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.
App Overview
Active Lab
Get ready for an exciting journey into the world of science and discovery with our "Experiments" app! This unique platform is designed for experiment enthusiasts of all ages, where you'll find a wide range of interest...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
N/A
No ratings yet
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Active Lab: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Incorporate user feedback features to continuously enhance the app.
Assumption to check: Lack of user reviews and feedback for improvement
Validate with people who use this workflow before building.
Hypothesis 2
Expand workout library and implement personalized progression tracking.
Assumption to check: Limited workout variety and progression tracking
Validate with people who use this workflow before building.
Hypothesis 3
Add gamification features like badges and rewards for completed workouts.
Assumption to check: No gamification elements to engage users
Validate with people who use this workflow before building.
Hypothesis 4
Introduce community forums or social sharing options to boost user engagement.
Assumption to check: Absence of community or social features
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Get ready for an exciting journey into the world of science and discovery with our "Experiments" app! This unique platform is designed for experiment enthusiasts of all ages, where you'll find a wide range of interesting and easy-to-conduct scientific experiments that can be performed at home or in school. Key Features: Diverse List of Experiments: From growing beans to creating a magnetic train or even a mini-volcano in your kitchen, our experiments cover various areas of science, including biology, physics, chemistry, and more. Detailed Instructions: Each experiment comes with step-by-step instructions and high-quality images to ensure the simplest and safest execution. Safety First: We prioritize safety, providing guidelines and precautions for each experiment, so you can explore the world of science with confidence. Educational Value: Our experiments are designed not only for entertainment but also for learning. Each experiment includes theoretical background and explanations to help you understand the underlying scientific principles. Community: Join our community of science enthusiasts to share your results, ask questions, and get answers from experts and other users.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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BUILD KIT DIFFICULTY
Starter
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.
