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
GPS Nav Survey Camera
FieldCam is the ultimate tool for professionals and adventurers who need precise, detailed photo documentation
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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.
JavaScript is required to complete mailbox verification.
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 GPS Nav Survey Camera: map the core Navigation workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 offline maps and caching for better usability.
Assumption to check: Limited offline functionality.
Validate with people who use this workflow before building.
Hypothesis 2
Implement better error handling and fallback options.
Assumption to check: Camera access issues on certain devices.
Validate with people who use this workflow before building.
Hypothesis 3
Streamline UI elements for better user experience.
Assumption to check: User interface can be cluttered.
Validate with people who use this workflow before building.
Hypothesis 4
Provide clear explanations and trials for premium features.
Assumption to check: In-app purchases may confuse users.
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
FieldCam is the ultimate tool for professionals and adventurers who need precise, detailed photo documentation. Designed for engineers, surveyors, outdoor enthusiasts, and anyone who values geospatial accuracy, this powerful camera app overlays your photos with essential data and keeps your projects organized. OVERLAY AND STAMP PHOTOS WITH CUSTOMIZABLE DATA: GPS coordinate in various formats (including MGRS and UTM) Custom GPS coordinate Photo Target Name, Distance & Compass Angle Indicator Compas Heading (Bearing) Altitude Compass View Photo Target Angle Date & Time in various formats Project Name Custom Notes CAMERA Supports both back and front (selfie) cameras in portrait and landscape orientations. Camera has pinch zoom, focus, flash and grid on/off controls. PROJECT-BASED ORGANIZATION: Easily switch between projects and group your photos by project for seamless organization GALLERY AND PAGER PREVIEW Easily view, edit, export and delete photos or complete projects in gallery or pager view. INTERACTIVE MAP PREVIEW View your photos and projects plotted on a map for intuitive location-based review. If photo has a target set then you can see target location and distance. POST-CAPTURE EDITING Easily edit overlay details after taking the photo to ensure accuracy and relevance. EFFORTLESS PHOTO MANAGEMENT Export, delete, and manage your projects and photos with ease. Perfect for: - Field Surveys - Construction Documentation - Environmental Research - Outdoor Adventures - And more! Field Camera Pro streamlines your workflow by combining powerful geospatial data capture with intuitive project management. Whether you're documenting a worksite, mapping an adventure, or recording critical observations, this app ensures your photos are as informative as they are organized. Download FieldCam today and capture the world with unparalleled detail! The free app version includes basic features. In order to unlock the premium features and support future app development, please purchase the full version by using one-time in-app purchase. There are no annoying ads and subscriptions. More features coming soon. For any suggestions, custom solutions and bug reports do not hesitate to contact me at [email protected].
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
Supabase
react-navigation
expo-camera
react-native-maps
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.
