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.
Wherever you are, Barometer gives you the local atmospheric pressure, directly on your device
$1.99 · 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.
First kit free with a verified email
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Barometer - Air Pressure: map the core Weather workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
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: Often lacks accurate pressure readings in certain locations
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited historical data view
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Notifications can be spammy
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchases can be confusing
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.
Wherever you are, Barometer gives you the local atmospheric pressure, directly on your device. With an intuitive and accurate design, Barometer offers a pleasant experience and reliability in its use. Make sure you have turned on your device's location services. The display will show the name of the location and the current air pressure, also indicating the weather conditions. Barometer gives you the possibility to choose the pressure from your device (via the device's pressure sensor if present) or to use the atmospheric pressure of the weather station closest to your location. CHARACTERISTICS • Real-time atmospheric pressure measurement • Device pressure support (device sensor) • Reference needle (track previous pressure reading) • Ability to select the Barometer of the weather station or device • Supported units of measurement in mBar, inHg, mmHg, hPa, kPa, torr • Forecast graph for each location (accessible via In-App purchase) • 3-day daily forecast (accessible via In-App purchase) • Dynamic indication of the forecast in the current time (accessible via In-App purchase) • Maximum and minimum daily pressure indication (accessible via In-App purchase) • Location detection • Weather conditions detection • Search location • Save favorite places (unlimited) • iCloud support • Reliability in its use • Intuitive graphics • Easy to use UNIT OF MEASURE You can easily choose to see the atmospheric pressure measured in: • Millibar (mBar) • Inches of mercury (inHg) • Millimeters of mercury (mmHg) • Hectopascals (hPa) • Kilopascals (kPa) • Torr (torr) SUPPORT If you like the application, don't forget to leave us a review on the App Store. For suggestions contact us at [email protected], or visit www.lionsapp.com
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.