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
Countdown to My Retirement
Countdown to My Retirement!
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
1 ratings · Below Average
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 included15 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 Countdown to My Retirement: map the core Lifestyle 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
Add more customizable countdown themes and reminder settings.
Assumption to check: Limited features and customization options.
Validate with people who use this workflow before building.
Hypothesis 2
Focus on rigorous testing before release.
Assumption to check: Poor user reviews indicating bugs.
Validate with people who use this workflow before building.
Hypothesis 3
Implement easy sharing options for users to share their countdown.
Assumption to check: No social sharing options.
Validate with people who use this workflow before building.
Hypothesis 4
Include a library of motivational quotes users can select from.
Assumption to check: Lack of motivational content.
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
Countdown to My Retirement! Plan for the future and count down to your retirement with ease! Getting started is simple: • Enter your Name, Age, and Retirement Date • Tap Save to start your personal countdown timer • The timer keeps running even if you close the app. Make it personal: Tap Select Photo to add your favorite image • Tap Save to keep it Never miss the moment: • Allow notifications in your device settings • Get alerted right when your retirement begins • Tap the notification to open the app and celebrate! Track other important events: • Use the Any Event tab to add countdowns for weddings, vacations, birthdays, and more Easy management: • After an event passes, tap Clear and Save to reset • Add new events anytime and stay organized Enjoy using Countdown to My Retirement! If you love it, please leave a review in the App Store and help others find this handy app.
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
Zustand
react-navigation
@react-native-community/datetimepicker
expo-sharing
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.
