Comparison

Influent Language Learning vs Kbook

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

Head to head
About

Influent Language Learning

Learn new vocabulary and improve pronunciation through an interactive 3D environment. Discover the names of countless objects by tapping them, with additional details available on a second tap. Open drawers and cabinets to find even more items to learn, all while listening to native audio pronunciations.

Highlights
  • Interactive 3D environment
  • Object identification via tapping
  • Native audio pronunciations
  • Vocabulary acquisition
  • Pronunciation practice
  • Explorable interiors
Features
Read full description

Influent is a Language Learning Game focusing primarily on vocabulary acquisition and pronunciation. It was initially developed in Japan at the University of Tsukuba's Entertainment Computing Laboratory under the Monbukagakusho Government Research Scholarship. Inspired by Dreamcast titles of old (namely Shenmue and Toy Commander) Influent immerses players in a fully interactive 3D environment where the names for absolutely every object in the game can be gleaned with a single tap! In fact, even more information can be learned with a double-tap! Every door, drawer, and cabinet can be opened with a tap-and-hold, revealing more things to be learned! Packed to the brim with hundreds of native audio pronunciations (painstakingly recorded specifically for this game), Influent offers players of all ages a unique opportunity to enjoy learning both vocabulary and pronunciation in the language of their choice.

About

Kbook

Learn Korean through engaging comic stories and webtoons. Discover Korean culture and language with over 1000 short comic content pieces. Amateur authors can also gain experience by creating their own webtoons.

Highlights
  • Learn Korean with story comics
  • Read webtoons for language practice
  • Discover Korean culture
  • Content creation for amateur authors
  • Over 1000 comic story contents
  • Government-supported educational platform
Features
Read full description

Welcome to KBOOK. We hope to assist you in learning Korean through daily life story comics or webtoons. KBOOK goes beyond a simple learning platform. Amateur authors can gain valuable experience by creating content and debuting as webtoon writers. The content created by these authors serves as reading material for learning Korean, fostering growth for all involved. In 2023, the KBOOK app was selected as one of the top 3 nationwide, receiving government support and contracting 120 authors. We hope to provide assistance in learning about Korean culture and the Korean language through over 1000 short comic story contents. Join us at KBOOK to learn a language, discover a culture, and embark on a new journey. Start reading Korean with KBOOK today, start creating, and master the Korean language! - Instagram : https://bit.ly/3eG2sa7 - Youtube : https://bit.ly/3i8TJiS - Website : https://kstyles.io - Email : kstyles.koreanclass@gmail.com Terms of use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Influent Language Learning4 screens
Kbook3 screens

Verdict

The call

The clearest difference is rating: Influent Language Learning at 4.3 against Kbook's 3.3. Influent Language Learning also leads on ads (none vs shown) and review sentiment (57% vs 42%). Kbook's advantage is update cadence (monthly vs every 6 months). On price, in-app purchases, monetization model 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. Influent Language Learning sells 19 one-off in-app purchases and Kbook sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Influent Language Learning holds the better App Store score, 4.3 against 3.3. That said, the two scores are not equally well evidenced: Influent Language Learning has 86 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 57% of Influent Language Learning's written reviews are positive against 42% of Kbook's.

UpkeepUpdate frequency

Influent Language Learning ships an update every 6 months, Kbook monthly. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
Influent Language Learning versus Kbook: the parameters behind the verdict, then further details
ParameterInfluent Language LearningKbook
PriceFreeFree
Rating4.3 (86 ratings) — better3.3 (15 ratings)
Positive reviews56.9% of reviews — better41.7% of reviews
Number of ratings86 — better15
Update frequencyEvery 6 monthsMonthly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size402 MB18 MB
Age rating4+4+
DeveloperRobert HowlandKSTYLES CO., LTD.

Customer experience

Influent Language Learning

All ratings76 ratings
Positive82.9%
Neutral7.9%
Negative9.2%
Written reviews58 reviews
Positive56.9%
Neutral12.1%
Negative31.0%

Kbook

All ratings14 ratings
Positive57.1%
Neutral7.1%
Negative35.7%
Written reviews12 reviews
Positive41.7%
Neutral8.3%
Negative50.0%

Bugs and requests

Influent Language Learning

Reported bugs

21 issues
  • Tutorial freezes or breaks
  • Unable to add languages
  • App crashes or stops responding
  • Lost progress
  • Game freezes during vocabulary menu
Show 16 more
  • Words not working in challenges
  • Sound issues (only headphones)
  • No audio
  • UI becomes unresponsive
  • Unable to pan or interact
  • Game gets stuck at the beginning (clicking on objects)
  • Transaction complete but language not downloaded
  • Cannot unlock game after payment
  • iOS update issues
  • Controls don't work
  • Freezes and loses progress
  • Game gets stuck in tutorial
  • UI elements unresponsive
  • Cannot click on phone at the beginning
  • Cannot select middle tab to unlock adjective words
  • Game blocks on a simple interaction

Requested features

9 requests
  • Add more environments (airport, school, city, forest, cafe)
  • Expand the game world beyond the house
  • Add cloud saves
  • Allow PC DLC to be used in app
  • Add English language for free
Show 4 more
  • More instructions on how to play
  • Ability to skip tutorial
  • Controller support
  • More different places to learn from

Kbook

Not enough reviews yet to summarise bugs or requests.

In-app purchases

19 purchases

Influent Language Learning

One-time19
  • FrenchFree
  • ItalianFree
  • KoreanFree
Show 16 more
  • Hindi$2.99
  • Finnish$2.99
  • Welsh$2.99
  • Swedish$2.99
  • Polish$2.99
  • Latin$2.99
  • Portuguese$2.99
  • Brazilian$2.99
  • Dutch$2.99
  • Japanese$2.99
  • Spanish$2.99
  • German$2.99
  • English$2.99
  • Mandarin Chinese$2.99
  • Norwegian$2.99
  • Russian$2.99
7 purchases

Kbook

Subscriptions3
  • 1 Month$4.991 Month
  • 3 Months$12.993 Months
  • 12 Months$34.991 Year
One-time4
  • 1000point$0.99
  • 3100point$2.99
  • 5500point$4.99
Show 1 more
  • 12000point$9.99

Questions

Is Influent Language Learning free?
Influent Language Learning is free to download, with in-app purchases available.
Is Kbook free?
Kbook is free to download, with in-app purchases available.
Which has better reviews, Influent Language Learning or Kbook?
Influent Language Learning is rated higher. Influent Language Learning averages 4.3 out of 5 from 86 ratings, while Kbook averages 3.3 from 15 ratings.
Do Influent Language Learning or Kbook have ads?
Kbook shows ads; Influent Language Learning does not.
Which is updated more often, Influent Language Learning or Kbook?
Influent Language Learning ships an update every 6 months, and Kbook monthly. Most recently, Influent Language Learning was updated on October 24, 2026 and Kbook on October 24, 2026.

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