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.
Meet your personal tour guide in an app! Shaka Guide has 90+ audio tours across the country in places like Hawaii, Yellowstone National Park, Grand Teton, Yosemite, Sedona, Gettysburg, Salem, the Boston Freedom Trail,...
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 Shaka Guide | GPS Audio Tours: 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: Users may find it difficult to navigate between tours if there are many options.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Audio playback may not sync well with the user's location.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited user engagement features like social sharing or community feedback.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchase processes can be confusing.
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.
Meet your personal tour guide in an app! Shaka Guide has 90+ audio tours across the country in places like Hawaii, Yellowstone National Park, Grand Teton, Yosemite, Sedona, Gettysburg, Salem, the Boston Freedom Trail, Utah's Mighty 5 and more. HOW A GPS AUDIO TOUR WORKS The app uses GPS to play audio narration automatically as you drive or walk. Shaka Guide’s audio tours provide directions to must-see stops, stories about the places you’re visiting, travel tips, and local music. It's like having a personal tour guide along for the ride! TOUR ON YOUR TERMS Upgrade your road trip on a GPS audio tour! With Shaka Guide, you’ll get the insights of a tour guide with the freedom to explore on your terms. Shaka Guide has planned the itinerary, picked the must-see stops, and has hours of stories to share. But, with Shaka Guide what you see and do is up to you – pick the stops you want and skip the ones you don’t. AUDIO TOUR GUIDE + OFFLINE MAP So, what exactly is a GPS audio tour? Imagine you combined a travel guide, sightseeing app, and audio guide all in one - that’s a GPS audio tour! The app uses GPS to give you directions to popular sites with stories, music and travel tips (like bathroom and food stops) as you guide along on your travels. And, with a reliable offline map, the app still works when there’s no service. NEW YELLOWSTONE TOUR GUIDE Check out the NEW Yellowstone GPS audio Tour. Spend 1-7 days in Yellowstone National Park with your very own personal guide. The Yellowstone Tour has starting points at all of the park's entrances - just pick a section of the park, turn the app on, and explore. The Yellowstone Tour also works in multiple directions! The timing is perfect with detailed history lessons as you travel through Yellowstone National Park. Don't visit Yellowstone National Park without Shaka Guide's Yellowstone National Park GPS audio Tour! HAWAII AUDIO TOUR GUIDE Shaka Guide has the #1-rated travel apps for Maui, Oahu, Kauai, and Big Island. Stay just ahead of your Hawaii trip planning and visit spots like the Road to Hana on Maui, Oahu's Grand Circle Island, Volcanoes National Park on the Big Island, or Waimea Canyon in Kauai with a Shaka Guide GPS audio tour by your side! MAUI AUDIO TOUR GUIDE Shaka Guide is the highest-rated tour app in Maui and the Road to Hana. Explore Maui with 6 GPS audio Tours including Maui's most beloved road trip - the Classic Road to Hana. Other Maui Tours include Reverse Road to Hana, Loop Road to Hana, West Maui Coastline, and Sunrise and Sunset at Haleakala. NATIONAL PARK AUDIO TOUR GUIDE Visit America's top national parks with a GPS tour guide! Guide along on tours including Yellowstone National Park, Yosemite, Grand Teton, Hawaii Volcanoes, Shenandoah, Utah's Mighty 5, and more! Bundle + Save - Get the Yellowstone National Park + Grand Teton Audio Tour Bundle for $23.99 AMERICA'S FAVORITE ROAD TRIPS - AUDIO TOUR GUIDE The ultimate audio tour guide for scenic drives like the Road to Hana in Maui, Sedona, Lake Tahoe, and more! Also, check out day trips in Tuscon and Las Vegas. You'll seamlessly guide along these scenic road trips without missing any of the action. A tour guide by your side – it's that simple. TOURS: Classic Road to Hana Reverse Road to Hana Loop Road to Hana West Maui Sunrise at Haleakala National Park Sunset at Haleakala Oahu Grand Circle Island Legendary North Shore Loop East Oahu Honolulu Waikiki Downtown Honolulu Waimea and Na Pali Poipu and Koloa Wailua Valley North Shore Kauai North Island Jungle Adventure Loop South Island Epic Coastal Journey Kona Hawaii Volcanoes Kohala Coast Yellowstone National Park Grand Teton Rocky Mountain Arches Bryce Canyon Capitol Reef Canyonlands Zion La Sal Goblin Byway 12 Route 89 Saguaro Petrified Sedona Grand Canyon Mt. Lemmon Horseshoe Bend & Page Lake Tahoe Yosemite Death Valley Joshua Tree Hoover Dam & Lake Mead Red Rock Canyon Blue Ridge Parkway Shenandoah
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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.