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
Don't Let Pigeon Run This App!
Three-time Caldecott Honoree Mo Willems brings the Pigeon to the digital screen with this original, feature-rich, animated app.
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.1
757 ratings · Top 30%
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.
Build your own version
Build Kit
Make this idea yours
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 included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Don't Let Pigeon Run This App!: 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
Offer more diverse and engaging interactive activities.
Assumption to check: Limited interactivity options compared to other activity apps.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a freemium model with additional paid activities.
Assumption to check: High price point for a children's app.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to create and share their own activities.
Assumption to check: Lack of user-generated content.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance accessibility options for children with disabilities.
Assumption to check: Limited accessibility features.
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
Three-time Caldecott Honoree Mo Willems brings the Pigeon to the digital screen with this original, feature-rich, animated app. “Don’t Let the Pigeon Run This App!” lets you create your own Pigeon stories with your pal, Mo Willems. Just follow as the Bus Driver asks you for your ideas—then shake the Pigeon. Your story is ready! Sit back and enjoy the show. Once you’re finished, try it again…and again. You can make as many silly stories as you want. This fully animated app includes hilarious shake-and-play technology, customized voice integration, and other exciting interactive features. Plus, you can draw the Pigeon with Mo! COOL FEATURES Starring appearance by the Pigeon, voiced by Mo Willems! Also starring YOU! Record your own voice as part of the story. Pigeon-drawing tutorial with Mo! Personalized vault for six of your favorite Big Pigeon stories! EVEN MORE COOL FEATURES! Three unique storytelling modes! Read-along option! Shake-and-tap interactivity! Pigeon-y sound effects and music! Note: If you have a second- or third-generation iPod Touch, be sure to use earphones with a built-in microphone (like the ones that came with your device) to enjoy all the great features of this app! Before you download this experience, please consider that this app contains advertising for The Walt Disney Family of Companies. https://disneyprivacycenter.com https://disneytermsofuse.com
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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
axios
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.
