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
Emma: Learn Languages
Are you ready to transform the way you learn languages? Introducing Emma, your highly realistic language companion that makes learning captivating, interactive, and genuinely enjoyable!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
3,457 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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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
Preview a sample Build Kit No email needed
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 Emma: Learn 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
Implement offline downloads for course materials.
Assumption to check: Limited offline access to courses and content.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance progress tracking with visual indicators and achievements.
Assumption to check: Poor progress tracking and visual feedback.
Validate with people who use this workflow before building.
Hypothesis 3
Add gamification features like streaks, XP, and levels.
Assumption to check: No gamification elements to engage users.
Validate with people who use this workflow before building.
Hypothesis 4
Create tailored learning paths based on user goals and progress.
Assumption to check: Lack of personalized learning paths.
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
Are you ready to transform the way you learn languages? Introducing Emma, your highly realistic language companion that makes learning captivating, interactive, and genuinely enjoyable! Step into a realm where language challenges become gateways, and conversations spring to life with our enchanting AI partner, Emma. Experience personalized onboarding that aligns with your unique interests and preferences, paving the way for a learning journey tailored just for you. Delve into a variety of real-world scenarios, from education and travel to dating and more, each brought to life through engaging dialogues and interactive experiences. Follow diverse paths and levels, earn badges, and unlock exciting rewards as you advance towards language proficiency. Key Features: - Tailored Learning: Emma offers a customized onboarding process that reflects your unique interests and needs, ensuring a learning journey just for you. - Interactive Dialogues: Converse meaningfully with Emma, your AI sidekick, and practice real-world scenarios in a secure and supportive setting. - Diverse Content: Explore a broad spectrum of topics, including education, travel, and dating, with interactive lessons designed to enhance your language abilities. - Badge Rewards: Earn badges as you navigate different paths and levels, unlocking exciting rewards and gifts to stay motivated and engaged. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://emma-learn.com/privacy.html
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
Supabase
Axios
React Navigation
Zustand
BUILD KIT DIFFICULTY
Advanced
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.
