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.
Every year has 365 days
$0.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
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.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Memento Mori: Widget: 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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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
Assumption to check: Users often find it hard to manage multiple reminders effectively.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization options for widget appearance.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No integration with calendar apps for syncing events.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of recurring reminders.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Every year has 365 days. Every month has roughly 30. Every week has 7. How many have you already spent? Memento Mori turns your remaining time into a simple, powerful visual — a grid of dots on your Home Screen and inside the app. White dots are what's still ahead. Dark dots are what's already gone. It's a quiet, daily reminder rooted in Stoic philosophy: remember that your time is finite, and use that awareness to live with more intention. WHAT YOU SEE • Year view — weeks of the year as dots • Month view — your current month, day by day • Week view — the week broken into 6-hour blocks • Day view — 24 hours, hour by hour • Swipe between all four views in the app, or glance at your Home Screen widget STOIC WISDOM, TWICE A DAY A quote from the great Stoic philosophers — Marcus Aurelius, Seneca, and Epictetus — appears in the app and on the large widget. The quote changes every 12 hours, drawn from a curated collection of 300 timeless reflections on time, mortality, virtue, and the art of living. "You could leave life right now. Let that determine what you do and say and think." — Marcus Aurelius DESIGNED TO BE GLANCED AT • Pure black background — blends seamlessly with your Lock Screen and Home Screen • Minimal, distraction-free design • Available in small, medium, and large widget sizes • Choose what to display: year, month, week, or day No accounts. No notifications. No tracking. Just a quiet visual reminder that today is the dot that matters. Memento Mori — remember you must die, so you remember to live.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.