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.
KORNERS is the errand routing app that thinks for you — now with full CarPlay support.
$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 KORNERS APP: map the core Navigation 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: Users may find it difficult to discover nearby locations without effective search functionality.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Navigation apps can be cluttered and overwhelming.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Real-time traffic updates may be inaccurate or missing.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Offline maps are often limited or non-existent.
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.
KORNERS is the errand routing app that thinks for you — now with full CarPlay support. Add your stops by voice, text, or from your contacts — then let KORNERS figure out the smartest order to hit them all. It uses real-time GPS, live traffic data, and AI to build your optimized route and guide you through every stop. And now, everything you need is right on your CarPlay screen. CARPLAY — HANDS-FREE ERRAND MANAGEMENT Your active run appears on your car's display the moment you connect. See your full stop list, current destination, ETAs, and drive times without touching your phone. Mark stops complete, skip a stop, or launch navigation — all from your steering wheel or CarPlay screen. When you arrive, an alert appears automatically so you can advance to the next stop without looking at your phone. ADD ERRANDS YOUR WAY Speak your errands naturally: "I need to go to Costco in Burbank, Trader Joe's in West Hills, and pick up my dry cleaning." KORNERS extracts them instantly. Or add from your contacts, use a template for your regular runs, or get AI suggestions based on your history. SMART ROUTE BUILDING KORNERS uses GPS-locked starting location, nearest-neighbor route optimization, and MapKit directions to sequence your stops for minimum drive time and fuel cost. Fixed appointments are anchored in place — everything else arranges around them. Location hints like "Costco in Burbank" resolve to the exact right location every time. KEEP MY ORDER Want to go in your own sequence? Toggle Keep My Order on the Run screen. KORNERS respects your order, recalculates ETAs, and updates navigation instantly. NAVIGATE SEAMLESSLY Choose Apple Maps, Google Maps, or Waze. KORNERS hands off each stop automatically and monitors your progress. GPS geofencing detects when you arrive — no manual check-ins needed. REAL-TIME AWARENESS Running behind? Get notified if traffic pushes your ETA by 10+ minutes. Business hours alerts warn you if a bank, DMV, or doctor's office may be closed at your ETA. Auto-reroute recalculates your remaining stops every 5 minutes based on live traffic. FUEL COST TRACKING See the estimated fuel cost for your entire run. Gas prices auto-update from AAA by your state — Regular, Mid-Grade, and Premium. Vehicle MPG is looked up automatically using EPA data. HOME & WORK Save your home and work addresses. Say "go home" or "head to work" and KORNERS adds the right stop instantly. FAVOURITES Star your most-used stops — they appear as quick-add pills on the home screen for one-tap adding. SAVED & HISTORY Every completed run is saved automatically. Review your history, re-run past routes, and build favourites from places you visit regularly. VOICE CONFIRMATION After adding errands by voice, KORNERS reads them back so you can confirm without taking your eyes off the road. Choose your preferred voice in Settings. KORNERS is built for people who run real errands — not hypothetical ones. It's fast, it's smart, and it works on your phone and in your car.
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.