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.
Tour the Most Interesting Citywide
$19.99 · 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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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 Washington DC – Driving Tour: map the core Travel 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 number of tours available
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Audio playback issues
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface is outdated
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of personalization 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.
Tour the Most Interesting Citywide Locations of Washington DC in Your Own Car. This App Uses the SelfTour GPS "Location Aware" U-Drive App with Entertaining Narrations and Spoken Directions. An Ideal Family Experience. Now Updated and Improved! Hundreds have used this App to see the most famous sights citywide as you sit in the comfort of your car’s air-conditioning with a bag of snacks and cooler of beverages. - You’ll drive to over 150 key places like… Arlington Cemetery, Capitol Hill, Jefferson Memorial, National Cathedral, Embassy Row, the houses of John F. Kennedy, the Clintons and the Vice President, Georgetown, Ford’s Theater, Watergate, White House, the C&O Canal and the many memorials and museums along the National Mall… learning about each as you go. - For the younger family members in the backseat… this tour includes such fun places as the Volta Laboratory where Alexander Graham Bell invented the telephone, and record player, they can search for the image of Darth Vadar at the National Cathedral, see the deathbed of Abraham Lincoln, go under the giant Chinese Dragon Arch and see the Hall that looks like something right out of "Harry Potter." - Forget those expensive bus tours. Everyone in the car enjoys this tour for one App download… which is less than the price of a pizza! A Delightful Experience! Connect your smartphone or pad to your car’s audio system for the full effect. The descriptions are performed by talented voice actors in an entertaining style, underscored with dramatic music and enhanced with photos. The descriptions have been thoroughly researched providing accurate information about the history and importance of each location. It’s easy to use! The SelfTour™ GPS system automatically triggers the audio descriptions and turn-by-turn voice directions at the appropriate spots as you drive. The route is displayed on the phone, along with pictures of each site. It is recommended another in the car uses this to assist the driver along the way and to visually identify the correct building, attraction or site. You’re in control! The easy-to-use exclusive SelfTour™ system ensures an enjoyable full-circle driving tour on your own schedule, at your own pace. No waiting for others! You can start the tour at any of its locations, stop anywhere along the way and continue again. And it is a complete circle tour so you end up where you started. The GPS always shows you where you are keeping you from getting lost. There are no advertisements and an Internet connection is not needed. Just download the App and go! All this makes your personal driving tour an enjoyable adventure.” No bus tour gives you this same experience. If there’s a tour worth taking, it’s worth taking a SelfTour! Also check out the SelfTour™ Washington walking tour experience.
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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.