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
Tape Measure Radar
Tape Measure Radar: Pro-Grade Measurement Mastery
$2.99 · In-app purchases
PRICE
$2.99
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/
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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 Tape Measure Radar: 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
Implement advanced algorithms for better precision.
Assumption to check: Limited accuracy in distance measurement
Validate with people who use this workflow before building.
Hypothesis 2
Design a more streamlined interface with fewer distractions.
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer options and prompts for saving data.
Assumption to check: Difficulty in saving measurements
Validate with people who use this workflow before building.
Hypothesis 4
Add audio/visual feedback during and after measurements.
Assumption to check: Lack of user feedback on measurements
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
Tape Measure Radar: Pro-Grade Measurement Mastery Stop second-guessing your tape. Whether you're a seasoned carpenter, a DIY weekend warrior, or a student mastering the trades, Tape Measure Radar turns your iPhone into the ultimate measurement training and calculation hub. Developed by Mukalla Tech LLC, this isn't just a ruler app—it’s a precision suite designed to help you read the tape faster, convert units instantly, and calculate complex room areas with visual confidence. Key Features Radar Trainer (Interactive Ruler): Master the 1/16th marks. Drag and scrub a hyper-realistic digital tape to see live conversions between fractions, decimals, and metric equivalents. Tap any mark to reveal professional "pro-tips" about its common use in trades like plumbing, drywall, and cabinetry. Precision Fraction Breakdown: Access a comprehensive library of every standard imperial increment. Search for specific values, favorite the ones you use most, and visualize their "fill" ratio to better understand spatial relationships. Advanced Unit Converter: Effortlessly flip between Inches, Feet, Yards, Millimeters, Centimeters, and Meters. Includes a live "Quick Chart" that displays all unit equivalents for your input value at a glance. Room & Area Calculator: Planning a flooring or paint project? Break complex rooms into labeled, color-coded sections. The app automatically draws a visual diagram of your project and calculates total square footage (or square meters) instantly. Built for the Professional Workflow Dark Mode Optimized: Designed for the job site, with high-contrast themes that are easy on the eyes in any lighting. Haptic Feedback: Feel the "click" of every 16th-inch mark as you scrub the ruler for a tactile, real-world experience. Precision Engineering: Built on the latest iOS 26+ technology, providing lightning-fast performance and buttery-smooth animations. Privacy First: No data tracking. Your projects and history stay on your device. Measuring the Unseen. From the first frame to the final trim, Tape Measure Radar is the only measurement companion you’ll ever need. Download Tape Measure Radar today and never misread a mark again.
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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 Native
Expo
react-navigation
expo-camera
zustand
react-native-arkit
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.
