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
Export Calendar - CSV & ICS
Need a fast, reliable way to export your iPhone calendar?
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
4 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 included16 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 Export Calendar - CSV & ICS: map the core Utilities 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
Provide more options like JSON or XML.
Assumption to check: Limited export formats available
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to filter events by categories.
Assumption to check: No ability to customize event selection
Validate with people who use this workflow before building.
Hypothesis 3
Optimize the export process for better performance.
Assumption to check: Exporting large calendars can be slow
Validate with people who use this workflow before building.
Hypothesis 4
Implement cloud backup for exported files.
Assumption to check: No backup options for exported files
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
Need a fast, reliable way to export your iPhone calendar? Export Calendar – CSV & ICS lets you save, back up, or share your events in the most widely supported formats — in seconds. Export your entire calendar or choose specific calendars, then download events as: • CSV — perfect for Excel, Google Sheets, and data analysis • ICS — ideal for Outlook, Google Calendar, and cross-platform sharing Features: • Export events to CSV or ICS • Select specific calendars or export everything • Clean formatting for spreadsheets and calendar apps • Works with iCloud, Google, Outlook, Exchange, and more • 100% on-device processing — your data stays private Whether you're migrating platforms, backing up your schedule, or analyzing your time, Export Calendar delivers a clean file instantly — no subscriptions, no accounts, no cloud uploads.
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
@react-native-async-storage/async-storage
expo-file-system
expo-date-picker
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.
