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.
Note:
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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 Safety tips: 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 tips and alerts, leading to user dissatisfaction
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Poor user interface and experience
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent notifications
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of user engagement features
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.
Note: Weather warnings and advisories area in Nara City, Nara Prefecture has changed. Please update to the latest version of Safety tips. Also, if you have set up Nara City, Nara Prefecture, please reset the location. This Application notifies a user with EEW, Tsunami Warnings, Volcanic Warnings, Weather Warnings, Heat illness Warnings and Civil Protection Information issued in Japan. It is a free application developed under the supervision of Japan Tourism Agency. The Application provides various functions useful for foreign tourists in Japan. The application is available in five languages: English, simplified and traditional Chinese, Korean, and Japanese. <Main functions and its utilization> -Receiving Earthquake Early Warnings, Tsunami Warnings, Volcanic Warnings, Weather Warnings, Heat illness Warnings and Civil Protection Information. Before using the Application for the first time, select locations for which you wish to receive warnings from the Settings Menu (you may select a maximum of five locations (in Japan only))(*). Users will receive notifications when Earthquake Early Warning for local earthquakes of seismic intensity level 4 or greater, Tsunami Warning, Volcanic Warnings, Emergency Warnings , Heat illness Warnings, or Civil Protection Information are issued for the selected locations. Also, please make sure that the device which has not been changed a prediction point for more than 1 month from final change date of setting will not be able to receive notifications. If you turn automatic setting of a point on, you can receive notifications even in the case that it has been more than 1 month since you set a prediction point. (*) It is necessary to activate the Location Information Service (GPS), if you wish to set locations by using GPS. GPS is also used to display your current location on the map. -Earthquakes Information on past earthquakes. A maximum of ten records (seismic intensity level of 3 or higher.) -Weather Warnings Weather Warnings (heavy rain, flood, violent wind, severe snowstorm, heavy snow, high seas, storm surge) and Emergency Warnings (heavy rain, violent wind, severe snowstorm, heavy snow, high seas, storm surge) issued for the selected locations. -Volcanic Warnings Currently issued Volcanic Warnings. -Heat illness Warnings Currently issued Heat illness Warnings. -Medical Institutions List of medical facilities accepting foreigners (Provided by the Japan Tourism Agency.) -Evacuation advice / instruction etc. Provides Evacuation advice / instruction information. Also provides Shelter Information. (Link to external application.) ※Please note that information of municipalities using "L alert" will be displayed. -Learning Materials Knowledge you want to know before a disaster occurs. -Communication cards A set of question sentences that can be used when asking questions to people around you during a disaster. -Emergency Contacts Numbers to call in case of emergency. -Links Links to other sources of information that may be necessary during disaster situations (contact information of embassy, nearest tourist information centers, etc.), and other information concerning disasters and tourism. - Civil Protection Information Safety tips delivers information regarding ballistic missile attacks among civil protection information from Fire and Disaster Management Agency. While the application and various types of information are free, communication charges related to download and use of Application shall be borne by the user. We will not be liable for any losses and/or damages resulting from the use of the Application. For support site of Safety tips, see here -> http://www.rcsc.co.jp/safetytips-sp
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.