onX Offroad and TrailSync get mentioned in the same forum threads, but they answer different questions. onX answers: what is this trail like, can my vehicle handle it, and am I allowed to be here? TrailSync answers: can my rig run this whole trip — fuel, water, camps, fire season, battery — and how do I keep the plan true once I am out there?
If you are searching for an onX Offroad alternative, the first thing to figure out is which of those questions you are actually asking. If it is the first one, be honest with yourself: onX’s trail difficulty data and land boundaries are excellent, and TrailSync does not attempt either. If it is the second, no trail app covers it — and that is exactly the ground TrailSync was built on.
Here is the fair version of the comparison, strengths first.
Where onX Offroad Wins
What onX Offroad does best
These are the things onX Offroad genuinely does better than anyone, including us.
Trail difficulty data that saves vehicles.
onX Offroad rates trails by difficulty, with photos, community reports, and curated guides. Knowing a route is rated harder than your stock suspension wants is the kind of information that prevents expensive days. TrailSync has no trail difficulty ratings, so if technical trail selection is the core of your trips, onX earns its subscription.
Private-land boundaries and land ownership.
onX made its name on land data. Public/private boundaries, ownership information, and open/closed trail status keep you legal and keep landowner relations intact — a genuinely hard dataset to build, and one no one else matches in the offroad space.
Offline maps and a purpose-built offroad map.
Downloadable offline maps with an interface designed specifically for offroad travel, plus featured trail collections that make finding a weekend route easy. It is polished, focused software.
Where TrailSync Wins
What TrailSync does that onX Offroad doesn't
And this is the expedition layer onX does not cover — everything around the trail.
Routes built from your rig’s real numbers.
TrailSync starts with your vehicle: MPG, fuel capacity, water capacity, dimensions. The route engine turns those into an itinerary that works — fuel stops before the tank runs low, water fills where they actually exist, camps spaced to your true daily range. onX can tell you the trail is rated moderate; it cannot tell you whether you will reach the next fuel stop.
A campsite database with receipts.
22,829 campsites across the US and Canada, all from open government data — USFS, BLM, Recreation.gov, BC Recreation Sites, Parks Canada, Alberta Parks — credited to source. Members add spots the datasets miss and confirm conditions from the site itself, GPS-verified, so a report means someone actually stood there.
Live wildfire corridor scanning.
Every route is scanned 50 miles to each side for active fires from the National Interagency Fire Center, and saved trips re-check automatically each time you open them. In a Western fire season this one feature has re-routed more trips than any other.
Live rig telemetry inside the trip.
Connect Victron VRM or an RREV Hub and TrailSync shows battery state of charge, solar harvest, loads and tank levels live, next to the plan those numbers have to serve. No trail app has this. TrailSync is built by RREV, an expedition vehicle company — the software knows rigs because we build them.
Offline-first, with a story at the end.
An offline-first PWA that assumes disconnection: trips cache, logs queue, everything syncs later. The GPS-stamped Trail Log keeps the expedition record, and when you are home, the trip renders into an animated, shareable story.
Side by Side
Feature comparison
| Feature | TrailSync | onX Offroad |
|---|---|---|
| Rig-aware route planningMPG, fuel and water capacity, and vehicle dimensions shape the itinerary | Yes | No |
| Open-government campsite database22,829 sites across the US and Canada — USFS, BLM, Recreation.gov, Parks Canada and more | Yes | No |
| Live wildfire corridor scanningNIFC data scanned 50 miles around your route, re-checked on every saved trip | Yes | No |
| Live rig telemetry in-appVictron VRM or RREV Hub — battery, solar, loads and tanks inside the trip | Yes | No |
| GPS-stamped trail logPhotos stamped with coordinates, site, date and trip day | Yes | No |
| Animated shareable trip stories | Yes | No |
| Trail difficulty ratings and guides | No | Yes |
| Private-land boundaries and ownership data | No | Yes |
| Downloadable offline map layers | No | Yes |
| Offline use in the fieldTrailSync: offline-first PWA (trips, camps, logs). onX: downloaded maps | Yes | Yes |
| Campground/dispersed campsite databaseTrailSync: 22,829 open-government-data sites plus community layer | Yes | Partial |
| Free tier | Yes | Partial |
Comparison reflects publicly documented features as of 2026. Spot an error? Tell us and we'll fix it.
The Fine Print
What TrailSync doesn't do
A comparison page that hides its own gaps isn't a comparison, it's an ad. Here are ours.
- TrailSync has no trail difficulty ratings and no curated technical-trail guides. If picking rated trails is your core need, onX is the better tool for it.
- TrailSync has no private-land boundary or land ownership data.
- TrailSync does not offer downloadable offline map layers — offline support covers your trips, campsites and logs, not map tiles.
- Coverage is US and Canada only.
The Verdict
Which should you use?
The honest split: onX Offroad is a trail app, and a very good one. TrailSync is an expedition planner. onX helps you choose and legally run a trail; TrailSync makes sure the ten days around that trail hold together — fuel, water, camps, fire, power — and it is the only app in this comparison that can watch your battery bank while it does it.
If your overlanding is technical trail days close to home, onX may be all you need. If your overlanding is a loaded rig and a week off pavement, plan the trip in TrailSync and bring whatever trail app you like for the gnarly sections. TrailSync’s free tier means testing that workflow costs nothing.
FAQ
TrailSync vs onX Offroad: common questions
Is TrailSync a replacement for onX Offroad?
Not for trail-level decisions. onX Offroad’s trail difficulty ratings and private-land boundary data are excellent and TrailSync offers neither. TrailSync replaces the expedition-planning layer no trail app covers: rig-aware routing built from your MPG and tank capacities, 22,829 open-data campsites, live NIFC wildfire scanning, and live rig telemetry. Many overlanders use TrailSync to plan the trip and a trail app for technical sections.
Does TrailSync show trail difficulty or land boundaries?
No. TrailSync has no trail difficulty ratings and no private/public land boundary layer — those are onX Offroad’s core strengths and we would rather point you to the right tool than pretend. TrailSync’s campsite data does indicate access ratings and site details drawn from official government sources.
What does TrailSync do that onX Offroad does not?
TrailSync plans the whole expedition around your specific vehicle: fuel stops from your real MPG and tank size, water stops, camp spacing, live wildfire corridor scanning that re-checks saved trips, weather with barometric trend and solar forecast, and live rig telemetry from Victron VRM or an RREV Hub. It also keeps a GPS-stamped Trail Log and renders finished trips into shareable animated stories.
Is TrailSync free?
Yes — free to plan trips, browse all 22,829 campsites, and check fire and weather. Pro adds unlimited saved trips, the full Rig Monitor, unlimited Trail Log and animated trip stories, with a 7-day trial. No card is required to start planning.
Free to start
Plan your next trip in TrailSync
Free tier includes trip planning, all 22,829 campsites, and live fire and weather checks. Pro adds the Rig Monitor, unlimited Trail Log and trip stories, with a 7-day trial.
No card required to plan
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TrailSync is built by RREV — Roam Resilient Expedition Vehicles, an expedition vehicle company. Read why we built TrailSync or start with the free campsite directory. onX Offroad is a trademark of its respective owner; TrailSync is not affiliated with or endorsed by onX Offroad.