App Overview

GENKI Kanji for 3rd Ed. icon

GENKI Kanji for 3rd Ed.

The Japan Times Publishing, Ltd. · Education

Learn basic kanji through kanji words:

$6.99 · In-app purchases

PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
2.7
21 ratings · Below Average

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

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Rork plan preview for GENKI Kanji for 3rd Ed.: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Incorporate gamification elements like streaks and rewards to encourage daily practice.

Assumption to check: Limited user engagement features like gamification

Validate with people who use this workflow before building.

Hypothesis 2

Ensure thorough testing and a smooth experience with robust error handling.

Assumption to check: Poor user rating due to bugs and crashes

Validate with people who use this workflow before building.

Hypothesis 3

Implement offline access for downloaded lessons and quizzes.

Assumption to check: Lack of offline capabilities for lessons and quizzes

Validate with people who use this workflow before building.

Hypothesis 4

Provide detailed feedback and explanations for quiz answers to enhance learning.

Assumption to check: Inadequate feedback on quiz performance

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Learn basic kanji through kanji words: GENKI Kanji for 3rd Ed. is an app that helps users become able to recognize 317 basic kanji by studying more than 1,100 kanji words at their own pace! This is the official iPhone app from the 3rd edition of GENKI: An Integrated Course in Elementary Japanese, a best-selling series of Japanese learning materials boasting more than 3.5 million copies sold. Advantages ◆ Users can view the kanji words as they like, enabling them to study at their own pace. ◆ By repeating a process of memorization and self-checking, learners can master readings of kanji words and recognition of basic kanji. ◆ Audio recordings have been newly added for each kanji word. ◆ Kanji words already mastered are progressively removed from the study set, so users can concentrate on just the kanji that challenge them, making for a more efficient approach to learning. *This app will not play audio if your device is in Silent mode (Vibrate mode). To hear the audio, please turn Silent mode off. Study methods and functions This app has three main modes: Study, Check, and List. ◇ “Study” allows users to view the kanji words, their readings, and the target kanji for each word over and over, so they can take their time learning. ・Audio recordings of natural pronunciations by native speakers are provided for all kanji words. ・Basic information on the target kanji is provided with fun illustrations and mnemonic hints, as well as animations of their stroke order. (The illustrations and hints are taken from the very popular learning resource “Kanji Look and Learn.”) ・Users can bookmark the kanji words they like. The bookmarked words are compiled in the Bookmark list in "List." ◇ “Check” helps learners to track their mastery. ・Users check their understanding of the kanji words studied and sort them into those mastered and those not yet retained. ・The kanji words already mastered are taken out of the study set, leaving behind just those that still need to be worked on. ◇ “List” displays various lists of all the words and kanji covered by the app so that users can see their progress and review them. ・In the lists arranged in lesson order, a-i-u-e-o order, or alphabetical order, checkmarks are automatically placed next to words that have been mastered. ・Kanji information on the cards can be displayed from the entries in the On/Kun list. ・Users can search kanji words from their target kanji in the Serial # list. ・The words bookmarked in the Study mode are also listed in the Bookmark list. ・The Study view of kanji words or the target kanji can be displayed from the list entries, enabling quick review. ○This app is based on the kanji list from the third edition of GENKI. ○Ads: The app does not display any ads that might interfere with learning.

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Navigation
Expo-AV
Redux
React Native Paper
TypeScript
BUILD KIT DIFFICULTY
Starter

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.