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
HanViet
HanVietDictionary is a tool for overseas Vietnamese to learn the meanings of many common Vietnamese words that are of Chinese origin.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 HanViet: 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
Expand to include more languages or dialects.
Assumption to check: Limited language support and resources
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate gamification elements for learning.
Assumption to check: Lack of interactive features (like quizzes)
Validate with people who use this workflow before building.
Hypothesis 3
Add functionality for users to practice speaking.
Assumption to check: No speech recognition for pronunciation
Validate with people who use this workflow before building.
Hypothesis 4
Optimize data handling for better performance.
Assumption to check: Poor performance with large datasets
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
HanVietDictionary is a tool for overseas Vietnamese to learn the meanings of many common Vietnamese words that are of Chinese origin. Learners can search for words in Vietnamese to discover their meaning, including the meaning of personal names. Learners will also be able to see how the same Han character is read in different languages including Mandarin, Cantonese, Korean, and Japanese. HanVietDictionary isn't a regular dictionary, it provides the meaning of individual words to encourage learners to combine meanings logically to understand the logic of compound words. For Vietnamese learners of Chinese, HanVietDictionary is a great tool to find the Vietnamese readings of Chinese characters. Search for Chinese characters you are curious about and the various Vietnamese readings will appear to help you solidify your language learning in your native Vietnamese. HanVietDictionary also supports native-Vietnamese words of non-Chinese origin. This is chữ Nôm. Curious learners can see how their ancestors wrote words and represented the Vietnamese language using Chinese-style characters.
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
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BUILD KIT DIFFICULTY
Intermediate
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.
