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.
Yuhu Daily Drawing brings you a new creative challenge every single day
$0.99
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 Yuhu Daily Draw: map the core Graphics & Design 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: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor performance
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.
Yuhu Daily Drawing brings you a new creative challenge every single day. it's simple, inspiring, and designed to help you improve one sketch at a time. Each day features a unique combination of: • A skill focus to develop your abilities • A creative approach or technique to guide how you draw • An inspiring challenge to draw • A creative constraint to push your boundaries • A helpful tip to improve your technique The challenges Challenges are randomly generated by combining skill areas, drawing modes, and subjects. With over 6 million possible combinations, you'll never see the same challenge twice. Some combinations might seem unusual or unexpected, that's part of the fun! Feel free to interpret each challenge in your own creative way. There are no wrong answers. What’s new! Yuhu Daily Drawing now includes hundreds of additional beginner-friendly exercises, improved challenge variety, and more focused practice, including human figure drawing and everyday subjects. Streaks have also been added to help you stay consistent and to follow your daily drawing habit. Features: • 250+ new accessible exercises • Fresh daily challenges shared by all users • Human figure and gesture drawing challenges • Streaks to track consistency and build momentum • Countdown to the next challenge • Helpful tips and guidance • No ads, no distractions • Find a time to draw, and set a reminder. • Clean, minimalist Nordic-inspired design Whether you’re a beginner or a more experienced artist who wants to: - Build a consistent drawing habit - Break creative blocks - Explore new subjects and techniques - Track their daily practice - practice drawing - Improve as an artist or illustrator - Enjoy drawing without pressure - Have fun and explore new things Join and continue your creative journey today with Yuhu Daily Drawing.
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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.