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
Morse Hub
Morse Hub is the most complete CW training app available for new and aspiring ham radio operators
$3.99 · In-app purchases
PRICE
$3.99
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Morse Hub: 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
Introduce streaks, badges, and rewards for completing lessons.
Assumption to check: Limited user engagement due to lack of gamification elements
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to download lessons for offline use.
Assumption to check: No offline access for lessons
Validate with people who use this workflow before building.
Hypothesis 3
Provide immediate feedback and explanations for practice answers.
Assumption to check: Poor user feedback on practice results
Validate with people who use this workflow before building.
Hypothesis 4
Expand lessons to include more advanced topics and interactive content.
Assumption to check: Limited content variety
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
Morse Hub is the most complete CW training app available for new and aspiring ham radio operators. Whether you're just learning the alphabet or preparing for your first on-air QSO, Morse Hub guides you every step of the way. FEATURES: -Learn Morse Code — Master every character with adjustable speed and Farnsworth timing, the proven method used by experienced CW operators worldwide. -Improve My Code — Practice copying words, numbers, punctuation, and mixed characters at speeds you control. -Practice Copying — See exactly where you're missing characters with a three-strike reveal system, then use CUSTOM mode to focus practice on your weak letters. -Sending Practice — Develop your sending technique with a virtual straight key and multiple drill modes including letters, words, phrases, and full QSO simulations. -Realistic QSO Mode — Practice complete ham radio contacts with authentic callsigns, RST reports, and proper operating procedures. Master the Code.
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
Axios
react-navigation
expo-video
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.
