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
Self Help Classics .
Always at hand on the go: 60 life changing masterpieces from Napoleon Hill, Dale Carnegie, Ralph Waldo Emerson, Florence Shinn and more
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
157 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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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Self Help Classics .: map the core Books 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 a wider library by partnering with publishers.
Assumption to check: Limited selection of books compared to larger platforms
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline access for downloaded books.
Assumption to check: No offline reading mode
Validate with people who use this workflow before building.
Hypothesis 3
Add user reviews and discussion forums.
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the purchase process and provide clear pricing.
Assumption to check: In-app purchases can be confusing
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
Always at hand on the go: 60 life changing masterpieces from Napoleon Hill, Dale Carnegie, Ralph Waldo Emerson, Florence Shinn and more. * Featured by Apple and tens of personal development blogs * Develop and grow with the wisdom of the best self-help authors & self-made billionaires. Receive 30+ of the best self help books when you download the app; use the Premium Bundles to expand your collection up to 60 titles of wisdom. --- • Kristen Butler, PowerofPositivity.com - "I was so excited when I found this app – if you are passionate about learning and growing, you will too" • AppPicker.com - "There are 60 titles available, all of which offer inspiration, ways to change and improve your life, and the kind of motivation you need to take charge of your own life" • Michelle McCullough (www.speakmichelle.com) - "If you have a smart phone, you need - and I mean NEED - the app Self-Help Classics" --- Hand picked best-selling authors to help your mind and spirit: Dale Carnegie, Napoleon Hill, Seneca, James Allen, Benjamin Franklin, Andrew Carnegie, Florence Shinn, Wallace Wattles, Henry Ford, Albert Einstein... and more. Several of the included masterpieces: "The Art of Public Speaking" - Dale Carnegie "Think and Grow Rich" - Napoleon Hill - the most popular motivational book of all-times "The Master Key System" - Charles F. Haanel "The Art of Money Getting aka Golden Rules for Making Money" - P. T. Barnum "Acres of Diamonds" by Russell H. Conwell - the most popular motivational speech in history "The Science of Getting Rich" - Wallace Wattles "Autobiography of Andrew Carnegie" - Andrew Carnegie "Letters from a Stoic" - Seneca "Self-Reliance" - Ralph Waldo Emerson "As a Man Thinketh" - James Allen "Dynamic Thought" - Henry Thomas Hamblin "Art of War" - Sun-Tzu "As a Man Thinketh" - James Allen "Self-Reliance" - Ralph Waldo Emerson "Self Help" - Samuel Smiles "The Game of Life and How to Play it" - Florence S. Shinn Read full table of contents : www.cognitivebits.com/selfhelp/contents.html
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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 Navigation
Expo
Zustand
Firebase Authentication
React Query
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.
