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
Machinist Pocket Pal
Machinist Pocket Pal: Precision Tools & Resources for Machinists and Engineers
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
4 ratings · Top 30%
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 Machinist Pocket Pal: map the core Reference 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
Expand calculator offerings and add more advanced tools.
Assumption to check: Limited tools and calculators for advanced machinists
Validate with people who use this workflow before building.
Hypothesis 2
Modernize the UI with a more appealing design and smoother transitions.
Assumption to check: User interface feels outdated
Validate with people who use this workflow before building.
Hypothesis 3
Implement a forum or community section for users to share resources.
Assumption to check: Lack of community features for sharing tips or tools
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the purchase process and clearly communicate premium features.
Assumption to check: In-app purchases can be confusing
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
Machinist Pocket Pal: Precision Tools & Resources for Machinists and Engineers Welcome to Machinist Pocket Pal, the all-in-one mobile toolkit created by Wesley Pingleton for machinists and engineers. Simplify and enhance your work with essential tools, calculators, and references—right in your pocket. Key Features 1. Comprehensive Calculators Achieve precise calculations for: Speeds and Feeds: Optimize tool performance. Milling, Lathe, and Drilling: Essential machining formulas. Trigonometry: Right triangle calculations for accurate layout. True Position: Calculate hole positioning for top precision. Newly added G code Milling Tool Path Simulation. 2. Setup Documentation and Library Stay organized with: Setup Documentation: Record setups, machine parameters, and tool details for consistency. Setup Library: Access, review, and refine setups to improve processes over time. 3. Material Hardness and Cutting Speeds Optimize work with info on material hardness and recommended speeds based on soft and hardened states. 4. Tap Drill and Chart Reference Access tap drill sizes for UNC, UNF, metric, and NPT threads for quick, efficient threading. 5. GD&T Help Section Gain insights on Geometric Dimensioning and Tolerancing to meet industry standards. 6. Essential Unit Conversions Convert units in: Degrees Torque Volume Hydraulics Pneumatics Surface Area Weight 7. Extensive Formula Library Get fast access to formulas for: Geometry, Electricity, Hydraulics, Pneumatics, Physics, Material Weight 8. G and M Codes with Examples View real-world G and M code examples for accurate CNC command entries. 9. CNC Macros for Automation Use common macros to streamline CNC setups and automate tasks. Why Choose Machinist Pocket Pal? Machinist Pocket Pal is designed to make work easier and more precise, with calculators, setup documentation, and essential references. Perfect for machinists, engineers, and professionals. Getting Started Download and Explore: Get started by downloading from the App Store. Access Tools, Formulas, and More: Quickly retrieve vital parameters anytime, anywhere. For tech support or questions, contact Wesley Pingleton at [email protected]. Thank you for choosing Machinist Pocket Pal for iOS—your companion for excellence in machining. God bless, and happy machining!
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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
TypeScript
React Native Async Storage
shadcn/ui
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.
