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
Paranormal Spirit EMF Yes / No
An EMF Version of Yes / No
$1.99 · In-app purchases
PRICE
$1.99
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's included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Paranormal Spirit EMF Yes / No: map the core Lifestyle 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 more interactive elements like sound responses or visual animations.
Assumption to check: Limited engagement and interactivity features
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize their EMF meter display or question categories.
Assumption to check: Lack of user customization options
Validate with people who use this workflow before building.
Hypothesis 3
Enhance the response algorithm to provide more varied and engaging answers.
Assumption to check: Poor response accuracy
Validate with people who use this workflow before building.
Hypothesis 4
Add a feature for users to share experiences or questions with others.
Assumption to check: No community engagement features
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
An EMF Version of Yes / No This app works similar to other Yes / No devices by using the Magnetometer within your phone / tablet to detect changes. The screen will pulse from blue to black and back to blue while waiting for a response. A red dot will circle around the middle showing that the magnetometer is receiving values. If a change is detected on the left it will light up green, if it is detected to the right it will light up red. You can choose between a beep (when a change is detected) or you can set it to speak mode and it will say "yes" or "no". Hit the "Recalibrate" button to recalibrate at anytime. Place your phone dow, open the app and let it calibrate, then start asking questions to the Spirits ... Don't forget to tell them how to use the app. ** Disclaimer ** Use at your own risk, I cannot be held personally responsible for you or any outcome (paranormal or otherwise) from using this app!
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
expo-sharing
react-native-reanimated
Zustand
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.
