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.
Gas Meter Simulator is a two-phone training simulator designed for HazMat technicians, firefighters, and first responders learning
$0.99 · In-app purchases
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.
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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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Gas Meter Training Simulator: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Limited interactivity in educational apps can lead to disengagement.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Poor tracking of user progress can make learning less effective.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of offline access can hinder learning in remote locations.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate user support and feedback mechanisms.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Gas Meter Simulator is a two-phone training simulator designed for HazMat technicians, firefighters, and first responders learning multi-gas atmospheric monitoring. The instructor phone controls all sensor readings in real time — setting gas concentrations, triggering alarms, and simulating power cycles — while the trainee phone displays a realistic gas meter interface and responds to changes live over a peer-to-peer local connection. FEATURES • Simulates O2, LEL, CO, H2S, VOC, SO2, NH3, Cl2, HCN, NO2, PH3, and CO2 sensors • 12+ built-in training scenarios including O2 deficiency, CO incidents, clandestine lab, chlorine release, and more • Instructor talking points for each scenario • Realistic alarm levels: LOW, HIGH, STEL, TWA • Trainee metering height affects readings based on vapor density • Peer-to-peer connection — no internet required in the field • Integrated DOT hazardous materials library with ERG guides, PPE levels, NIOSH REL, OSHA PEL, and ACGIH TLV data Designed for classroom and field training exercises. Requires two iPhones on the same local network or Bluetooth range.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.