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
SR Measure: Stockpile Volume
SR Measure is the AI that measures any pile from your phone
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.8
48 ratings · Top 50%
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 included17 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 SR Measure: Stockpile Volume: map the core Business 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 additional calibration features for improved accuracy.
Assumption to check: Users find measurement accuracy inconsistent
Validate with people who use this workflow before building.
Hypothesis 2
Add various measurement types like angles or volumes.
Assumption to check: Limited measurement options
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and provide clearer instructions.
Assumption to check: User interface can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Enhance transparency around premium features and subscription benefits.
Assumption to check: In-app purchase process is unclear
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
SR Measure is the AI that measures any pile from your phone. Point, capture, and get verified volume and tonnage in minutes, with a confidence score on every measurement. Trusted in aggregates, mining, and construction. Multi-user Business plans include the web application. Use SR Measure any time you need to measure: - Crushed rock - Landscape materials - Dirt, mulch, or soil - Scrap metals or waste - Aggregate products If you can pile it, we can measure it! No limit on pile height or size. SR Measure will help scope your next job, provide proof of delivery, or confirm supply when received to keep vendors honest. Features: - Simple video tutorials on how to measure - Easy to read volume measurement with 3D model of pile or bunker - Measure piles of any size - Measure freestanding piles, 3- and 2-sided bunkers or bins, and piles against a wall - Measure in cubic feet, yards, or meters - Save your piles and bunker dimensions to measure again Measure Smart. Measure Fast. SR Measure.
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
Expo
React Navigation
React Native Camera
Async Storage
Zustand
React Native Gesture Handler
BUILD KIT DIFFICULTY
Advanced
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.
