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
Paperless Post: Invitations
Get everyone together with our online invitation maker and event management platform
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
124,745 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.
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Add to a Remix
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/
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 Paperless Post: Invitations: 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
Offer more high-quality free designs to attract users.
Assumption to check: Limited free designs compared to paid options
Validate with people who use this workflow before building.
Hypothesis 2
Simplify guest management with better UI/UX.
Assumption to check: Complexity in managing guest lists
Validate with people who use this workflow before building.
Hypothesis 3
Provide more intuitive customization tools.
Assumption to check: Difficulty in customizing designs
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a freemium model with more features at lower tiers.
Assumption to check: Subscription model can deter users
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
Get everyone together with our online invitation maker and event management platform. Choose between classic stationery-inspired Cards or textable event page Flyer invites, customize everything in minutes, send your way (email, text, or Shareable Link), and track RSVPs all in the app. No ads, ever! **Featured as Apple App of the Day and in Vogue, The New York Times, and Fast Company** - Browse thousands of best-in-class invitations and greeting cards, or upload your own - Customize with fonts, colors, images, GIFs, stickers, envelopes and liners, stamps, and backdrops - Add event details without cluttering your invitation using informational Blocks - Collect helpful information with Guest Questions and Surveys - Connect your contacts list to add recipients in seconds - Send via messaging apps and social media with shareable invitation links - Manage your guest list with Guest Tags and send updates directly - Seamlessly check guests into your event on-site ONLINE INVITATION TEMPLATES FOR ANY OCCASION • Baby Shower Invitations • Casual Birthday Invites • Kids’ Birthday Invitations • Bridal Shower Invitations • Wedding Invitations • Bachelorette Invitations • 1st Birthday Invitations • Cookout Invitations • Pool Party Invitations • Wedding Shower Invitations • Anniversary Party Invitations • Company Party Invitations • Graduation Invitations • Christmas Party Invitations • Professional Event invitations • Bar & Bat Mitzvah Invitations • Save the Dates • Milestone Birthday Invitations Loving the app? Leave a five-star review! Questions? Contact us at [email protected]. We look forward to helping you.
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/native
@supabase/supabase-js
Zustand
react-native-paper
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.
