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.
Meet Buddy, the world’s first voice-based AI teacher for children ages 3-8
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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 Buddy.ai: Kids Learning Games: 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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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 variety and repetitive games
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent performance on older devices
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of personalized learning paths
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User retention drops after initial engagement
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.
Meet Buddy, the world’s first voice-based AI teacher for children ages 3-8. Buddy teaches kids essential communication skills and key early education concepts through a fun mix of voice-based games, cartoons, and activities. The app’s cutting-edge speech technology lets kids chat with Buddy just like a live person, providing unlimited early learning opportunities. That means your child gets all the 1:1 attention they need to succeed in preschool, kindergarten and beyond! Buddy is already one of the leading educational apps for kids worldwide: • Over a million children learn with Buddy every month • 280,000 5-star user reviews • TOP 10 App in Kids and Education charts in major countries throughout Latin America and Europe • Major awards and nominations including GESA London, EnlightEd Madrid, Startup Worldcup San Francisco Ideal for Early Learners Buddy’s learning games and activities are part of a curriculum carefully designed by an expert team of educators and engineers with Ph.Ds in Education Science, Psychology of Learning, and Computer Science. With Buddy, your child will learn the fundamental concepts and skills to thrive in school. • Academics — Practice educational building blocks like numbers, shapes, and colors and get a head start on primary school subjects like Reading, Math, Science and Technology, Music and more • Essential communication and memory skills — Boost vocabulary retention, pronunciation, and listening comprehension • Foundational Social Skills—Build speaking confidence and develop the tools needed for social-emotional development Turn Screen Time Into Learning Time Kids play the Buddy app like their favorite mobile game, thanks to our cool AI character, vibrant 3-D graphics, and curated collection of cartoons and cool collectibles. But parents can trust that their child is learning with every game-based lesson. And the Buddy app’s ad-free environment has no extra charges or in-app monetization, so adults can let kids play (and learn) longer! Best of all, the app lets parents track their child’s progress with weekly progress reports and learning stats. Start Learning with Buddy Today! “Buddy.ai: Early Learning Fun” gives your 3 - 8 year-old child the tools, skills, and confidence to excel in their educational journey. The app’s affordable plan options offer a month of learning for the cost of one live-tutoring session. For English learners and ELD students, Buddy offers a specialized ELD curriculum localized to 8 languages, including Spanish, Arabic, German, French, Portuguese, Polish, Russian, and Turkish. 0(•‿–)0 CONTACTS For more information, please visit our site: https://buddy.ai Any questions? Email us: [email protected] Terms of Use: https://buddy.ai/en/terms Privacy Policy: https://buddy.ai/en/privacy
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.