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 Until: Countdown
$1.99 · 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.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Days Until: Countdown: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
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 recurring countdowns feature.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Basic notification settings.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No collaborative 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 Until: Countdown If you're anything like me, you may have tried to keep everything in your brain, at once. I created Days Until: Countdown because I wanted a tool where I can practice intentionality (e.g., pausing and inputting the dates that were important). View this app as a relationship with intentionality, to pause, breathe, and track the things important to you. It's helpful to see your countdowns in one clean vertical list. Built for everyday life and professional work: lawyers tracking filing dates, legal assistants watching response deadlines, office managers keeping team dates visible, students watching exams, and anyone who wants important dates out of their head and in one clear place. Use Days Until for: Legal and filing deadlines Bills, rent, and renewal dates School assignments and exams Office deadlines and follow-ups Trips and travel dates Birthdays and anniversaries Job applications Project milestones Appointments Anything coming up Why people choose Days Until: All upcoming dates in one clean vertical list Date-only or timed deadlines Color-code related countdowns Add notes for context Reorder your list manually Mark complete, restore, or duplicate in a tap Delete safely with confirmation No account required Your countdowns stay on your device Simple on purpose. No calendar clutter. No task-manager sprawl. No dashboard noise. No subscription. Just the dates that matter, with the time remaining easy to see. Terms: https://myworkingmemory.ai/countdowns-terms.html Privacy: https://myworkingmemory.ai/countdowns-privacy.html
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.