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 A Fight, 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 content variety
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: High price for a single book
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can feel outdated
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of interactivity in reading experience
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 as the award-winning Living Books • A tale of how sibling arguments can sometimes escalate, and how they can be resolved Review: “The original Living Books Software Series of interactive storybooks are the gold standard of interactive books. These were originally developed many years ago for desktop computers yet they still hold up on the iPad, as though they were new apps designed just for the tablet. The thought and creativity that was put into the interactivity in Berenstain Bears Get Into a Fight is largely unmatched in any other interactive book. When you combine that with a classic Berenstain Bears children's book you have a complete winner. This is one of the best eBook apps available for young children, and there are few people of any age that would not enjoy it. Like Wanderful's other apps, Berenstain Bears Get Into a Fight offers great creativity with a wonderful sense of humanity and heart that transcends age. Multi-lingual families can enjoy the story in either Spanish or Portuguese, the latter of which is available via an in-app purchase.” - 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 Berenstain Bears Get In A Fight is an imaginative interactive reading experience with fully animated content featuring the popular Bear Family – Mama Bear, Papa Bear, Brother Bear, and Sister Bear. Wanderful brings every page of this Stan and Jan Berenstain story to life. Read and play along with Brother and Sister as a little morning grumpiness turns into an all-day fight. Even a noisy storm can’t stop them from arguing and fighting. Do they even remember why they are fighting? Can anything make them stop? Useful for children of all ages, this story teaches lessons on avoiding arguments and disagreements. KEY FEATURES: • Story is in both English and Spanish - change language from any page • Portuguese story content unlocks with in-app upgrade • Each page is fully animated, including two pages with extended multi-scene animations • 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 “Buzzy” the bee? • Move between pages with swipe or with scrolling page navigation • Two modes: “Read to Me” and the fully interactive “Let Me Play” • All words are "active" for extended word play and language learning – click on any word to hear it • 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's Classroom Activities and a free 11 page preview of the Get In A Fight Classroom Activities guide • The full 57 page 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 Get In A Fight provides your family, children and students with hours of delightful story play. The Berenstain Bears Get In A Fight 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. 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
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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.