Strata — know your pitch before you commit to the line

Backcountry trip planning · iOS

Know your pitch before you commit to the line.

No spreadsheets, no five-app shuffle. Strata reads the<br>avalanche bulletin, the slope angle, the aspect, and the live<br>weather for any route — then tells you, in plain English,<br>whether today is a go. Plan it, track it, and bring your crew<br>home. Native iOS, offline maps, no ads.

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Now on iPhone & iPad · free to plan · Pro unlocks the snap-to-trail route builder.

9:41●●● ▮

Today · Tahoe backcountry

Tamarack Peak

Watch — wind slab on N–NE

Considerable above 9,500 ft. Keep to SE rollovers under 32°.

AvalancheConsid.

Weather−4°C

AQI18

Slope max34°

Snow14&Prime;

SignalNone

Start tour

Built on the data the pros actually use

Avalanche.org bulletins (CAIC, NWAC & more) · USGS 3DEP elevation · Open-Meteo · NIFC fire perimeters · OpenStreetMap · Wikipedia

Everything in one trip, so you're not stitching apps together

Smart route discovery

Browse curated routes or search millions of mapped trails. Nearby alternatives rank safer lines first, based on today's conditions.

AI safety verdict

A Claude-backed analysis fuses the avalanche bulletin, slope angle, aspect, and live weather into one plain-English call: go, watch, or avoid.

9-tile conditions ribbon

Weather, AQI, cell coverage, snow, avalanche danger, and streamflow — pulled live and color-coded safe, watch, or avoid at a glance.

Multi-day planner

Build trips with waypoints, overnight camps, and stacked descents. A pre-flight prep sheet lines up your activity, crew, return-by time, and gear before you head out.

Live group awareness

See your crew's real-time positions on the map, and fire a one-tap SOS that shares your location with the whole group.

Tour recaps & memoriesNEW

Your recorded GPS track against the plan, elevation profile, and stats — built into a multi-day trip story you can look back on.

What's actually different

Strata doesn't just show the data. It makes the call.

Other apps hand you a slope-angle layer and a weather widget and<br>leave the judgment to you at the trailhead. Strata weighs the<br>things that actually hurt people — wind slabs on lee aspects,<br>steep rollovers, a forecast turning while you're above<br>treeline — and gives you one verdict you can read in five<br>seconds.

⛷ Tamarack Peak · N–NE aspect · today

Watchverdict · wind slab forming

Consid.Avalanche danger · 9,500 ft and up

34°max slope on the standard line

SE Strata's safer alternative

Works solo. Better with a crew.

Every screen works on its own — plan a route, get your own<br>safety verdict, record your track, no partners required. When<br>you tour with others, add them to your roster and see everyone's<br>live position on the map. If something goes wrong, one tap fires<br>an SOS with your coordinates to the whole group. Track recording<br>and your planned route keep working long after the bars disappear.

Pro: draw lines that snap to the mountain

The Pro route builder snaps every waypoint to real trail geometry<br>using a precomputed graph and A* pathfinding, then vets the line<br>against slope angle, aspect, and today's avalanche danger. Pro also<br>unlocks downloadable offline map packs, unlimited saved routes, and<br>trip reports for multi-day tours.<br>See pricing →

How your data is used

Strata uses your location to show you on the map, record your<br>track, and share your live position with the crew you choose —<br>and nothing else. Route-safety analysis runs through Anthropic's<br>Claude as a data processor that never trains on your data. Maps<br>are downloadable for offline use, so the app keeps working with no<br>signal.

We do not sell, share, or use your data for advertising. We do<br>not set tracking cookies or run analytics pixels on this website.<br>Read the full Privacy Policy and our<br>Security overview.

Safety is the point

Strata informs your decisions — it doesn't make them for you. Every verdict shows its reasoning so you can overrule it with eyes open.

Works off the grid

Track recording and your planned route keep working with zero bars — and Pro adds downloadable offline map packs for the regions you tour.

Independent studio

Strata is small and independent. The same hands that ship the design ship the code and answer the email.

Ready to plan your next line?

Strata is on the App Store. Plan routes and read today's verdict<br>for free — upgrade to Pro when you want the snap-to-trail builder<br>and unlimited saved routes.

See pricing