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
Francophone In English
Love French music but don’t understand what they’re talking about? You’re not alone
$4.99 · In-app purchases
PRICE
$4.99
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 Francophone In English: map the core Music 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 personalized playlists and recommendations based on user listening habits.
Assumption to check: Limited song discovery options in music apps
Validate with people who use this workflow before building.
Hypothesis 2
Create a straightforward interface for managing downloaded songs.
Assumption to check: Difficulty managing offline downloads
Validate with people who use this workflow before building.
Hypothesis 3
Enhance search capabilities with filters and category browsing.
Assumption to check: Poor search functionality
Validate with people who use this workflow before building.
Hypothesis 4
Simplify subscription management with clear options and easy-to-access settings.
Assumption to check: Subscription management can be confusing
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
Love French music but don’t understand what they’re talking about? You’re not alone. Millions of fans gets hooked on the melody only to get lost in translation. Francophone In English bridges that gap with accurate, contextual English translations synced to your favorite French songs. No more guesswork or awkward Google translate fails. Compatible with Spotify and Apple Music, Francophone In English is the perfect companion for fans, French language learners, and anyone curious about the deeper meaning behind the music. Features •Time synced English lyrics for French and Francophone African songs. •Contextual translations that actually make sense. •Works with Spotify and Apple Music. •Save your favorite tracks for easy access. •Share songs and translations with friends. •Clean, intuitive interface designed for music lovers. •Multiple background options to personalize your experience. Go Premium Unlock the full experience with our premium plan: •Full access to the entire translation catalog. •Instant access to new translations. •Early access to new release translations. •Request up to 5 song translations per month. •Purchase extra translation credits anytime. •Ad-free experience. •Cancel anytime.
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
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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.
