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.
• Winner of a MOM'S CHOICE Gold Award
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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 Tortoise & the Hare: map the core Books 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 interactivity in stories can lead to user disengagement.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Subscription model can be confusing for users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Navigation can feel cluttered with too many options.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited content updates can lead to stagnation.
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.
• Winner of a MOM'S CHOICE Gold Award • Winner of a PARENTS’ CHOICE Gold Honor Award • A fully interactive storybook for young and emerging readers • Based on the award winning titles originally published by Living Books Review: "Every word on every page is interactive, and the book comes with multiple languages, parent tips, and an extensive teacher resource guide to use the app/storybook in the classroom setting. These features combined with top-notch storytelling make this app worth it's $4.99 price tag. Download it, and enjoy hours of fun with your little one." - Tim Leverett ©2013 Parents' Choice Have you ever wished you could play inside a story and really interact with all the characters and words? Now you can! The Tortoise and the Hare is an imaginative and interactive reading experience with fully animated content loved by children, parents and teachers alike. Wanderful brings every page of this classic Aesop’s fable to life. Read and play along as the Tortoise proves that slow and steady wins the race. Join him as he accepts the much faster Hare’s challenge to a race – one that doesn’t turn out exactly as the Hare had planned. KEY FEATURES: • Includes both English and Spanish with dynamic switching between the languages • French available as an upgrade • Over 500 interactive words in each language • 12 fully interactive pages of word play • Virtually every item on each page comes to life when tapped • A hidden animated surprise on each page – see if you can find Ruppert the dragonfly • Move between pages with swipe or with scrolling page navigation • Multiple settings to customize the App for your child’s reading experience • Two modes: “Read to Me” and the fully interactive “Let Me Play” • Parental tips to help you get the most out of this Wanderful interactive storybook • Teacher resources include a 31 page overview of Wanderful interactive storybooks Classroom Activities and a free preview of the Tortoise and the Hare Classroom Activities guide • The full 47 page Classroom Activities guide is available as an upgrade Wanderful’s goal is to bring outstanding interactive storybooks to a new generation of children. We hope The Tortoise and the Hare provides your family, children and students with hours of story play. The Tortoise and the Hare is credited to Greek storyteller Aesop (620-564 BC). This version is retold by Living Books creator Mark Schlichting. The characters were designed by Michael Dashow and backgrounds were painted by Barbara Lawrence, each an original Living Books team member. Privacy Disclosure Wanderful creates engaging interactive storybooks for children that are educational, fun, and above all safe and appropriate. Our apps: • do not collect any information • do not contain ads • do contain in-app purchases • do not have active links to websites or social networks • do use analytics to improve our app experience but only in aggregate and never with personally identifiable data
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.