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.
The pluviometer is an instrument used to measure the amount of rain fall in a day
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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.
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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 Pluviometer - Rain gauge: map the core Weather 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 functionality for detailed weather analysis
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Cluttered UI that could confuse users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent data accuracy and updates
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Poor customer support and user feedback response
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.
The pluviometer is an instrument used to measure the amount of rain fall in a day. It is part of the main instruments of a common meteorological station. Now you can have it on your iPhone, iPad or iPod. Pluviometer will give you the forecast of rain in one hour, the current level of precipitation, the total rainfall of today and tomorrow, in all places of the world. Its unique design has been created to offer maximum visual simplicity on the rain. [Features] • Total rain indicator for today and tomorrow • Current rain indicator • Rain in 1 hour indicator • Current location indicator • Current map indicator • Rain gauge human-friendly • You can choose to display the amount of rainfall in mm, cm or inches • Full scale automatically adjusted (according to the maximum level of rain expected) • Automatic full scale supported: 1 cm, 2 cm, 5 cm, 10 cm, 20 cm, 50 cm, 100 cm (total daily rain) • Save favorite places • Data provider Weatherstack • Your GPS location is used to display the current amount of precipitation • Intuitive Graphics • Ease to use [ History ] Rain measurements were reported in ancient literature in India A.C. 400, Palestine 200 A.C. in China around 1247. The first standardized rain gauge was built in Korea in 1441 by Prince Munjong, son of King Sejong the Great. In 1639 Benedetto Castelli, a student of Galileo, it made measurements of rainfall using a cylindrical container made of glass, where it measured the water level after the rain. In 1662 Christopher Wren invented the rocking rain gauge, the prototype of the modern rain gauges, which was perfected in 1670 by Robert Hooke. Up to about 10-20 years ago it was indicated as rain gauges those instruments that in fact they had no way to record the time evolution of the rain and which were controlled to a daily basis. Unlike the pluviograph was a tool that could, by means of a mechanical registration system, to graphically report the amount of rain fall in a certain time interval With the development of electronics and then computer science , the pluviographs have gone increasingly asserting itself. [Design] The graphics are perfected to the last detail to make using simple, fluid and pleasant. Optimized for Retina Display on the iPhone and iPad. [Supported languages] • English, Spanish, French, German, Italian, Portuguese, Dutch, Russian, Chinese, Japanese, Danish, Finnish, Norwegian, Swedish. [Support] If you like the app, don’t forget to leave us a review on the App Store. For suggestions please contact us at [email protected], or visit lionsapp.com.
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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.