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 Little Monster at School: 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 variety in stories
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: User interface is cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited interactivity
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 early readers featuring the beloved Little Monster • Based on the award winning titles originally published by Living Books Review: "This is a really cute and relatable story, with some great interactive features. Kids can really take part in the "lessons" at school with Little Monster. When they work with numbers and letters on the chalkboard, kids can tap on the numbers and letters to hear them labeled and practice right along with the class. The story actually covers a lot here - routines, school lessons, helping friends out, being different, etc. This is an award winning story for reason - it really is a good story!" - A Matter of App Have you ever wished you could play inside a story and really interact with all the characters and words? Now you can! Little Monster at School is an imaginative and interactive reading experience with fully animated content loved by children, parents and teachers alike. Wanderful brings every page of this timeless Mercer Mayer story to life. Read and play along with Little Monster on a fun-filled day at school as he explores different subjects with his classmates and makes friends with Yally, an often difficult fellow student. KEY FEATURES: • Includes both English and Spanish with dynamic switching between the languages • 18 animated pages, plus a special “story within the story” • Two pages of alphabet and counting lessons – say your lessons along with the class • Virtually every item on each page comes to life when tapped • A hidden animated surprise on each page – see if you can find the “zipperumpazoo” • 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 Little Monster at School Classroom Activities guide • The full 42 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 Little Monster at School provides your family, children and students with hours of story play. Little Monster at School is written and illustrated by Mercer Mayer, who has published over 300 books in a variety of illustrative styles. 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.