Best Hiking Apps UK 2026: OS Maps vs Komoot vs AllTrails (Compared in Scotland)

Quick Summary

• OS Maps is the default for Scottish hillwalking — it's the actual Ordnance Survey mapping, the same 1:25,000 and 1:50,000 data on paper OS maps, rendered digitally with offline cache
• Komoot is best for route planning and cross-activity use — cleanest planning UX, but OSM-based map data that sometimes misrepresents Scottish hill terrain
• AllTrails has the biggest user-contributed library — strongest for “find a popular walk near me”, weakest for remote Scottish hills where the community content thins out
• Make a smarter pick — our Route Compare tool complements any of these by letting you compare actual Scottish long-distance trails side-by-side

The three apps in this comparison dominate the UK outdoor market and none of them were built with Scottish conditions as the primary design target. OS Maps comes closest because it's literally the Ordnance Survey. Komoot is German and built around road and gravel cycling. AllTrails is American and built around the US national parks system. Each has a different blind spot when you take it above 600m in a Scottish whiteout.

Quick verdict for UK walkers: For most people in the UK, OS Maps is the one to download — it's the official Ordnance Survey mapping, the gold standard for British hills, at £34.99/year for new customers (£28.99 on renewal) with reliable offline caching. Pick Komoot if route planning and cross-activity use (walk plus cycle plus gravel) matter most — but note Komoot is now subscription-only for new users (£4.99/month or £59.99/year), as its old one-off “World Pack” was withdrawn for new sign-ups in February 2025. Choose AllTrails to browse popular walks from a huge community library with photos and recent condition reports. All three have free tiers, but all three paywall the offline maps you actually need on the hill. For most Scottish walkers, one paid app — OS Maps Premium — plus a paper map is the honest answer. Everything below is how they hold up when you take them onto Scotland's hardest ground, which is where the differences actually bite.

Quick Answer: For Scottish hillwalking, OS Maps is the default — it renders the actual 1:25,000 and 1:50,000 Ordnance Survey mapping that paper OS maps use, with reliable offline caching and the most accurate terrain data for UK mountains. Komoot is better for route planning UX and cross-activity use (hike plus cycle plus gravel), but its OSM-based maps occasionally miss small Scottish paths. AllTrails has the biggest user-contributed route library but is weaker on remote hills where community content thins out. Most experienced Scottish hillwalkers carry OS Maps as the primary app with either Komoot or a paper map as a backup.

The best hiking apps for Scotland, ranked

If you just want the shortlist before the full breakdown:

1. OS Maps — best overall for Scotland. The actual Ordnance Survey 1:25,000 and 1:50,000 mapping, native OS grid references, and the most accurate hill-path and terrain detail of any app. The one to have if you only have one — get OS Maps Premium(affiliate link).
2. Komoot — best for route planning and cross-activity use. The slickest planning UX in the category and superb Garmin and Apple Watch integration. Now subscription-only for new users (£4.99/month or £59.99/year) since its one-off World Pack was withdrawn for new sign-ups in February 2025 — worth it if you plan a lot or want mapping on your watch, but no longer the cheap buy-once backup it used to be.
3. AllTrails — best for finding popular walks. The biggest community library of user routes, photos and recent condition reports — strongest for “what should I walk near me?”, weakest for remote hills and pure navigation.

That ranking is for Scottish conditions specifically — accurate mountain mapping and no-signal reliability weigh heaviest. The rest of this guide is the detail behind it: mapping accuracy, offline reliability, planning, pricing and the direct head-to-heads.

What each app actually is

OS Maps (Ordnance Survey)

OS Maps is the digital product of the Ordnance Survey — the national mapping agency that has been surveying Britain since 1791. The mobile app and web planner render the same 1:25,000 (Explorer) and 1:50,000 (Landranger) mapping that every paper OS map uses. You're not looking at an approximation or a third-party render — you're looking at the source. That matters more for Scotland than anywhere else because Scottish hill terrain is where cartographic detail matters most.

Komoot

Komoot is a German route-planning and navigation app built originally for road cycling and gravel, expanded over time to include hiking, mountain biking, running and ski touring. Map data comes from OpenStreetMap (OSM) — the community-maintained global map project — rendered with Komoot's own tile style. Route planning uses a proprietary algorithm that weighs trail surface, elevation and difficulty. It's built by cyclists and it shows.

AllTrails

AllTrails is the largest hiking app in the world by user numbers, founded in California in 2010. Maps combine OSM data with Mapbox satellite imagery. The product's signature feature is a massive community-contributed database of routes with user photos, reviews and condition reports — over 400,000 globally. The UK content is a subset of that, with better coverage on popular trails and thinner coverage on remote hills.

Pricing, July 2026

Prices verified against the operators' own sites in July 2026 and subject to change; all three run frequent 50%-off promotions, so check the price on the day. OS Maps quotes £34.99/year for new customers and drops to £28.99/year on renewal.

Komoot is no longer a one-off purchase

For years the best-value tip in outdoor navigation was Komoot's one-off “World Pack” — pay once, unlock offline maps for every region globally, own them forever. That deal is gone for new users. Bending Spoons acquired Komoot in early 2025 and, from 27 February 2025, new accounts can no longer buy region or world map packs and must subscribe to Komoot Premium (£4.99/month or £59.99/year) to unlock offline maps for all regions and to sync routes to a Garmin or Apple Watch. Only legacy users who bought a pack before that cutoff keep the buy-once access. Komoot's marketing pages still show the €29.99 World Pack, but new sign-ups can't get the old lifetime, sync-everything deal — so treat Komoot as a subscription now, and don't buy it expecting a one-off backup.

Mapping data quality — the critical section for Scotland

This is where the three apps diverge meaningfully, and it's the section that matters most if you're heading into the Cairngorms in winter or onto a Graham with no obvious path.

OS Maps: the authoritative source

OS 1:25,000 (Explorer) mapping shows every path, every wall, every burn, every contour at 10m intervals, every rock outcrop, every marsh symbol. It is the gold standard for UK mapping by a wide margin. Scottish hill features are represented with more detail than any other mapping product on the market because the Ordnance Survey literally surveyed them.

For Scottish hillwalking, this means:

• Paths are accurate and current. OS updates its mapping continuously. A path that appears on OS Maps is almost certainly there on the ground.
• Terrain is unambiguous. Crags, scree, boulder fields, bog symbols — all clearly shown. You can tell a grade-II winter climb from a walk-up just by reading the contour spacing.
• Grid references are authoritative. Scottish Mountain Rescue, the MOD, and every professional outdoor organisation in Scotland works in OS grid references. OS Maps is the only app that uses them natively throughout.

Komoot: OSM data with a cycling bias

Komoot's OSM base is excellent on roads, cycle paths and popular waymarked trails — often as good as OS for the West Highland Way or the Fife Coastal Path. Where it struggles:

• Small Scottish hill paths that aren't in OSM. An unmarked stalker's path up a remote Corbett may simply not appear on the map.
• Bog and rough ground symbology is missing. OSM doesn't have the bog symbol that OS uses. In Scottish blanket bog country (which is most of the west Highlands) this matters.
• Contours are 20m interval on Komoot's default render. Less detail than OS's 10m contours for fine terrain reading.

AllTrails: OSM plus satellite, plus community content

AllTrails renders OSM similarly to Komoot but layers in satellite imagery from Mapbox, which is genuinely useful for scouting remote approaches. The signature feature is the community content — user-contributed trails, photos and reviews. Where AllTrails struggles in Scotland:

• Coverage is uneven. Popular trails (Ben Lomond, Glentress, the Quiraing on Skye) have dozens of user routes and hundreds of photos. A random Graham might have one blurry iPhone shot from 2019.
• Route grades are not Scottish conventions. AllTrails uses American easy/moderate/hard grades rather than the Scottish grade 1-5 system or the winter II/III system. A Scottish grade-3 scramble rated “hard” alongside a stroll-and-a-cafe rated “moderate” can be misleading.
• Map detail is lower than OS. For pure navigation on ground, OS wins decisively.

Offline reliability

Every Scottish hill day has a section with no mobile signal. Offline map caching is non-negotiable.

OS Maps' offline system is the most flexible — you download arbitrary rectangles at either 1:25k or 1:50k scale — but the biggest storage footprint. Komoot's region system is simpler but less flexible if you're covering a big area. AllTrails' route-specific approach is the smallest footprint but the most likely to require signal at awkward moments.

For Scotland specifically: OS Maps and Komoot both handle genuine no-signal days cleanly. AllTrails has had historic issues with “you're offline, please reconnect” prompts at summit reach times — better than it used to be but not flawless.

Route planning UX

OS Maps

Web-based route planner is functional but dated. Click points to draw a route, auto-snaps to OS paths, tracks distance and ascent. No routing algorithm — you draw the route yourself. For experienced walkers this is a feature; for beginners trying to plan a Munro circuit for the first time it's intimidating.

Komoot

The best route planning UX in this comparison by a wide margin. Drag-and-drop waypoints, auto-routing on trails or roads, elevation profile on the fly, surface-type awareness (gravel vs tarmac vs singletrack). Multi-day itinerary tools for long-distance trails. Voice turn-by-turn navigation works well for cycle routes and is adequate for waymarked walks.

AllTrails

Strong on “find a route near me” and browsing pre-planned user routes. Weaker on planning a custom route from scratch — the custom route builder exists but is clearly secondary to the pre-made content discovery flow.

GPX import and export

All three support GPX, but the details matter:

• OS Maps: Premium imports GPX into “My Routes”. Exports GPX from any saved route. Free tier can't do either reliably.
• Komoot: Imports and exports GPX on the free tier; syncing routes to an external device (Garmin, Wahoo, Apple Watch) needs Premium for new users.
• AllTrails: Exports GPX on AllTrails+. Imports exist but the UX is hidden. Best treated as export-only.

If you're a GPX-heavy user (downloading third-party route bundles, using a separate GPS device), OS Maps or Komoot are the better choices.

Community content and user-generated routes

AllTrails

Wins on volume. Any popular Scottish walk has dozens of user routes with photos, difficulty reports, and recent condition notes. The reviews are mixed quality — some genuinely useful, many “great views!” one-liners — but the sheer quantity makes this the strongest app for “what should I walk near [town]?” browsing.

Komoot

Smaller community content library but higher signal-to-noise ratio — the Komoot user base skews more experienced. “Collections” curated by Komoot pros, ambassadors and partnered tour operators give you themed route sets (“WHW in 7 days”, “Cairngorms gravel loops”) that are reliably good quality.

OS Maps

Community content exists but is not the product's focus. The OS Maps route library is dominated by OS's own editorial picks rather than user contributions. Fine if you just want a verified day walk from an official source; poor if you want to see what's currently popular.

Watch and hardware integration

• OS Maps: Limited. No native Garmin or Apple Watch mapping app. Can export GPX to Garmin devices via Garmin Connect.
• Komoot: Excellent. Native Apple Watch app with turn-by-turn. Native Garmin Connect IQ app for Fenix, Epix, Edge and Forerunner devices. The best integrated experience for watch users.
• AllTrails: Apple Watch app for Pro subscribers. Limited Garmin support.

If you're running a Garmin Fenix on the hill and want to see your mapping on the watch itself, Komoot is the only serious option. OS Maps works fine on your phone but won't appear on your wrist.

Head-to-head: the three pairings

The full comparison above covers everything, but if you've already narrowed it to two apps, here are the direct verdicts.

OS Maps vs Komoot

For on-the-hill navigation in Scotland, OS Maps wins — it's the actual Ordnance Survey 1:25k/1:50k data with 10m contours, accurate hill paths and native grid references. For route planning and cross-activity use (hike plus gravel plus cycle), Komoot wins — the best planning UX in the category and superb Garmin/Apple Watch integration. The catch since early 2025 is cost: Komoot is subscription-only for new users (£4.99/month or £59.99/year), so running both means paying for two apps. Most walkers are better off with OS Maps plus a paper map, and adding Komoot only if the planning tools or watch mapping genuinely earn the subscription.

OS Maps vs AllTrails

OS Maps is the clear winner for serious Scottish hillwalking. It has authoritative Ordnance Survey terrain detail and grid references; AllTrails runs on OpenStreetMap with lower terrain detail and US-style easy/moderate/hard grades that don't map onto Scottish grade 1–5 or winter II/III. AllTrails only beats OS Maps for one thing: discovering popular walks via its huge community library of user routes, photos and recent condition reports. Use AllTrails to find a walk, OS Maps to navigate it.

Komoot vs AllTrails

Closer, because both are OSM-based. Komoot wins on planning, offline reliability, terrain detail and watch integration, and its smaller community has a higher signal-to-noise ratio. AllTrails wins on raw volume of community content — far more user routes and reviews for popular trails. For Scottish hills specifically, Komoot is the better navigation tool; AllTrails is the better browsing tool for "what's good near me". Neither matches OS Maps for accuracy on remote ground.

Which to pick by use case

The paper map question

None of these apps replaces a paper map on a serious Scottish hill day. Phones fail. Batteries die in winter cold. Screens stop responding in wet gloves. A laminated 1:25,000 OS Explorer sheet(affiliate link) weighs 80 grams and works in any weather for 20 years.

The reasonable Scottish setup is:

• Paper OS map (Explorer 1:25k or Landranger 1:50k) as the failsafe
• OS Maps Premium on phone as the primary digital reference
• Waterproof map case — an Ortlieb or similar(affiliate link) keeps the paper sheet readable in driving rain

This covers every failure mode. Paper doesn't need batteries. OS Maps matches the paper exactly so switching is seamless, and the paper sheet — not a second app subscription — is your real backup when the phone dies. Around £45 the first year and 200 grams total. If you also want route-planning polish or mapping on a Garmin, add Komoot's subscription on top; you don't need it for safety.

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The verdict

If you can only have one app for serious Scottish hillwalking, it's OS Maps Premium — subscribe to OS Maps(affiliate link) and check the current annual price on the day. Nothing else matches Ordnance Survey data for UK mountain terrain, and when conditions go wrong on a Scottish hill, the level of cartographic detail matters.

If you want a second app, the honest backup is a paper OS map, not another subscription — it never runs out of battery and matches OS Maps exactly. Add Komoot (now £4.99/month or £59.99/year for new users, since the one-off World Pack was withdrawn in February 2025) only if you specifically want the best planning UX in the category or mapping on a Garmin or Apple Watch. It is a genuine upgrade for planners and cross-activity users, but it is no longer the cheap buy-once backup that older guides recommend.

AllTrails is a weaker third choice for serious Scottish use but a reasonable free-tier option for browsing popular walks. If you're new to Scottish hillwalking and using the app to pick your first Munro from a list, the AllTrails free tier is a sensible starting point — it won't navigate you off a cliff in a whiteout but it'll tell you which paths the crowds prefer. Graduate to OS Maps Premium once you're walking regularly.

Frequently Asked Questions

What is the best free hiking app for Scotland?

For actually navigating a Scottish hill, none of the free tiers is enough on its own, because all three paywall offline maps. The most useful free option is the OS Maps free tier for casual route viewing plus a paper OS map as the failsafe. If you want free route ideas rather than navigation, AllTrails' free tier is the best browser — it shows a huge library of user routes, photos and recent condition reports for popular walks, though it can't cache maps for no-signal ground. Komoot's free tier lets you plan and follow routes on your phone and gives you one free region map on signup, but new users can no longer buy extra offline maps outright.

Is OS Maps better than Komoot for Scotland?

For pure mapping accuracy and serious Scottish hillwalking, yes — OS Maps is the authoritative source because it uses the actual Ordnance Survey 1:25,000 and 1:50,000 data that paper OS maps are printed from. Komoot uses OpenStreetMap data which is good on roads and popular trails but occasionally misses small Scottish hill paths and has less terrain detail. That said, Komoot has a significantly better route-planning UX and cross-activity support (hike plus cycle plus gravel). Most experienced Scottish hillwalkers use OS Maps as the primary app and Komoot as a backup and planning tool.

Is the OS Maps app free?

The OS Maps app is free to download but the free tier is severely limited — you get basic road maps without the 1:25k or 1:50k Ordnance Survey layers that make the app worth using. OS Maps Premium costs £6.99/month or £34.99/year for new customers (dropping to £28.99/year on renewal), after a 14-day free trial, and unlocks the full Explorer and Landranger mapping, offline download and GPX import/export. For Scottish hillwalking, the Premium tier is essentially required.

Is OS Maps worth paying for?

For serious Scottish hillwalking, yes. OS Maps Premium is £34.99/year for new customers (dropping to £28.99/year on renewal) or £6.99/month, and it unlocks the full 1:25,000 and 1:50,000 Ordnance Survey mapping, offline downloads and GPX import/export. That is the authoritative source data for UK mountains, with accurate hill paths, 10m contours and native OS grid references that Mountain Rescue uses. If you only pay for one app for Scottish hills, this is the one.

Does Komoot work offline in Scotland?

Yes, but only with Komoot Premium if you signed up recently. Maps are downloaded per region (roughly county-sized areas in the UK) and work fully offline once downloaded — no signal required for navigation, route tracking or search within the downloaded region. The catch is that the old one-off “World Pack” that used to unlock every region forever is no longer sold to new users; new accounts need Komoot Premium (£4.99/month or £59.99/year) for offline maps across all regions. Only legacy users who bought a pack before 27 February 2025 keep the buy-once offline access.

Is Komoot still a one-off payment?

No, not for new users. Komoot's one-off “World Pack” — pay once, unlock offline maps for every region forever — was withdrawn for new sign-ups on 27 February 2025 after Bending Spoons acquired the company. New accounts now need Komoot Premium (£4.99/month or £59.99/year) to unlock offline maps for all regions and to sync routes to a Garmin or Apple Watch. Only legacy users who bought a pack before that cutoff keep the old buy-once access, so any guide still recommending the £29.99 World Pack as a cheap one-off is out of date.

Does AllTrails work offline in Scotland?

Only on the paid AllTrails+ tier (£35.99/year or £2.99/month), and only for routes you download in advance. The free tier will not cache maps, so it is unreliable on a no-signal Scottish hill. Even on AllTrails+ you must download the route before you lose signal, and the app has historically been more prone than OS Maps or Komoot to demanding a reconnect at awkward moments. For guaranteed offline reliability on remote ground, OS Maps is the safer choice.

Is AllTrails worth the subscription?

AllTrails+ (£35.99/year or £2.99/month) unlocks offline maps, live location sharing and map layers — the offline download is the part that matters for Scotland, because the free tier won't cache maps for no-signal hills. If you mainly use AllTrails to browse popular walks and want them saved for offline use, it's worth it. For serious Scottish hillwalking, though, the same money is better spent on OS Maps Premium (£34.99/year, £28.99 on renewal) for authoritative Ordnance Survey mapping. Pay for AllTrails+ if community route discovery is your main use; pay for OS Maps if navigation accuracy is.

Is AllTrails accurate in Scotland?

AllTrails coverage is uneven in Scotland. Popular trails (the West Highland Way, Ben Nevis, Glentress, the Fairy Pools on Skye) have dozens of user routes and current condition reports. Remote Corbetts and Grahams often have a single user route from several years ago or no content at all. The underlying map data is OpenStreetMap, not Ordnance Survey, so terrain detail is lower than OS Maps. AllTrails is a useful browsing tool but a weaker primary navigation app for serious Scottish hill days.

Can I use any of these apps instead of a paper map?

No, not on serious Scottish hill days. Phones fail in cold weather, batteries die, wet or iced screens stop responding, and no amount of app functionality survives a dropped phone on a rocky summit. Every experienced Scottish hillwalker carries a paper 1:25k or 1:50k OS map and a proper baseplate compass as a failsafe. The digital app is additional, not a replacement. Mountaineering Scotland's navigation courses teach the paper-and-compass fundamentals.

Komoot vs AllTrails — which is better for Scotland?

For navigating Scottish hills, Komoot is the better of the two: more terrain detail, more reliable offline maps, and far better Garmin and Apple Watch integration. AllTrails wins only on the sheer volume of community-contributed routes, photos and condition reports for popular trails. Both use OpenStreetMap data, so neither matches OS Maps for accuracy on remote ground — but if you're choosing strictly between these two, Komoot for navigation, AllTrails for browsing ideas.

OS Maps vs AllTrails — which should I use for Scottish hills?

OS Maps, clearly, for any serious hillwalking. It renders the authoritative Ordnance Survey 1:25,000 and 1:50,000 mapping with accurate paths, fine contour detail and native grid references that Mountain Rescue uses. AllTrails runs on OpenStreetMap with less terrain detail and American-style difficulty grades. AllTrails is genuinely useful for discovering popular walks through its big community library, but for finding your way on the ground in Scotland, OS Maps is in a different league.

Which app is best for long-distance trails like the West Highland Way?

Komoot is the best for planning long-distance trails — its multi-day itinerary tools, surface-type awareness and elevation profiles are all better than the alternatives. OS Maps is the best for on-day navigation once you're walking. Most WHW walkers use Komoot on their phone at home to plan the schedule and OS Maps (or a paper strip map) on the hill each day. AllTrails has limited long-distance trail support.

Do I need Ordnance Survey maps for the Munros?

Yes. The Ordnance Survey 1:25,000 (Explorer) and 1:50,000 (Landranger) mapping is the standard for UK mountain navigation, and every Munro, Corbett, Graham and Donald appears with full detail on OS mapping. The digital version via OS Maps Premium matches the paper version exactly. If you plan to do more than a handful of Scottish hills, OS Maps Premium is the single most important app purchase you'll make.

Related Articles

• What to Wear Hillwalking in Scotland — the kit that goes with the map
• Your First Munro from Glasgow — which hill to use your new OS Maps Premium on first
• Wild Camping in Scotland: What the Access Code Actually Means — the legal framework for any Scottish walking plan
• West Highland Way Planning Guide — the long-distance trail all three of these apps handle differently
• Best GPS Devices & Navigation Tools for the Scottish Highlands — dedicated GPS hardware compared alongside these apps
• OutdoorSCOT Tools — Route Compare, Gear Checklist Generator and other planning tools

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This article is for informational purposes only and does not constitute professional safety instruction or a formal product review. Pricing and feature comparisons were verified against the operators' own sites in July 2026 and will change. No app on this list is a substitute for winter skills training, a paper map and compass, and the judgement to turn round when conditions close in. OutdoorSCOT is not liable for any incidents arising from the use of this information.

Sources

• OS Maps — Ordnance Survey
• Komoot — Komoot GmbH
• AllTrails — AllTrails Inc.
• Ordnance Survey map styles explained — Ordnance Survey
• Navigation courses — Mountaineering Scotland