Deadzone - Maps & Satellite AI
Intelligent Maps & Tools
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Download topo maps for offline use, layer motorized-route, public-lands, water data and more that outdoor pros rely on, then ask an AI grounded in live government data.
Topographic maps & tools that work with no signal. NOTE: Satellite SMS feature is used outside of this app via Messages. This companion app is for using and downloading maps and tools for offline use, as well as using the Ask Deadzone AI assistant with internet.
Deadzone is built for backcountry travel where the map app on your phone gives up. Download a North American topographic basemap — 10-meter contours, 94,000 named summits, light and OLED-black "Night Ops" themes, and navigate offline once you're out of service.
MAP DATA OUTDOOR PROS ACTUALLY READ
Layer the data that matters, every feature tappable for detail:
- Motorized routes: USFS Motor Vehicle Use Maps, Forest Service roads & trails, BLM travel-management routes
- Public lands: ownership and jurisdiction (PAD-US), designated wilderness, National Park trails
- Water: rivers and lakes, coastal and inland depth contours, live tides and river gauges
- Hazards: active wildfire perimeters, cell-coverage dead zones
- Trails: OpenStreetMap and state OHV systems
- And much more
TERRAIN TOOLS
Tools that compute against real elevation data, on-device and offline:
- Route profile — elevation gain and loss along any route
- Viewshed — everything visible from a point
- Sight line — whether you have a clear view between two points
- Radio line-of-sight — whether two stations can reach each other over the terrain
- Sun & shade — where shadows fall at any date and time
- Plus wind, area and distance measurement, coordinate conversion, and geofence alerts
- And more
ASK DEADZONE
An AI assistant tuned for the outdoors. Ask about weather, trail conditions, water sources, or gear, and get answers grounded in live data from the NWS, USGS, the National Park Service, and more, not guesswork. Tap any map feature to ask a follow-up question about that exact spot.
PLAN AND RECORD
Build multi-day trips with waypoints, import and export GPX, get a briefing the evening before you leave, and record your track on the trail.
FIELD REFERENCE
Wilderness first-aid protocols, written for fast reading when it counts.
PART OF THE DEADZONE PLATFORM
Deadzone also bridges satellite SMS to the same AI — text questions from anywhere with no cell service (T-Mobile T-Satellite, Garmin inReach, and compatible devices). The app is your planning and navigation companion to that service.
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Deadzone requires an account; create one and choose a plan at getdeadzone.io. Plans start at $5.99/month and include full offline maps and every overlay.
Maps, tools, and field references are for informational planning only and are not a substitute for professional judgment, official sources, or emergency services. Deadzone is not an emergency service; in a life-threatening situation, contact 911 or a satellite SOS / personal locator beacon.
© 2026 Obsidian Design, LLC
Roads & Trails:
Road numbers and trail names now labeled across all overlays, and readable on satellite too.
New OSM Roads overlay adds much broader coverage at more zoom levels.
Tap a road and the whole route highlights, with a new "What road am I on?" indicator while navigating.
New Open Now / Likely Closed status combining seasonal closures, fire perimeters, and community reports.
Community Road Reports (new):
Report and view current conditions — mud, snow, downed trees, gates, closures. Confirm, clear, or flag others' reports. Anonymous, and fades as it ages.
Camping:
Dispersed camping "Smart Spots" now covers the Lower 48, with improved accuracy.
Ask Deadzone finds verified campsites nationwide.
Map & Fixes:
Cleaner map controls and more legible labels; satellite loads faster.
Fixed saved overlays not restoring on reinstall, a Settings profile-save error, and road names in tap info and directions.
The developer, Obsidian Design, Limited Liability Company, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- User Content
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Obsidian Design, Limited Liability Company
- Size
- 25.8 MB
- Category
- Navigation
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
- Copyright
- © 2026 Obsidian Design, LLC
