App Overview

New Zealand topo maps (Doug's) icon

New Zealand topo maps (Doug's)

Douglas Forster · Navigation

NZ Topographic maps for outdoor users (tramping, hiking, hunting, fishing, search and rescue)

$5.99 · In-app purchases

PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

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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What's included15 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.

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.

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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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for New Zealand topo maps (Doug's): 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

Provide extensive offline maps with a user-friendly download process.

Assumption to check: Limited offline functionality

Validate with people who use this workflow before building.

Hypothesis 2

Include comprehensive place details, photos, and user reviews.

Assumption to check: Lack of detailed place information

Validate with people who use this workflow before building.

Hypothesis 3

Implement turn-by-turn navigation with voice guidance.

Assumption to check: Limited navigation features

Validate with people who use this workflow before building.

Hypothesis 4

Allow users to customize map layers and save favorite locations.

Assumption to check: No user customization options

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

NZ Topographic maps for outdoor users (tramping, hiking, hunting, fishing, search and rescue) Easy to use GPS functionality. Print maps to networked printer or PDF file. No advertisements. Download complete maps after installation of app (no additional cost). No internet or cellular connection needed after that. Vector maps are displayed on the fly from a database of map features. These maps scale nicely, are clear at any resolution and contain multiple layers of feature names appropriately sized to the displayed resolution. They rotate nicely and names flip to a readable orientation. Map databases are based on up to date official data obtained from Land Information New Zealand and the Department of Conservation. The topographic maps are rendered with colours similar to traditional topographic maps. The property maps are rendered with custom colors. The property map shows public property in the green / blue areas (Conservation or local body) and yellow areas (public roads). You can easily see if you are currently on private or public land. Most other mapping apps use raster data but our map data is more compact than raster data: Topographic maps: 1.2 GB Property maps: 0.5 GB Main map functions - all available offline: • Turn on GPS logging with a simple menu touch. • When the GPS is on see where you are on the map • Drop a waypoint at your GPS location with a simple menu touch • Search for a pre-loaded waypoint or track log • Search for place name • Search for street address • Search by map coordinates. Can use NZTM or NZMG projections including 6 or 8 digit short coordinates and map reference if necessary. Or lat/long. • Make a waypoint based on the above searches • Create Goto line from current location to specified target to assist GPS navigation • Optional voice navigation of user defined route or Goto line • Proximity user waypoints with voice announcement. User features (tracks and waypoints) can be added to the maps on the fly or by upload. Main user feature functions: • Tracks and waypoints can be imported from GPX files • Store as many user features as you like in the user feature database. • Waypoint created on the fly via press and hold context menu • Move waypoint as required • Track created on the fly via press and hold context menu and simple track drawing tools • Track recorded by live GPS function • Edit name, colour, notes, track format etc associated with user features • Manage user features in bulk • Export user features to file or iCloud. • View profile graphs of track features. • If online view user features on Google Earth.

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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.

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BUILD KIT DIFFICULTY
Advanced

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.