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.
App Overview
Jack and the Beanstalk Interactive Storybook
Made for iPad! And works beautifully on the iPod Touch and iPhone devices too.
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
9 ratings · Top 15%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Jack and the Beanstalk Interactive Storybook: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Enhance user engagement with more interactive elements and animations.
Assumption to check: Limited interactivity in some story pages
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the purchasing flow with clearer prompts and transparency.
Assumption to check: In-app purchase process can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Expand story library to include more diverse titles and themes.
Assumption to check: Lack of diverse stories
Validate with people who use this workflow before building.
Hypothesis 4
Improve navigation layout for a cleaner, more user-friendly experience.
Assumption to check: Navigation can feel cluttered
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Made for iPad! And works beautifully on the iPod Touch and iPhone devices too. The "interactive" part comes in the form of games, activities, hidden Easter eggs, and the like. Gorgeous artwork, read-along text, and a reasonable price tag...What's not to like? -CNET Reviews The classic "Jack and the Beanstalk" gets a terrific iPad makeover. -CNET Reviews I was really impressed with Jack and the Beanstalk Children’s Interactive Storybook. It takes full advantage of the iPad’s size and looks great. The addition of the hidden activities within the story make it a fun app that my son really enjoyed -The iPhone Mom Experience Jack and the Beanstalk like never before in this wonderfully illustrated storybook, featuring over 30 pages of interactivity which your child will enjoy. This timeless tale comes alive with audio narration, read-along text, and interactive games and features. Each page contains a hidden surprise! Come and dive into the pages of Jack and the Beanstalk and join Jack in his adventure to defeat the giant! SPOILER WARNING - Don't read this next section if you want to discover all the great surprises in this app on your own! All 32 pages are interactive, but here are some highlights you won't want to miss. Page 1 Tilt the application to watch the sun move. Move the sun with your finger below the mountains and observe day turn to night. Touch the house to watch and hear the chimney puff. Page 6 Touch the beans to play the memory matching game. Page 13 Magically finger-paint the black -and-white page. When most of the image has been painted, stars will burst with enchanting sounds, and reveal an amazingly vivid image. When the page is in color, touch the lake to play a popup game. Shake the device to either finish the painting or to restart painting again. Page 14 Touch Jack to get him to sing. It may take a few times...he's shy! Page 29 The Giant is high on the beanstalk. Tilt the device and watch the Giant sway. The Giant will complain when you shake the device - he's afraid of heights.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
React Navigation
Zustand
React Native Reanimated
Expo AV
BUILD KIT DIFFICULTY
Intermediate
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.
