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.
App Overview
Lake Superior Live Cams
Discover Minnesota's North Shore Like Never Before!
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
8 ratings · Top 5%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Lake Superior Live Cams: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Enhance with more locations and premium features.
Assumption to check: Limited camera feeds compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Add features for user interaction and feedback.
Assumption to check: Lack of user engagement options like comments
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline access for favorite cameras.
Assumption to check: No offline capability for saved cameras
Validate with people who use this workflow before building.
Hypothesis 4
Offer a free trial or demo version to attract more users.
Assumption to check: Monetization may deter users at initial download
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Discover Minnesota's North Shore Like Never Before! Experience the breathtaking beauty of Lake Superior's North Shore with 17 real-time live camera feeds, current weather, and NOAA lake temperature data - all in one app. Whether you're planning your next adventure, watching ships come into the Duluth harbor, or just missing the big lake, this app is your window to the shore. WHAT'S INSIDE 17 Live Camera Feeds Watch live streams from Duluth to Grand Marais: the Aerial Lift Bridge and Canal Park, the Duluth Ship Canal lighthouses, Bayfront Park, Park Point Beach surf, Glensheen Mansion's shoreline, Spirit Mountain, Split Rock Lighthouse, Two Harbors' ore docks, Silver Bay Marina, and the Grand Marais harbor. Lake Superior Water Temperature - NEW See the current water temperature at each camera location, powered by NOAA's satellite-based Great Lakes analysis. Temperature History Charts - NEW Explore how the lake warms and cools through the seasons. View 30-day, 90-day, or full-year charts for Duluth, Two Harbors, Silver Bay, and Grand Marais - and drag your finger along the line to see the reading for any day. Real-Time Weather Current conditions and air temperature at every camera location, so you can plan hikes, ski days, and shore trips with confidence. Ship Watching Multiple harbor angles in Duluth and Two Harbors make it easy to catch freighters arriving and departing. Why You'll Love It: Whether you're a visitor planning your next trip, a surfer checking the Park Point waves, a ship watcher, or someone who simply loves the North Shore, this app keeps you connected to Minnesota's most scenic destination. Download today and keep Lake Superior in your pocket - anytime, anywhere!
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Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Navigation
Expo AV
Axios
Zustand
React Native
Shadcn/UI
BUILD KIT DIFFICULTY
Intermediate
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.
