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.
MGRS GPS turns your iPhone into a fast, glanceable military grid reference readout — built for soldiers, search-and-rescue teams, hunters, hikers, orienteers, and field researchers who think in grids and often work wi...
$12.99 · 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.
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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 MGRS GPS: Grid & Land Nav: 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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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
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Complexity in finding specific grid coordinates
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user reviews and community support
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High initial cost for users
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.
MGRS GPS turns your iPhone into a fast, glanceable military grid reference readout — built for soldiers, search-and-rescue teams, hunters, hikers, orienteers, and field researchers who think in grids and often work without a signal. Your position is shown as a large, high-contrast MGRS grid you can read at arm's length and copy with one tap. Mark waypoints, organize them into color-coded overlays, navigate with a clear bearing-and-distance display, record breadcrumb tracks, and keep working when the cell signal drops. POSITION, ANY FORMAT • MGRS / USNG military grid reference • UTM / UPS • Latitude / Longitude (decimal, DDM, DMS) • OSGB British National Grid • Show up to three formats at once • Each extra coordinate format can now be shown in its own datum MAKE IT YOURS • Choose the typeface and color of the grid readout and every data tile • Six style packs, from instrument green to a true 14-segment amber LCD • Style one tile on its own, or hand the whole screen to the readout ONE-TAP SHARING • Tap any readout to copy your grid instantly • Share via the system share sheet • Send a waypoint as a QR code WAYPOINTS & OVERLAYS • Mark your current location, a map point, or type a grid • Group waypoints into toggleable, color-coded overlays • Draw lines and polygons for routes, sectors, and boundaries • Plan multi-point routes with per-leg distance and bearing • Projected waypoints — create a point from a range and bearing off any origin • Military symbols for friendly, hostile, neutral, and unknown units MAP WITH A REAL GRID • Smooth, labeled MGRS / UTM grid overlay • Measure ruler reads distance in degrees AND mils • Range rings around your position, the map centre, or any waypoint • Area shapes — place a square, rectangle, or circle from a centre point and a size • Night vision — the whole app turns red, map included, with a one-tap switch on the Map screen NAVIGATE • Big bearing arrow, distance, cross-track, and ETA • True, magnetic, or grid north reference • Offline magnetic declination from an embedded World Magnetic Model (WMM2025) • Arrival alert with haptic feedback WORKS OFFLINE • Built-in USGS topographic, imagery, and shaded-relief basemaps • Download map areas for offline use — frame a box, pick the detail level, and see the tile count and size before it starts • Offline Maps manager: rename, delete, and see what each area costs on disk • Import your own offline maps (MBTiles raster) • Add your own tile server for coverage outside the US • Core navigation works with no cell signal TRACK RECORDING • Record breadcrumb tracks with distance, elevation gain, and time • Export tracks as GPX IMPORT & EXPORT • Full GPX import / export (waypoints + tracks) • KML and CSV import / export APPLE WATCH • Glance at your grid and bearing on your wrist PRIVATE BY DESIGN • No ads • No subscriptions • No accounts, no cloud sign-in • No analytics SDKs or third-party trackers • Your data stays on your device MGRS GPS is a one-time purchase — every feature is included. No subscriptions, no in-app purchases, and no ads, ever. Not certified for aviation, marine, surveying, live-fire, or military operations. Always carry a backup means of navigation.
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.