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
Mastering French Synonyms
This app provides "Dictionary of French Synonyms Arranged in Groups for the Convenience of English Students".
$0.99 · In-app purchases
PRICE
$0.99
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 Mastering French Synonyms: 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
Incorporate quizzes or games to enhance learning.
Assumption to check: Lack of engaging content and interactivity
Validate with people who use this workflow before building.
Hypothesis 2
Expand the database with more synonyms and examples.
Assumption to check: Limited synonym database
Validate with people who use this workflow before building.
Hypothesis 3
Add features for user contributions and discussions.
Assumption to check: No community features
Validate with people who use this workflow before building.
Hypothesis 4
Provide more value in free tier to attract users.
Assumption to check: Monetization barriers
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
This app provides "Dictionary of French Synonyms Arranged in Groups for the Convenience of English Students". French is infinitely rich in nuances and finesse or shades of meaning. For example, the words pendant and durant are generally given as French equivalents for during, while affreur, effrayant, effroyable and épouvantable may all be taken as meaning fearful. Do you know what are differences between affreux, effrayant, effroyable and épouvantable? This app will help you to master French Synonyms, understand the difference in meaning and how to use a word in context. This app is a great learning tool for anyone who wants to learn French. ■ French synonyms - Over 1130 entries with detailed explanation - Built-in dictionary - Bookmark an entry - Search an entry - Explore all entries - Search in meaning - Learn 10 entries daily ■ Synonym lists - 38 Synonym lists - Learn entries in a list using flashcards
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
react-navigation
react-native-async-storage
axios
react-native-share
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.
