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.
Stop guessing your tax residency
Free · 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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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.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Domicile365 Residency Tracker: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Stop guessing your tax residency. Start proving it. As featured in leading publications, Domicile365 is the trusted residency and day count tracking app for high-net-worth individuals, multi-state residents, digital nomads, globally mobile professionals and enterprises managing complex tax, statutory residency, and domicile determinations. Perfect for tracking multi-state travel, proving a change of domicile, and protecting against aggressive city, state, federal or international tax audits. Core Features • Automatic day count tracking by Country, State, City (including New York City), Province, and Territory • Unlimited day count alerts by jurisdiction — email and push notifications as you approach key thresholds • Download CSV logs and cryptographically-signed PDF audit logs — independently verifiable by auditors, CPAs, or advisors on Domicile365.com to confirm location records haven't been altered or tampered with • Advisor Portal — invite your CPA or financial adviser for read-only access to your location data • Manual entry for dates before you activated the app • On-device AI to search and analyze your location history by date • 60-day free trial — no credit card required Location generally recorded throughout the day using the highest level of accuracy supported by your phone (consistent with efficient battery usage). Location is determined using a combination of GPS, Bluetooth, Wi-Fi hotspots and cell tower locations and then recorded. Please note that the continuous tracking may have a minor impact on battery life and data usage since location is continuously recorded and saved in the cloud. The App's applicable location algorithms are designed to minimize battery use. Separate tools to check (a) Schengen Region status, (b) U.S. substantial presence test, (c) rolling 183 out of 365 day check, (d) Puerto Rico day count testing and (e) U.K. statutory residency test using the U.K. April 6 through April 5 tax year. Tools also provided to check location day counts considering only overnight stays or 24 hour periods (for UK, Monaco, Maryland, New Mexico, and other similar jurisdictions). Audit Defense Tax jurisdictions are increasingly aggressive in asserting residency — subpoenaing phone records, cell tower data, credit card logs and other items. The burden of proof is on you. Domicile365 generates a cryptographically-signed, contemporaneous record of your physical presence — and now lets you produce a signed PDF that auditors, courts, or opposing counsel can independently verify on Domicile365.com, confirming that your location logs are authentic and have not been altered after the fact. – Sixty (60) day free trial provided. At the end of the sixty (60) day free trial period, you will be given the opportunity to subscribe to the Domicile365 monthly subscription to continue using the features of the app, which include daily tracking of your location, setting location alerts and access to tracking logs to establish your precise recorded locations. • Payment will be charged to Apple Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. • Subscriptions may be managed and auto-renewal may be turned off by going to the user's Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to the App, where applicable. Enterprise features are available. Track employee day counts for employer-employee income tax withholding. States impose employer income tax withholding based on days worked in-state. NYC Unincorporated Business Tax analysis, San Francisco Gross Receipts tax analysis, state heatmaps. Terms: domicile365.com/Legal.html Privacy: domicile365.com/Privacy_Policy.html
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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 document upload options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Manual entry for residency details
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No reminder notifications for upcoming tasks
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription model unclear
Validate with people who use this workflow before building.
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.