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.
A great reference, testing and education tool
$4.99 · 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.
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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 Learn Muscles: Anatomy: map the core Medical 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 content updates leading to stale information
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult navigation between detailed content
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of interactive learning tools
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription confusion with in-app purchases
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.
A great reference, testing and education tool. Includes 141 beautiful muscle images with name, action, origin, insertion and comments, plus audio pronounciation guide, a quiz maker, an action viewer, 7 3d models, and 6 short videos to create a rich learning experience. FEATURES: -3D MODELS: see the whole picture with seven 3d models that you control, each structure clearly labeled with useful comments. -MUSCLE IMAGES: 141 major muscles, both deep and superficial with all important information and comments, plus the ability to add your own notes. -AUDIO: Pronunciation guide for each muscle. -QUIZ MAKER: Create your own multiple choice quiz on the name, action, origin or insertion... and focus on the leg, arm, torso or head. 480 total questions. If you get it wrong, the app shows the correct muscle image and speaks the name. Also included is a spelling quiz for the muscle names. You can use the favorites section to build your own quizzes. -ACTION VIEWER: 37 joint action animations with the muscles that do the action, plus comments on the mechanics of each joint. -VIDEOS: 6 embedded videos explaining the function of the hip, shoulder, back and face muscles, as well as fascia and the nervous system (20 min total). This robust application is a great teaching and learning tool for students, educators and healthcare practitioners wanting to study or teach the muscular system.
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.