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
Stop Smoking In 2 Hours
STOP SMOKING IN 2 HOURS requires ZERO WILLPOWER..
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
2 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 included16 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 Stop Smoking In 2 Hours: map the core Health & Fitness 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
Provide a structured, step-by-step approach to quitting.
Assumption to check: Users often feel overwhelmed by quitting smoking.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate community features for users to share experiences.
Assumption to check: Lack of personalized support.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce gamification elements to keep users motivated.
Assumption to check: Limited engagement after initial sessions.
Validate with people who use this workflow before building.
Hypothesis 4
Offer a wider array of articles and videos tailored to various quitting strategies.
Assumption to check: Users desire more resources and information.
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
STOP SMOKING IN 2 HOURS requires ZERO WILLPOWER... GUMS OR PATCHES... NO GIMMICKS... Just a Simple Way to Freedom. Addiction and health author Jason Vale ran a Stop Smoking clinic for 9 years and successfully helped thousands of people to become smoke-free. Jason himself smoked 40-60 cigarettes a day until he learned the secret to stopping back in 1995 — and hasn’t smoked since! Now, you can learn Jason’s secret from his tried-and-tested programme from the convenience of your own phone. Jason is literally in your pocket every step of the way! Stop Smoking in Just 2 hours and remain Free for Life! There are only 2 simple steps: 1) Watch the short opening video 2) Listen to the two × 1-hour audio sessions That’s it, you are now free — it's that easy! Extra bonus material includes: - Relaxation & hypnotherapy audio recommended each night for 21 days to help sustain your freedom. - Daily motivational coaching videos to keep you on track during the "5 day adjustment period" - SOS videos in case of an “emergency” Curing addiction to nicotine simply involves understanding how the nicotine trap works. The need for nicotine is caused only by the previous dose - it’s a simple chain! The reason it appears so hard to stop is due to the feeling that nicotine withdrawal creates. An insecure and empty a feeling in the smoker’s mind creates panic and fear. This fear is like an invisible prison that keeps people smoking. If you remove the panic and fear through an understanding of what the actual cause is, it can be very easy to stop. http://www.apple.com/legal/itunes/appstore/dev/stdeula
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
Redux
React Navigation
Axios
react-native-paper
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.
