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
$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 In The Dark, Berenstain Bears: 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 story selection compared to other apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Navigation can be clunky
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of offline access for all stories
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 • An interactive animated storybook originally published by the award-winning Living Books • A tale of taking charge of one’s imagination, especially when it makes you afraid of the dark Review: "Parents for two generations are familiar with the late Stan and Jan Berenstain's Bears and their over 200 books. Wanderful enlivens those classic stories, creating a rich resource for developing reading skills in an animated interactive app. Kids from 2 to 8 will identify with Sister Bear's battle with her fear of the dark in The Berenstain Bears in the Dark. Wanderful offers a superb level of interaction with a well-designed app loaded with varying levels of skill development and simple fun appropriate for eager 2 year olds up to age 8." - Parents' Choice ©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 Berenstain Bears In the Dark is an imaginative interactive reading experience with fully animated content featuring the popular Bear Family – Mama Bear, Papa Bear, Brother Bear, and Sister Bear. This timeless Stan and Jan Berenstain story springs to life on every page. Read and play along as a spooky story Brother Bear reads to Sister Bear keeps her – and eventually the entire family – up all night long. The next day Papa shows Sister how to take charge of her imagination and in the end it’s Brother who is a little afraid in the dark. KEY FEATURES: • Twelve fully animated pages • Virtually every item on each page comes to life when tapped • All words are “active” for extended word play and language learning – tap on any word to hear it spoken • A hidden surprise is on each page – can you find all the lightning bugs? • Move between pages with swipe or with scrolling page navigation • Two modes: “Read to Me” and the fully interactive “Let Me Play” • Virtually every item on each page comes to life when clicked • Multiple settings to further customize the App for your child’s reading experience • Special “About the Authors” video profiling Jan and Stan Berenstain available from within the App • 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 In The Dark Classroom Activities guide • The full 65 page In The Dark Classroom Activities guide is available as an in-app upgrade Wanderful’s goal is to help children discover a lasting love of language through story exploration. We hope The Berenstain Bears In The Dark provides your family, children and students with hours of delightful story play. The Berenstain Bears In The Dark is by Stan and Jan Berenstain, authors of over 200 books starring the Bear family: Mama, Papa, Brother and Sister. Privacy Disclosure Wanderful creates engaging interactive storybooks for children that are educational, fun, and above all safe and appropriate. This app: • does not collect any information • does not contain ads • does not contain in-app purchases, but does allow you to purchase the storybooks • does not have active links to websites or social networks • uses 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.