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
Adv. Learner’s Dictionary (TC)
ADVANCED DICTIONARY FOR CHINESE LEARNERS OF ENGLISH
$11.99 · In-app purchases
PRICE
$11.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
26 ratings · Top 5%
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/
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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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Adv. Learner’s Dictionary (TC): map the core Reference 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
Implement a local caching mechanism for offline use.
Assumption to check: Limited offline access to dictionary content.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the paywall and payment process.
Assumption to check: In-app purchase process can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Add user profiles and word learning history.
Assumption to check: Lack of personalized user experience.
Validate with people who use this workflow before building.
Hypothesis 4
Optimize search performance and provide instant search results.
Assumption to check: Search functionality can be slow for long queries.
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
ADVANCED DICTIONARY FOR CHINESE LEARNERS OF ENGLISH Find words in English and read what they mean. Definitions are specially written so learners of English can easily understand them and translations of the words are provided in Traditional Chinese. Don’t know a word? Look it up! 40,000+ WORDS Over 40,000 words translated into Traditional Chinese, with specially written English definitions. AUDIO PRONUNCIATIONS Upgrade to the audio version to hear words spoken in British and American English, to help improve listening and pronunciation skills. SEARCH HISTORY Quickly return to words that have previously been looked up, using the search history feature. OFFLINE No internet connection required. Find words anytime. ILLUSTRATIONS AND 80,000+ EXAMPLES Words are explained with pictures and with over 80,000 example sentences. CAMBRIDGE UNIVERSITY PRESS is a world-leading publisher of English learning materials. Expert authors write all of the content in our apps. BUY NOW and never be lost for words! _______________________________________ App for iPhone/iPad Requires iOS 12 or later RELATED APPS Cambridge Advanced Learner’s Dictionary: English - Simplified Chinese Cambridge Advanced Learner’s Dictionary Prefer to use a book? The Cambridge Learner’s Dictionaries are also available in print (cambridge.org/elt/dictionaries). cambridge.org/elt/apps
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.
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BUILD KIT DIFFICULTY
Expert
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.
