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.
- TIME Magazine’s 15 Fantastic Gadgets
$9.99 · 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.
Kit ready. Verify your email to download it.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for GPS Kit - Offline GPS Tracker: 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.
Affiliate link: CloneChart may earn a commission at no extra cost
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 functionality compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulties in finding saved places
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Slow performance with large map data
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface is not very modern
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.
- TIME Magazine’s 15 Fantastic Gadgets “Perfect for hiking or mountain biking.” - TUAW.com “The GPS Kit app... has a number of excellent outdoor uses, especially [for] hiking, biking or geocaching.” - NBC’s ‘The Browser’ Radio Show “Most beneficial for adventure-type guys.” _________________________________________________________ Top-of-the-line GPS system for adventurers and professionals in the great outdoors. Designed for outdoor activities such as: hiking, hunting, camping, skiing, cycling, geocaching, mountain biking, motorcycling, off-roading, fishing, and other romping in or out of the backcountry—ANYWHERE IN THE WORLD. GPS Kit is a full-featured GPS system for the iPhone that combines all the functionality of expensive handheld units with the power of wireless technology. Using advanced technology optimized for the iPhone, GPS Kit offers a superbly easy-to-use system that puts data from a wide range of sensors at your fingertips. Highest Quality Mapping - Fastest maps in the App Store - Smooth, elegant interaction - Offline Mode enables use out of cell range - No data connection required if map is cached - Use your own map sources Simple, Powerful Data Handling - Mail links for Google Earth & map viewing - Full-color thumbnails of data sets - Group tracks and waypoints together - Most options for export and import of data - Open KML, KMZ, & GPX from Mail & Safari - Attach KML & GPX files to email - Export GPX & KML through iTunes - Share your adventures on Facebook and Twitter Powerful Waypoints - Add photos and notes to waypoints - Drag map to reposition as coordinates update - UTM, USNG, MGRS - Long-press to quickly drop a waypoint - Navigate to waypoints using compass - Magnetic compass (3GS, 4, iPad) - Option to use current travel direction on compass - See distance to waypoint update in real-time Weather Stations (U.S. Only) - Create "weather stations" to get point forecasts - Get data specific to your fishing hole, ski tour, etc. - Data provided by the National Weather Service - Unlimited stations Intelligent Data Collection - Uses maximum GPS accuracy - Real satellite positioning even without cell signal - Auto-segmentation of tracks for clean tracks Fully Customizable Dashboard - Gorgeous high contrast display - Huge variety of parameters and units - Time, Trip Time, Track Time - Elevation Change - Formatted Position (Lat/Lng, UTM, MGRS, USNG) - Accuracy, Speed, Odometer, Avg Speed - Max Speed, Pace, Avg. Pace - Moving Time, Stopped Time, Direction - 3-Axis Inclinometer and Glide Ratio - Customizable cell on map Loaded with Related Utilities - Elevation and speed graphs - On-map tracking controls and timer - On-map ruler - Multi-touch area measurements * Use of "Squawk!" requires an Internet connection and extended use may adversely impact battery life Continued use of GPS running in the background can dramatically decrease battery life
Written user reviews are not shown here. Check current App Store reviews >
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.