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
Iori Flashcards : Languages
Learning a foreign language has never been so simple and motivating!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
198 ratings · Top 15%
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 included18 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 Iori Flashcards : Languages: 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
Allow users to add images and audio to flashcards.
Assumption to check: Limited flashcard customization options
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline downloads for flashcards.
Assumption to check: No offline access for flashcards
Validate with people who use this workflow before building.
Hypothesis 3
Integrate a spaced repetition feature for better retention.
Assumption to check: Lack of spaced repetition algorithm
Validate with people who use this workflow before building.
Hypothesis 4
Enable sharing flashcards and progress on social media.
Assumption to check: No social sharing features
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
Learning a foreign language has never been so simple and motivating! With Iori Flashcard, turn your revision into a real game thanks to a fun, effective, and personalized method. - Learn the language of your choice Discover complete courses for each language Review with thematic decks adapted to your level From essential vocabulary to useful everyday phrases - Gamified learning Unlock achievements and beat your high scores Track your progress statistics (accuracy, combos, cards learned) Stay motivated with a simple and fun system - Create your own courses Add your own words and expressions Build your own custom flashcard decks Learn exactly what you need - Why choose Iori Flashcard? A fast and effective memorization method A colorful and intuitive interface Ideal for learning anywhere, even in just a few minutes a day Whether you're a beginner or advanced learner, Iori Flashcard helps you progress every day and retain your knowledge for a long time. - Download Iori Flashcard and start your language journey today! Privacy Policy: https://lioruby.notion.site/Privacy-Policy-27f2985deb2e802ba789c9d3acba2188?source=copy_link Terms of Use: https://lioruby.notion.site/Terms-of-Use-27f2985deb2e8052b2d2d9ffcea55b61?source=copy_link
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
Zustand
Victory Native
React Navigation
Expo Image Picker
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.
