions

Is Bubblegum free?
Bubblegum is free to download, with in-app purchases available.
Is FlashFluency free?
FlashFluency is free to download, with in-app purchases available.
Which has better reviews, Bubblegum or FlashFluency?
FlashFluency is rated higher. Bubblegum averages 4.9 out of 5 from 179 ratings, while FlashFluency averages 5.0 from 3 ratings.
Do Bubblegum or FlashFluency have ads?
Neither Bubblegum nor FlashFluency shows ads.
Which is updated more often, Bubblegum or FlashFluency?
Bubblegum ships an update every 2 days, and FlashFluency every 3 weeks. Most recently, Bubblegum was updated on November 5, 2026 and FlashFluency on October 31, 2026.

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