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
TMC Lectures
Kettering’s audio lectures for the NBRC’s Therapist Multiple Choice examination are designed to follow the currently available Study Guide published by Kettering National Seminars.
$84.99 · In-app purchases
PRICE
$84.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
6 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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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 TMC Lectures: 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
Offer more free introductory lectures to attract new users.
Assumption to check: Limited free content available for new users.
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline downloads for courses.
Assumption to check: No offline access for lectures.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance progress tracking with real-time updates and notifications.
Assumption to check: Progress tracking can be inaccurate.
Validate with people who use this workflow before building.
Hypothesis 4
Provide tiered pricing options to cater to different user needs.
Assumption to check: High subscription costs.
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
Kettering’s audio lectures for the NBRC’s Therapist Multiple Choice examination are designed to follow the currently available Study Guide published by Kettering National Seminars. Since 1979, Kettering National Seminars has been the leader in providing exceptional review programs for Allied Health students preparing for their credentialing examinations. Kettering’s program provides each participant with a comprehensive review of Basic and Advanced Respiratory Care along with a step-by-step method of preparation for successful completion of both the NBRC’s Therapist Multiple Choice and Clinical Simulation examinations. **Product discounts provided by Kettering National Seminars are not valid in the Apple App Store
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
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Zustand
react-navigation
expo-av
BUILD KIT DIFFICULTY
Intermediate
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.
