App Overview

KMZ Previewer icon

KMZ Previewer

Greg Boratyn · Travel

Bring your KMZ files to life on a beautiful 3D map.

$0.99 · In-app purchases

PRICE
$0.99
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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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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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/
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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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Quick prompt

> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for KMZ Previewer: map the core Travel 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

Expand to support various file formats like KML, GPX.

Assumption to check: Limited file format support for KMZ files

Validate with people who use this workflow before building.

Hypothesis 2

Implement a more visually appealing interface with better navigation.

Assumption to check: Poor user interface and navigation experience

Validate with people who use this workflow before building.

Hypothesis 3

Add features to share KMZ files via email or social media.

Assumption to check: No sharing options for KMZ files

Validate with people who use this workflow before building.

Hypothesis 4

Incorporate a review system to gather user feedback and improve the app.

Assumption to check: Lack of user feedback or reviews

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

Bring your KMZ files to life on a beautiful 3D map. KMZ Previewer turns the .kmz files you've collected from Google Earth, hiking apps, photo planners, and trail websites into a fully interactive experience on your iPhone. Pinch to zoom in on a mountain pass, tilt for a realistic 3D view, and switch between four gorgeous map styles in a single tap. Whether you're previewing your next hike, planning a photo trip, or just revisiting where you've been — KMZ Previewer keeps everything one tap away. WHAT YOU CAN DO • Open any KMZ file — straight from Files, iCloud, Mail, or the share sheet. Placemarks, paths, and polygons all render automatically. • Pick your map style — Standard, Terrain, Hybrid, or Satellite. Every style supports realistic 3D elevation so mountains look like mountains. • Search any place — find restaurants, landmarks, addresses, or trailheads. Tap a result to see the straight-line distance to the nearest point in your KMZ and to your current location. • Drop your own pins — tap the map to drop a pin at exact GPS coordinates, or type latitude and longitude manually. Name each one, edit it later, and drag-to-reposition with a long-press. • See it all at once — KMZ features in orange, your custom pins in green, search results in blue, and your location in the classic blue dot. • Share your work — send the loaded KMZ via AirDrop, Messages, Mail, or save it back to Files. • Your places persist — the last opened KMZ and every custom pin you create are saved across app launches automatically. BUILT FOR iPHONE KMZ Previewer is a native SwiftUI app built on Apple MapKit. It's lightweight, has no ads, no tracking, no accounts, and works fully offline once a map area has been viewed. PERFECT FOR • Hikers previewing routes shared by friends or downloaded from trail websites • Photographers planning trips around saved photo spots • Travelers reviewing custom Google Earth itineraries on the go • Anyone who needs a quick, no-friction way to look at a .kmz on iPhone PRIVACY KMZ Previewer keeps everything on your device. Your location is only used to show your position on the map and to compute distances — it's never sent anywhere. No analytics, no third-party SDKs, no accounts. Open a KMZ. See your trip. Plan the next one.

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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.

SUGGESTED BUILD STACK
React Native
Expo
React Navigation
Redux
react-native-maps
@react-native-community/async-storage
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.