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.
App Overview
いちまると旅しよう！ しりもじ漢検【有料版】
※iPod Touchはストアからアプリのダウンロードは可能ですが、非対応端末となります。非対応端末では動作を保証しておりませんのでご了承ください。
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.0
2 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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for いちまると旅しよう！ しりもじ漢検【有料版】: 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
Introduce new activities and quizzes regularly to keep users engaged.
Assumption to check: Limited content variety, leading to quick user boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Implement onboarding tutorials to guide new users through the app.
Assumption to check: User interface can be confusing for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Provide detailed explanations for correct and incorrect answers to enhance learning.
Assumption to check: Inadequate feedback on quiz performance.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate social sharing options and leaderboards to foster community engagement.
Assumption to check: Lack of social features for motivation.
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
※iPod Touchはストアからアプリのダウンロードは可能ですが、非対応端末となります。非対応端末では動作を保証しておりませんのでご了承ください。 ------------------------------------------- 漢検から、初の漢字学習アプリがリリース！公式キャラクター「いちまる」といっしょに、10級～5級の漢字を楽しく学べます。 日本各地を旅しながら漢字問題を解いていくと、新しいキャラクターやきせかえアイテムをゲットできます！ 問題が解けなくて困ったときは、「いちまる」がしりもじヒントを出してくれます。 「いちまる」といっしょに漢字を勉強する旅に出ましょう！ ※有料版は広告が表示されません。アプリ内課金はありません。 ※無料版とは、広告の有無のみ異なります。収録問題や機能は同じです。 ■アプリ公式サイト https://www.kanken.or.jp/kanken/book_ichimaru/app.html ■お問い合わせ先 公益財団法人日本漢字能力検定協会 お問い合わせメールフォーム https://www.kanken.or.jp/kanken/contact/
Written user reviews are not shown here. Check current App Store reviews >
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 Native
Expo
Supabase
React Navigation
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BUILD KIT DIFFICULTY
Advanced
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.
