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
ClearDepth
ClearDepth is the water safety app built for boaters and lake-goers who want to know what's beneath the surface before they get there.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 5.0
33 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included19 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 ClearDepth: map the core Navigation 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
Add features for offline maps and route caching.
Assumption to check: Limited offline capabilities
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced filtering and categorization.
Assumption to check: Difficulty in finding specific types of locations
Validate with people who use this workflow before building.
Hypothesis 3
Improve TTS functionality for better clarity.
Assumption to check: Voice navigation may not always be clear
Validate with people who use this workflow before building.
Hypothesis 4
Clarify benefits of in-app purchases with better onboarding.
Assumption to check: In-app purchase confusion
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
ClearDepth is the water safety app built for boaters and lake-goers who want to know what's beneath the surface before they get there. Whether you're anchoring in a cove, letting the kids jump in, or navigating unfamiliar water, ClearDepth shows you hazards reported by other boaters in real time: submerged rocks, shallow spots, blind turns, debris, and more. And because water levels change, ClearDepth automatically adjusts the severity of every hazard based on current conditions. A rock that's harmless at high water becomes a serious threat when levels drop. Features: Community-reported hazards on interactive lake maps Real-time water level data that updates hazard severity automatically Proximity alerts that notify you as you approach a flagged area Per-lake community chat to connect with boaters on the same water Support for 150+ lakes across the United States ClearDepth is built on the idea that boaters looking out for each other makes everyone safer. Every report you add helps the next person on the water.
Written user reviews are not shown here. Check current App Store reviews >
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 Native
Expo
react-navigation
axios
react-native-maps
expo-location
BUILD KIT DIFFICULTY
Expert
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.
