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
Truth Scan Biometric Polygraph
Truth Scan is the most advanced biometric polygraph test available on iPhone.
$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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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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 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 Truth Scan Biometric Polygraph: map the core Entertainment 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 clear disclaimers and allow users to share their results for validation.
Assumption to check: Inaccurate results can lead to user distrust.
Validate with people who use this workflow before building.
Hypothesis 2
Add social sharing options and gamification elements.
Assumption to check: Limited engagement features.
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate tutorials and explanations about how biometrics work.
Assumption to check: Lack of educational content about biometric responses.
Validate with people who use this workflow before building.
Hypothesis 4
Implement a feedback system for users to report their experiences and suggest improvements.
Assumption to check: No user feedback mechanism.
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
Truth Scan is the most advanced biometric polygraph test available on iPhone. Using your camera, microphone, and Apple Watch, Truth Scan measures real physiological signals — heart rate, voice stress, and behavioral patterns — to detect deception with cutting-edge AI analysis. FEATURES: • Camera-based heart rate monitoring via fingertip PPG • Real-time voice stress and behavioral analysis • Remote sessions — test anyone, anywhere in the world • Live Apple Watch heart rate streaming • AI-powered session analysis with deep behavioral insights • Full session report with AI summary HOW IT WORKS: Start a test, answer the baseline questions, then let Truth Scan analyze the biometric data in real time. Share a 6-digit code for remote sessions and monitor someone else's responses live. For entertainment purposes only. Privacy Policy: https://glowinmedia.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/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
@react-navigation/native
axios
expo-sensors
shadcn/ui
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.
