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
Parchment: Agenda & Daily Note
Parchment is a private daily journal that brings your writing, plans, calendar, and reminders together in one quiet place
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
249 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.
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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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included19 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 Parchment: Agenda & Daily Note: 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 templates or formats for tasks and notes.
Assumption to check: Limited customization for tasks and notes
Validate with people who use this workflow before building.
Hypothesis 2
Introduce shared tasks or notes for team collaboration.
Assumption to check: Lack of collaboration features
Validate with people who use this workflow before building.
Hypothesis 3
Integrate with Google Calendar or Apple Calendar for better scheduling.
Assumption to check: No integration with other calendar apps
Validate with people who use this workflow before building.
Hypothesis 4
Enhance search with advanced filters and tags.
Assumption to check: Basic search functionality
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
Parchment is a private daily journal that brings your writing, plans, calendar, and reminders together in one quiet place. It uses Apple's Reminders and the system calendar to bring your task and events together. Open today and start writing immediately. Your calendar events and due or overdue reminders can appear above your journal entry, giving you the context of the day without switching apps. Capture notes, reflect on what happened, plan what comes next, or use Parchment as a simple daybook for work and life. On iPad, Parchment also supports handwriting and drawing with Apple Pencil, so typed notes and handwritten thoughts can live together on the same day. Parchment is built for iPhone, iPad, and Mac, with iCloud sync available through your private iCloud account. There is no Parchment account to create, no advertising, and no third-party analytics SDKs. Features include: - Daily journal entries organized by date - Calendar events shown alongside your writing - Due and overdue reminders in your daily view - Reminder completion from inside the app - Apple Pencil handwriting and drawing on iPad - iCloud sync across iPhone, iPad, and Mac - Widgets for a quick look at your agenda - Shortcuts, Siri, and App Intents support - Spotlight indexing for finding past entries - Export tools for keeping a copy of your writing - Custom appearance, fonts, and themes Parchment is for people who want a journal that understands the shape of their day. It gives you one place to write what happened, see what is coming up, and keep a private record over time.
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
TypeScript
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.
