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
Birthday Vault: Reflect & Plan
Have you ever wished you could have a conversation with yourself from a year ago? Birthday Vault makes this possible
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
24 ratings · Top 5%
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.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included17 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.
JavaScript is required to complete mailbox verification.
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 Birthday Vault: Reflect & Plan: map the core Lifestyle workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 reminder times and types (e.g., SMS, email).
Assumption to check: Limited customization options for birthday reminders
Validate with people who use this workflow before building.
Hypothesis 2
Enable users to share birthdays and reflections on social media.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Provide insights on birthday trends and reminders in the app.
Assumption to check: Lack of analytics on birthday trends
Validate with people who use this workflow before building.
Hypothesis 4
Integrate with user calendars for automatic birthday reminders.
Assumption to check: No connection with calendar apps
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
Have you ever wished you could have a conversation with yourself from a year ago? Birthday Vault makes this possible. Each year on your birthday, you'll unlock a message written by you, to you, exactly one year earlier. It's not just a countdown app, it's a time capsule for your thoughts, dreams, and personal growth. The first time you open your vault on your birthday, you'll experience something truly meaningful: words from your past self, capturing moments and memories that might have faded, reminding you of goals you set, and showing you just how much can change in a year. How Birthday Vault Works: 1. Enter your birthday to start your personal journey 2. Write thoughtful reflections and set meaningful goals with the help of birthday vaults guided journaling process 3. Your messages are lock securely until your next birthday 4. Watch the countdown widget build anticipation daily 5. On your birthday, unlock your time capsule of memories 6. Reflect on your growth and create a new journal entry 7. Continue building your collection of birthday wishes year after year The elegant countdown widget displays on your home screen, building anticipation as you count down to your next birthday. Unlike famous birthdays or standard birthday reminders, this celebration becomes deeply personal, a day to reflect on your growth and set intentions for the year ahead. What were your biggest dreams last year? Which goals did you accomplish? Birthday Vault helps you track your journey through life's most meaningful milestones. Each birthday becomes an opportunity to celebrate not just another year, but your evolution as a person. Your birthday wishes from the past become powerful reminders of where you've been. Your capsule of memories grows richer with each passing year, creating a treasure that becomes more valuable with time. Don't let another birthday pass without capturing these precious thoughts. Download Birthday Vault today and transform your birthday into a profound tradition that connects your past, present, and future in one beautiful experience.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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/native
@react-native-async-storage/async-storage
react-native-paper
expo-notifications
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.
