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
CARROT To-Do
CARROT doesn’t just make getting things done fun – she makes getting things done addictive
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
1,053 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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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/
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 CARROT To-Do: map the core Productivity 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
Allow users to customize task appearance with colors and icons.
Assumption to check: Limited customization options for tasks
Validate with people who use this workflow before building.
Hypothesis 2
Implement better categorization and filtering options.
Assumption to check: Tasks can get lost in a cluttered interface
Validate with people who use this workflow before building.
Hypothesis 3
Introduce a more intuitive recurring task feature.
Assumption to check: Difficulty in tracking recurring tasks
Validate with people who use this workflow before building.
Hypothesis 4
Add sync options with Google Calendar and other services.
Assumption to check: Limited integration with external calendars
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
CARROT doesn’t just make getting things done fun – she makes getting things done addictive. ** Featured by Apple, Jeopardy, Wall Street Journal, NPR, Fast Company, & more! ** "CARROT is adorable. I have a huge grin on my face from using her." - Louie Mantia, Pacific Helm "CARROT breathes new life into to-do lists." - Lewis Painter, The Strand "If you want an extra kick in the [pants] from a sadistic robot, you'll want to give CARROT a shot." - Adam Dachis, LifeHacker "01000001 00101011 00101011 00101011" - Deep Blue, Supercomputer Users, critics, and supercomputers the world over have fallen in love with CARROT and her twisted personality. What are you waiting for, an engraved invitation? Download CARROT now! --------------------- Meet CARROT, the world's first to-do list with a personality. You keep this sadistic AI construct happy by getting things done in real life. She'll reward you. But be careful! Slackers make CARROT upset. You do NOT want to make CARROT upset. • Amazingly simple to-do list that's also a virtual pet • Unlockable app upgrades, from reminders to mini-games to an actual kitten • Thirty-six dastardly challenges to complete • Over 500 unique rewards that vary depending on CARROT's mood • The first four chapters in an epic, branching story • Cheat codes, customization options, and kitten costumes available via in-app purchase Don't make CARROT angry. Download her now! --- Have feedback? CARROT would love to hear from you! [email protected] http://twitter.com/CARROT_app http://facebook.com/CARROTapp
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.
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BUILD KIT DIFFICULTY
Starter
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.
