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
The Great Courses
Unlock your potential with The Great Courses, the premier platform for online courses that offers a wealth of educational videos to help you explore, learn, and grow in a wide variety of subjects.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
17,170 ratings · Top 5%
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 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 The Great Courses: 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 courses.
Assumption to check: Limited offline access to courses
Validate with people who use this workflow before building.
Hypothesis 2
Streamline navigation and reduce tabs.
Assumption to check: Navigation can feel cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Add AI-driven personalized course suggestions.
Assumption to check: Lack of personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate quizzes and interactive exercises.
Assumption to check: Limited interactive features in lessons
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
Unlock your potential with The Great Courses, the premier platform for online courses that offers a wealth of educational videos to help you explore, learn, and grow in a wide variety of subjects. The Great Courses specializes in courses taught by the world’s greatest professors and experts covering diverse topics such as history, science, math, philosophy, religion, literature, health, travel, personal & professional development, and more. It’s the place to experience the pure joy of learning—anytime, anywhere. The Great Courses ensures an engaging and enriching learning experience for all. Catering to learners of all skill levels and interests, our platform provides the flexibility to deep-dive into specific topics or explore a variety of subjects at your leisure. The Great Courses grants seamless online and offline access to our extensive library of online courses, empowering you to learn and grow at your own pace. Existing users can sign in to access their purchases and subscription content, while new users can register and subscribe directly within the app to access thousands of educational videos online and offline for one low price. Optimized for iOS 15 and higher, The Great Courses offers a variety of subscription plans, along with a Free Trial to start your educational journey. Payment Details: - Payment will be charged to your Apple account at confirmation of purchase - Subscription automatically renews unless you cancel at least 24 hours before the end of the current period - Your account will be charged for renewal within 24 hours prior to the end of the current period - Subscriptions may be managed or canceled by accessing your Apple account - If you cancel during a Free Trial period, you will have access until the end of the trial period Privacy Policy: https://www.TheGreatCourses.com/Privacy Terms of Service: https://www.TheGreatCourses.com/TOS
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
Supabase
React Navigation
Axios
BUILD KIT DIFFICULTY
Expert
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.
