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.
Days Anchor is a widget-first countdown app
$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.
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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 Days Anchor - Countdown Events: 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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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: Limited customization options for countdown events
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No sharing functionality
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user engagement features
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.
Days Anchor is a widget-first countdown app. Four widget styles, two sizes, one idea: put the dates that matter right on your Home Screen. Pick Ring, Dot Grid, Bar, or Text — then watch the days tick by without opening the app. WIDGET-FIRST, ALWAYS • Four widget styles: Ring, Dot Grid, Bar, Text • Small and medium sizes for every style • Sub-styles you can cycle in the editor: circular or square dots, straight or curved bars • The in-app grid renders the same widgets you'd pin to your Home Screen — what you see is what you get COUNT DOWN OR COUNT UP • Days until a trip, a wedding, an exam, a launch • Days since a birthday, an anniversary, a quit date • Every widget flips automatically the moment the date passes RECURRING EVENTS • Weekly, monthly, or yearly repeats • Leap-day anchors (Feb 29) clamp correctly • Widgets always show the next occurrence, never a stale past date • Optional reminders fire on the next occurrence and reschedule themselves LUNAR CALENDAR • Mark any yearly event as 农历 (Chinese lunar) • Lunar New Year, Mid-Autumn, lunar birthdays — all recur by lunar month and day, not by Gregorian date • Native lunar date picker in the editor when enabled in Settings TAGS AND NOTES • Attach tags to any event from a shared vocabulary — type a tag once, reuse it forever • Rename a tag in one place; every event updates everywhere • Free-form notes for the context that doesn't fit in the event name ICLOUD SYNC, ZERO SETUP • Events, tags, and notes sync across iPhone and iPad via iCloud • A sync banner tells you when a change is still in flight • Account-swap detection keeps other Apple IDs' data off your devices • Everything works offline; changes reconcile when you're back online DESIGNED FOR iOS • Per-event color picker drawn from a curated palette • App icon adapts to iOS 18 Light, Dark, and Tinted appearances • Native SwiftUI throughout • No ads. No tracking. No account required. Days Anchor is a quietly focused little tool — nothing you don't need, everything you do. Pick a date. Pick a widget. Put it on your Home Screen. Let the countdown do its work.
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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.