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.
This app provides, for the current weather conditions and a given engine configuration (air filter type, pump type, etc.), a jetting recommendation for Stock Moto / Mod Moto shifter karts with Honda CR125 engines that...
$7.99 · 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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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 Jetting CR125 Shifter Kart: map the core Sports 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: Lack of detailed explanations for jetting specs
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited user customization options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No community features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchase complexity
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.
This app provides, for the current weather conditions and a given engine configuration (air filter type, pump type, etc.), a jetting recommendation for Stock Moto / Mod Moto shifter karts with Honda CR125 engines that have Keihin PWK 38 or PWM 38 carbs. In order to get the weather values, the application can use the location service (GPS or WiFi) to obtain the position and altitude, and the network connection to get the temperature, pressure and humidity from the nearest weather station. Nevertheless, the application can run without GPS, WiFi and internet connection, in this case, the user has to give the weather data. The application is made up of four tabs that are described next: - Results: in this tab, the recommended jetting is shown. It's calculated depending on the weather conditions and the engine and track configuration given in the next tabs. For the jetting setup, the following values are given: main jet, needle type and clip position and pilot jet. Under the recommended main jet, the calculated real value with decimals is shown. It assumes the usage of a #6 slide. Besides this jetting information, the air density and density altitude are shown too. In addition, this tab lets do a fine tunning adjustment for the main (high), needle (mid) and pilot (low) circuits for the jetting setup to adapt to the concrete engine. These values will be stored and used in the future sessions. - Weather: you can set the values for current temperature, pressure, altitude and humidity. The values of this screen can be manually set or can be loaded by the application reading the data from the nearest weather station (from the GPS tab). - Engine: you can set in this screen the information about the engine, that is, the class (Stock Moto or Mod Moto), the air filter type (clamp-on air filter, airbox with or without filter), the fuel feed system (pump-around, non pump-around), the oil mix ratio and the type of the circuit (spring or road racing, short or long). Depending of the track type, the jetting setup will be adapted. - GPS: This tab allows to use the location service (using GPS or WiFi) to get the current position and altitude, and connect to an external service to get the weather conditions of the nearest weather station (temperature, pressure and humidity). The app let you use different measure units: ºC y ºF for temperatures, meter and feet for altitude, and mb, hPa, mmHg, inHg y atm for pressures.
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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.