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.
MAPS n TRAX is a VERSATILE and HIGHLY CUSTOMIZABLE offline map viewer, GPS track recording and WAYPOINT detail recorder.
$6.99 · 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 Maps n Trax - Offline Maps, GPS Tracks & Waypoints: 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 compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Poor user interface and navigation experience
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of real-time traffic updates
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High price for basic features
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.
MAPS n TRAX is a VERSATILE and HIGHLY CUSTOMIZABLE offline map viewer, GPS track recording and WAYPOINT detail recorder. * IMPORT AND VIEW YOUR OWN MAPS and GPS tracks on your device, and record tracks and detailed WAYPOINT notes. MAPS n TRAX excels in rugged "off the grid" professional, academic, and recreational activity on land, sea or air! * GREAT SUPPORT! MAPS n TRAX is well-supported with a detailed online User Guide (http://rallyto.com/maps-n-trax/maps-n-trax-user-guide/) and responsive, personal email support. With MAPS n TRAX you can: • Import and view your favorite maps (see supported file formats below*). • View your current GPS location on your imported map. • Record GPS tracks. • Record waypoint details including photographs and field notes. • View maps and tracks superimposed on familiar online background maps. • Import GPS tracks from other sources or export your track records. • Easily store, organize and access multiple maps and track files. Use MAPS n TRAX to view specialized map files, topographic maps, or digital map image files and gps tracks on your iOS device. You can even import scanned paper maps or photos of maps! Even when far beyond the reach of cellular data or WIFI networks, with MAPS n TRAX you can view your own downloaded maps and use the GPS navigational features of your iOS device. MAPS n TRAX has numerous professional applications. Our customers use the app to support forest fire fighting operations; environmental and biological field research; search and rescue; petroleum and mining; real estate; geo-truthing; flying; sailing; and, academic research. The off-the-grid functionality and waypoint recording features provide a powerful mobile toolset. MAPS n TRAX is also ideal for a wide range of outdoor recreational including: bushwalking, hiking, trekking, bird watching, treasure hunting, prospecting, camping, bicycle touring, hunting, fishing, snowmobiling, dogsledding, 4-wheel drive off-road motoring, geocaching, orienteering, randonneuring, mountain biking, skiing (downhill, backcountry, Nordic), and squatching, among others. Many publicly available maps can be imported into MAPS n TRAX. In addition the app is well suited for applications that require specialist maps with details that are customized or are not widely available, such as highly detailed topographic maps obtained from your government mapping authority or specialized maps produced with GIS tools. Details: • Converts and displays a wide range of map and image file types including * PNG, JPEG, TIFF, GIFF, ESRI Shapefiles, ESRI File Geodatabase and Open Street Map (PBF & XML) and geo-referenced image formats such as GeoTIFF. (Note: .ozf2 & .ozfx3 files are NOT supported). See the User Guide for more information about working with these files. • Imports and exports tracks in GPX and KML formats. • Compatible with raster and vector map file types and projections used in commercial and open source Geographic Information Systems (GIS) software tools including ARCGIS and OpenStreetMaps. • Automatically align geo-referenced image files or manually calibrate non-geo-referenced ones. • Can display large maps and can join several consecutive large maps into a single huge map. The map size is limited only by the iPhone or iPad's storage capacity. • Imported maps of different scales can be viewed simultaneously, adjacent to or overlapping each other. • Multiple tracks can be displayed on maps simultaneously and tracks with named waypoints can be searched like a directory or gazetteer. We recommend that you review our website www.rocketsplashgames.com/mapsntrax/support/ and the online User Guide to be sure that MAPS n TRAX suits your requirements. The User Guide section on Preparing Maps describes the process to prepare a plain image file for use as a location-calibrated and mobile-optimized map image. Continued use of the GPS running in the background can dramatically reduce battery life on the iPhone or iPad.
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.