Know what a trail is like before you hike it.
Every trail app answers "where does it go." None of them answer "what is it like up there today." Traily puts millions of miles of trail on a real topographic map with a live 0–100 conditions score, offline maps for every trailhead, GPS session recording, and reports from people standing on the trail right now. From the team behind Snoflo.
Trail apps solved "where." Nobody solved "should I go today."
You can see a trail's route, photos and five-star reviews in ten seconds. You cannot see whether it's under a Red Flag Warning, whether last night's rain turned it to mud, whether the trailhead drops below freezing tonight, or whether the last person up there found it overgrown with the crossing running high.
Traily is built around that gap. Every trail gets a live 0–100 conditions score computed from the forecast where the trail actually is — temperature, rain, snow, wind and active weather alerts, weighted by the trail's length and difficulty. It's the same scoring engine behind the Snoflo web reports, so the app and the site never disagree. And condition reports come from a phone that was physically on the trail — within about fifty feet, verified on our servers.
No account, no sign-up, no ads. The map, the score, the warnings, the reports, session recording and the logbook are free. Pro exists for offline maps and for people who want to save and watch more than a handful of trails.
What the big trail apps won't do
Each of these is a capability, not a feature. Other apps tell you where trails go and what past hikers rated them; Traily tells you what today is like up there.
An objective conditions score
Every trail gets a live 0–100 score and a Rough-to-Prime band, computed from current and forecast weather at that exact point and weighted by the trail's length and difficulty, with the plain-English drivers behind it. Open your favorites and see which trail is worth driving to this morning.
One source of truthProximity-gated reports
You can only report conditions for a trail you are standing on — within about 50 feet, checked by the app and verified again by the server. A report is evidence someone was actually there, not a guess typed from a couch. Off the mapped network? Your report still counts, filed as an unlisted trail.
Verified by geographyOffline maps for every trailhead
Download the terrain, trails, peaks and campgrounds around any trailhead and navigate all day with no signal — GPS and session recording never needed a connection in the first place. Part of Traily Pro, at about a third of what the big trail app charges for the same feature.
Traily ProSession recording with per-trail history
Tap REC and Traily tracks your route, distance, elevation gain, moving time and pace — for hikes, runs, rides and walks. Sessions link automatically to the trail you're on, so your dashboard shows your history and best time on every trail you repeat.
Your trails, your timesEverything Traily does
Trail map on real topo
Millions of miles of hiking, biking and running trails on a contoured topographic map with terrain shading, mountain peaks, campgrounds, parks and points of interest as tappable layers.
Conditions score
A live 0–100 rating and Rough-to-Prime band for every trail, with the drivers behind it and the forecast that produced it.
Elevation profiles
Total climb, high point, and the shape of the day ahead, charted for every trail before you commit to it.
Active NWS warnings
Red Flag, fire, excessive heat, high wind, storm and flood warnings drawn on the map and repeated in every trail popup.
On-the-ground reports
Two dozen condition words — dry, muddy, overgrown, blowdown, high water crossing, full parking — filed only from the trail itself. Trails glow for 24 hours after a fresh report, and every report you file lands in your private logbook.
Condition alerts
One notification when a saved trail hits fire weather, a freezing overnight low, or the score you set. No spam.
Session recording
Distance, pace, elevation gain, moving time and top speed for hikes, runs, rides and walks — crash-safe, editable afterward, with personal bests per trail.
Offline map areas
Terrain, trails, peaks and campgrounds for any area you choose, downloaded to the phone and rendered with zero bars. A Traily Pro feature.
Weather & dark sky
Hourly point forecasts for the spot you tapped, live river flows for judging crossings, and a stargazing forecast computed on-device — it works with no signal.
From a federal forecast to the trail you're standing on
Trail data
Millions of trail segments compiled from OpenStreetMap and public land-management records, refined and scored by Snoflo.
Live weather
National Weather Service forecasts pulled for the trail's own coordinate, not the nearest city thirty miles down the valley.
Conditions score
A transparent 0–100 score per trail from those inputs, weighted by length and difficulty, with the drivers spelled out.
The people there now
Reports from phones on the trail, weather stamped on at submission, glowing on the map for 24 hours.
Free to start. Pro when you're out a lot.
The map, every layer, the conditions score, warnings, reports, session recording and the logbook are free for everyone — we don't paywall weather you might get caught out in. Pro adds offline map areas and removes the saved-trail, alert and session limits. That's the whole difference.
- Full trail map, all layers, all warnings
- Conditions score and elevation profile for every trail
- File and read condition reports
- Record sessions with live GPS stats
- Hourly weather and the dark-sky forecast
- Up to 3 saved trails, 3 alerts and 3 saved sessions
- Offline map areas — terrain, trails, peaks, no signal needed
- Unlimited saved trails
- Unlimited condition alerts
- Unlimited saved sessions
- Everything in Free · no ads, no accounts, ever
Day hikers to peak baggers
The same map answers a family picking Saturday's hike, a runner chasing a best time, and a backpacker heading past the last cell tower.
Weekend hikers
- Is it worth the drive? One glance, one score.
- See the climb and the high point before you feel them.
- Muddy, overgrown, or clear — from someone there this morning.
Trail runners & riders
- Tap REC — pace, climb and moving time, not lunch breaks.
- Your best time on every trail you repeat.
- Alerts when a favorite hits Prime conditions.
Backpackers & peak baggers
- Offline topo, trails and peaks past the last bar of signal.
- Summits with elevations, river flows for the crossings.
- Moon phase and true darkness for tonight, computed offline.
Built on public data, done right
Traily reads the same data services that power Snoflo on the web, so a trail's score, forecast and warnings are identical whichever one you open.
Real humans, usually within a day
Questions, ideas, or trouble? Email info@snoflo.org. Deeper conditions data, forecasts and reports live at snoflo.org. To manage or cancel Traily Pro, open the App Store, tap your account, then Subscriptions.
Terms of Service
- Informational use only. Traily presents environmental and recreational information (trail locations and attributes, elevation data, weather forecasts, National Weather Service alerts, an estimated conditions score, astronomical calculations, and user-submitted observations) for general informational and trip-planning purposes only. It is NOT a navigation aid, emergency information source, official forecast or warning service, and it is not professional, safety, wilderness, or medical advice. For official forecasts, warnings, evacuation orders and fire restrictions, consult the National Weather Service and the agency that manages the land you are on.
- Traily does not confirm access, openings, or permission. Nothing in the app indicates that a trail is open, maintained, passable, or legal to travel, or that you have any right to be on the land it crosses. Trails close seasonally and permanently; access rules, permits, quotas and fees change. Always confirm access, closures and permit requirements with the managing agency before you travel.
- Trail data may be wrong, outdated, or incomplete. Trail records are compiled from OpenStreetMap, public land-management records, and other third-party sources. Routes, lengths, difficulty ratings, surfaces, elevation profiles, and even a trail's existence may be inaccurate or out of date. Trails are rerouted, abandoned, and overgrown; bridges wash out; some mapped routes may cross private property or closed areas. You are responsible for confirming that a route is public, open, and legal to travel.
- Forecasts and scores are estimates, not measurements. Weather shown in Traily is model output from the National Weather Service, and the 0–100 conditions score is a derived estimate computed from it. Both routinely differ from actual conditions, sometimes substantially, and neither captures local terrain effects, cold-air drainage, canyon winds, microclimates, or rapid change. A high conditions score is not a statement that a trail is safe.
- Fire and hazard information is not authoritative. Fire-weather indications, Red Flag Warnings and other alerts are relayed from public National Weather Service feeds and may be delayed, incomplete, or unavailable. Traily does not show fire perimeters, evacuation orders, closure orders, or fire restrictions, and the absence of a warning in the app does NOT mean there is no fire danger, no burn ban, and no closure. Never rely on Traily for fire, evacuation, or emergency decisions.
- Alerts are best-effort and must not be relied upon. Condition alerts are evaluated on your device by the operating system when it chooses to schedule background work. They can be delayed by hours, or not delivered at all, if your device is offline, low on battery, in Low Power Mode, has background refresh or notifications disabled, or if iOS defers the work. Traily is not a warning system and no alert, or absence of one, should factor into a safety decision.
- The outdoors is dangerous. Use at your own risk. Hiking, trail running, cycling, and remote travel carry inherent risks including wildfire, flash flooding, lightning, extreme heat and cold, hypothermia, falls, river crossings, wildlife encounters, falling trees, and the absence of cell service or rescue. Conditions change rapidly and without warning. You are solely responsible for your own safety, preparation, route-finding, and for independently verifying conditions against official sources. You assume all risk arising from outdoor activity and from any reliance on the app's content.
- GPS features are not a safety system. Session recording, the live elevation and speed readouts, and offline maps depend on your device's GPS, storage and battery, all of which can fail, drift, or be degraded by terrain and tree cover. A recorded track is not a guarantee you can retrace a route. Carry a map, tell someone where you're going, and do not rely on the app to get you back.
- Location and proximity gating. Reporting conditions on a mapped trail requires your device to be within approximately 50 feet of it, plus an allowance for your phone's reported GPS accuracy, verified on our servers. This exists to keep reports honest and is not a safety feature. Location accuracy varies with terrain, tree cover and hardware, and the check may occasionally admit or refuse a report incorrectly. Reports filed away from any mapped trail are accepted and labeled as unlisted-trail reports.
- Subscriptions. Traily is free to download. Traily Pro is an auto-renewable subscription ($3.99/month or $24.99/year in USD; prices may vary by region and are shown in-app before purchase) that adds offline map areas and removes the saved-trail, alert and saved-session limits. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You manage and cancel subscriptions in your Apple Account settings. There is no free trial. Offline areas downloaded while subscribed remain usable if the subscription lapses; new downloads require an active subscription. Purchases and refunds are handled by Apple under the App Store terms; we do not process payments or receive your payment details.
- Offline map content. Downloaded map areas are licensed for your personal use in the app, subject to Mapbox's and OpenStreetMap's terms, and may need to be re-downloaded periodically as map data is updated. Offline coverage includes the base map, trails, peaks and context layers; live data (scores, weather, fresh reports) requires a connection.
- Community reports. By submitting a report you grant Snoflo a perpetual, worldwide, royalty-free license to display and distribute it in anonymous form. You agree to submit only truthful observations from your actual location. Reports are subjective observations by anonymous users, not verified facts, and we do not check them. We may remove any report and may restrict submissions from any installation at our sole discretion. Reports are rate-limited to 10 per installation per day.
- No warranty. Traily is provided "as is" and "as available" without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, accuracy, availability, and non-infringement. We do not warrant that the app or its data will be uninterrupted, timely, current, or error-free.
- Limitation of liability. To the maximum extent permitted by law, Snoflo.org LLC, its members, officers, and suppliers shall not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for personal injury, death, property damage, or economic loss, arising from or related to the app or reliance on its content. Our total aggregate liability for any claim shall not exceed the amount you paid us in the twelve months before the claim. Some jurisdictions do not allow certain limitations; in those jurisdictions our liability is limited to the fullest extent permitted.
- Acceptable use. You may not misuse the app, including submitting false reports, probing or disrupting our services, scraping data at scale, or reverse-engineering the app except as permitted by law.
- Indemnification. You agree to indemnify and hold Snoflo harmless from claims arising out of your use of the app, your violation of these terms, or your outdoor activities.
- Changes. We may update the app, these terms, or discontinue features at any time. Continued use after changes constitutes acceptance.
- Governing law. These terms are governed by the laws of the state in which Snoflo.org LLC is organized, without regard to conflict-of-law principles. If any provision is held unenforceable, the remainder stays in effect.
Privacy Policy
- No accounts, no tracking. Traily has no user accounts, no advertising, and no cross-app or cross-site tracking. We do not sell or share personal data with third parties for marketing.
- Location on your device. Your location is used to centre the map, show nearby trails, drive the elevation and speed readouts, compute the dark-sky forecast, and determine whether you are close enough to file a report. Traily requests location while you are using the app. Background ("Always") location is requested only when you start recording a session, and is used solely while a recording is active — Traily does not track you at any other time and does not record where you travel outside a recording you started.
- Location when you file a report. When you submit a condition report, your coordinates are sent once over an encrypted connection. We use them to verify you are at the trail, to attach the report to the correct trail, and to record the distance and the weather at that moment. Your coordinates are stored with the report on our servers. They are never displayed: a report appears against the trail it belongs to, and the map highlights the trail, not you. We keep the coordinate rather than a blurred one because the trail is what gets shown, so blurring would degrade our own distance record without concealing anything a viewer could see. If you would rather it not be stored at all, do not file a report — everything else in the app works without one.
- Session recordings. When you save a recorded session, its GPS route, timestamps, speed and elevation statistics, the activity type, and the name and notes you typed are uploaded and stored on our servers, keyed to your anonymous install ID. Sessions are private: they are shown only to your installation and are never published or shared. You can edit or delete a session in the app at any time; deleting removes it from our servers. If you discard a recording instead of saving it, nothing is uploaded.
- Anonymous install ID. The app generates a random identifier on first launch, stored in your device keychain, and sends it with reports and sessions so we can rate-limit submissions and let you edit and delete your own. It is not linked to your name, email, or any account, and we make no attempt to associate it with your identity.
- Reports. A published report contains the condition words you chose, a timestamp, the trail it was filed on (or "unlisted trail"), your distance from it, and the weather at submission time. Reports are shown publicly and anonymously; a trail glows on the map for 24 hours after a fresh one. You can delete your own reports from your in-app logbook at any time, which removes them from our servers.
- Logbook. Your logbook is stored on your device. Because reports and sessions are keyed to your anonymous install ID on our side, reinstalling the app can restore them. They are visible only to you.
- Alerts. Trail alerts are evaluated on your device. The trails you are watching and the thresholds you set are stored locally; checking them queries our public conditions service for those trails without sending any identity information.
- Payments. Traily Pro is billed by Apple. We never receive your name, card, or payment details, only Apple's confirmation that a subscription entitlement is active. We store no payment information.
- Email (optional). If you choose to sign up for updates, we store the email address you provide and use it only to send occasional product news. Unsubscribe anytime; write to info@snoflo.org to have your address removed.
- Feedback (optional). In-app feedback is transmitted with your install ID so we can investigate issues; it contains no identity information unless you include it yourself.
- Service providers. Map tiles are served by Mapbox (including tiles stored on your device for offline areas); Mapbox's servers receive standard network request data (such as IP address) needed to deliver tiles, and the Mapbox SDK may collect limited usage telemetry as described in Mapbox's privacy policy. Weather forecasts and alerts are retrieved from public National Weather Service services, and elevation readouts may query the Open-Meteo elevation service, in both cases using approximate coordinates and no identifiers. None of these receive your identity from us.
- Retention. Reports and sessions persist in our database in anonymous, install-ID-keyed form until you delete them. Signup emails are kept until you unsubscribe. Server logs are retained briefly for security and debugging.
- Children. Traily is not directed at children under 13 and we do not knowingly collect personal information from them.
- Contact. Privacy questions: info@snoflo.org.