Comparison

Juken vs Shaded Learning

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

Head to head
About

Juken

This app offers a fast and efficient way to review WaniKani vocabulary. It uses a minimalistic interface with swipe gestures for quick answer submission, inspired by popular flashcard and dating apps. A WaniKani account is required to use its features.

Highlights
  • Minimalistic design
  • Fast review process
  • Swipe gestures for answers
  • Tinder-like interface
  • WaniKani integration
Features
Read full description

Juken is a minimalistic review app for WaniKani optimized for speed. It eliminates the need for typing; just recall, reveal and swipe. The user experience was inspired by the popular flashcard app Anki in the sense that it allows you to reveal the answer instead of having to typing it out, and it features a Tinder-like swipe gestures to quickly submit your answers. Just login with your WaniKani Personal Access Token and start swiping. Note: This app requires a WaniKani account, which could be obtained at https://wanikani.com

About

Shaded Learning

Master Japanese vocabulary and grammar using spaced repetition and advanced language models. The app intelligently parses your answers, reinforcing incorrect words and strategically using correct ones to build new sentences for faster learning.

Highlights
  • Spaced repetition system
  • Language model integration
  • Intelligent answer parsing
  • Vocabulary acquisition
  • Grammar learning
  • Sentence building
Features
Read full description

Shaded learns where language breaks down for you. Practice real sentences in Japanese, Spanish, and English. Get feedback tied to the exact words, patterns, and skills you missed. Then keep moving through lessons built around what you're ready to use next. NOT FLASHCARDS. NOT A FIXED COURSE. NOT A CHATBOT. Shaded is a guided learning system that watches how you answer, finds the weak spots underneath, and turns them into your next useful practice step. • No deck maintenance — review comes from your live mistakes and due skills, not from cards you build, tag, and prune yourself. • No one-size-fits-all path — two learners practicing the same language see different prompts, because their weak spots are different. • No ungrounded chat drift — AI practice is paired with dictionary anchors, reviewed material, and source-backed examples. IT LEARNS THE PIECES, NOT JUST THE SENTENCE Every sentence you practice is broken into its real units — words, particles, patterns — and each is tracked on its own: • Grounded, not guessed: checked against real dictionaries and sources, not an AI's hunch. • One meaning, many forms: 食べる, 食べます, and 食べた are one thing to learn, not three cards. • Known by skill: reading a word isn't saying it. Reading, writing, listening, and speaking are tracked separately. MODES THAT SHARE ONE LEARNER MODEL • Flow — focused practice built from recent misses, due review, and your level. • Passage — read and listen to longer material chosen for what you're ready for. • Goals & concepts — see what's due, what changed, and what to do next. • Voyage — your progress as a route you can watch advance. Daily study moves the ship. BUILT FOR REAL LANGUAGE PAIRS English speakers learning Japanese (kana, particles, readings, and sentence patterns, with scaffolding that eases off as things stick) or Spanish (verbs, agreement, and listening in real sentences) — and Japanese or Spanish speakers learning English, with explanations in your language where they help. SYNCED WITH THE WEB Start on your phone; continue at shaded.app in any browser. The weaknesses Shaded finds on your commute become the focused session you finish at your desk. Built for the messy middle — the stretch between knowing a rule and using it naturally. Shaded keeps learning from what happens when you try to use the language. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Juken4 screens
Shaded Learning4 screens

Verdict

The call

The clearest difference is in-app purchases: Juken at none against Shaded Learning's 1. Juken also leads on ads (none vs shown) and iOS requirement (10.0 vs 15.0). Shaded Learning's advantage is update cadence (weekly vs fortnightly). On price, rating, ratings volume 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. Shaded Learning sells 1 in-app purchase, starting at $3.99 per month. Juken asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Juken against 5.0 for Shaded Learning. Both are backed by a comparable volume of ratings — 7 and 3 respectively.

UpkeepUpdate frequency

Juken ships an update fortnightly, Shaded Learning weekly. Both last shipped on October 4, 2026.

Scorecard5 real differences · 5 level
Juken versus Shaded Learning: the parameters behind the verdict, then further details
ParameterJukenShaded Learning
PriceFreeFree
Rating5.0 (7 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews—
Number of ratings7 — better3
Update frequencyFortnightlyWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size86 MB283 MB
Age rating4+12+
DeveloperOzBuilds, LLCShaded

Customer experience

Juken

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Shaded Learning

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Juken

No in-app purchases

1 purchases

Shaded Learning

Subscriptions1
  • Shaded Monthly$3.991 Month

Questions

Is Juken free?
Juken is free to download, with no in-app purchases.
Is Shaded Learning free?
Shaded Learning is free to download, with in-app purchases available.
Which has better reviews, Juken or Shaded Learning?
Juken and Shaded Learning are both rated 5.0 out of 5 on the App Store, from 7 and 3 ratings respectively.
Do Juken or Shaded Learning have ads?
Shaded Learning shows ads; Juken does not.
Which is updated more often, Juken or Shaded Learning?
Juken ships an update fortnightly, and Shaded Learning weekly. Most recently, Juken was updated on October 4, 2026 and Shaded Learning on October 4, 2026.

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