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.
Venture into the hottest place on Earth with this self-guided driving tour
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 Death Valley NP Audio Guide: 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 offline access to audio guides
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult to find specific trails or audio guides
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No user-generated content or reviews
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No interactive elements in the map section
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.
Venture into the hottest place on Earth with this self-guided driving tour. Explore Death Valley’s wildly diverse geographic beauty, its complex mining history, and live to tell the tale. Death Valley National Park Death Valley is truly a place like no other. Sure, it holds the record for the hottest place on the planet, but it’s also full of wildly varied geography, from mountains to salt flats to rolling, colorful badlands, and everything in between. This raw, inhospitable landscape is an absolute wonder to behold, and now you can brave its extremes from the comfort of your own vehicle! Look across the valley from 5,000 feet up at Dante’s View, then drive down to the lowest point in North America—Badwater Basin. Stroll across blinding salt flats and marvel at the intricate crystal formations of Devils Golf Course. Cruise or hike through the bizarre rocky badlands which George Lucas used in the original Star Wars trilogy. There’s never a dull moment in Death Valley. Along the way, you’ll dig deep into the harrowing history of Death Valley’s miners. Hear stories of their backbreaking labor, ingenuity, and the mining bust that paved the way for Death Valley to become a national park. Featuring riveting stories, an engaging narrator, and easy automatic audio, this app puts exploration in the palm of your hand! Experience this and more in Death Valley: ■ Death Valley Junction ■ The Timbisha Shoshone ■ Gold! ■ The Death Valley 49ers ■ Lost in Death Valley ■ Why So Dry? ■ Why So Hot? ■ Borax Mining ■ Dante’s View ■ Superblooms ■ Twenty Mule Team Canyon ■ White Gold ■ Zabriskie Point ■ A Thirsty Oasis ■ Furnace Creek Visitor Center ■ Collision and Separation ■ Golden Canyon Trail ■ Booms and Busts ■ Ghost Towns ■ Mars Hill ■ Artist’s Drive ■ Building Death Valley ■ Devils Golf Course ■ Natural Bridge Trail ■ Badwater Basin HOW IT WORKS: As you travel, audio stories play automatically based on your location. Simply go to the starting point of the tour and begin following the given route. Each story begins playing on its own, usually just before you reach a point of interest. TOUR FEATURES: ▶ Freedom of travel No scheduled tour times, no crowded buses, and no rush to keep moving past stops that interest you. You have total freedom to skip ahead, linger, and take as many photos as you’d like. ▶ Automatic play No muss, no fuss. Just follow the app’s built-in route to all the must-visit spots — the audio stories about everything you see will play automatically! ▶ Works offline Download the tour in advance and then use it seamlessly, even in areas with no service! ▶ Lifetime purchase No monthly subscription. No time limits. No usage limits. Enjoy this tour as many times as you like. ▶ Incredible stories Immerse yourself in the history, culture, and secrets of this famous site with the help of a top-tier narrator and fascinating stories written by experts. ▶ Award-winning app Featured on Thrillist and WBZ, this easy-to-use app won the Laurel Award for Technology from the Newport Mansions, who use the app for over a million tours per year. FREE DEMO: Check out the totally free demo to get an idea of what this tour is all about. If you like it, purchase the tour to access all the stories. IMPORTANT NOTES: Download the tour ahead of time over data or WiFi for full offline use. Be sure your phone battery is fully charged or take an external battery pack. Continued use of the GPS can drain your battery. Allow the tour to access location services and GPS tracking features to play stories automatically during the tour. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ NEARBY TOURS: Hollywood Homes: Ever wanted to see where your favorite celeb lives? Cruise down sun-soaked streets in glamorous LA and stop by the sprawling mansions owned by millionaires, movie stars, and musicians like Jay-Z and Beyonce!
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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.