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
Taekwon-do ITF Patterns
Learn Taekwon-Do ITF patterns (Tuls) and sparring (Sambo Matsogi, Ibo Matsogi) for each belt promotion (gup, geop, kup) - all patterns shot in 2 camera angles.
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
15 ratings · Top 30%
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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What's included
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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Taekwon-do ITF Patterns: map the core Sports 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 gamification and progress tracking features
Assumption to check: Limited interactivity for learning patterns
Validate with people who use this workflow before building.
Hypothesis 2
Add forums or social sharing options for users to connect
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline mode for accessing patterns and videos
Assumption to check: No offline access
Validate with people who use this workflow before building.
Hypothesis 4
Offer subscription plans for regular content updates and additional patterns
Assumption to check: Limited content updates
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
Learn Taekwon-Do ITF patterns (Tuls) and sparring (Sambo Matsogi, Ibo Matsogi) for each belt promotion (gup, geop, kup) - all patterns shot in 2 camera angles. Included Tuls: Saju-Jirugi, Saju-Makgi, Chon-Ji, Dan-Gun, Dan-Gun, Do-San, Won-Hyo, Yul-Gok, Joong-Gun, Toi-Gye, Hwa-Rang, Choong-Moo, Kwang-Gae, Po-Eun, Ge-Baek. Also included all Sambo Matsogi A,B,C,D and Ibo Matsogi A,B,C. That's all patterns and sparrings you need to get next ITF belt! Features: + All patterns and sparrings for belt promotions from 10 gup (white belt) to 1 dan (black belt) + You can switch video camera angle while watching the video + AirPlay allows you to transfer the video form your iPhone to your TV + All diagrams for the patterns included + No internet connection needed
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
Firebase
Axios
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BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
