Comparison

Mountain vs Whumpf

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mountain

Provides detailed weather forecasts for over 11,000 mountain summits globally. Offers hourly and long-range predictions, multi-elevation weather data, and offline map access for planning outdoor adventures.

Highlights
  • Free 6-day forecasts
  • Weather at multiple elevations
  • Hour-by-hour weather detail
  • Offline maps and forecasts
  • Detailed topographic and satellite mapping
  • Import GPX routes
Features
Read full description

For over 20 years, Mountain-Forecast.com has been the go-to weather service for mountain enthusiasts, offering reliable forecasts for more than 11,000 summits worldwide.
 From Mount Rainier to Mount Fuji, climbers, skiers, snowboarders, mountain bikers, and hikers count on our accurate mountain forecasts to plan everything from casual day trips to major expeditions. Why choose the Mountain Forecast App? - Weather at multiple elevations - Long-range 16-day forecasts* - Hour-by-hour weather detail - Four forecast updates per day - Detailed topographic and satellite mapping - NEW: offline maps and forecasts* - Import GPX routes *MountainPro features, available to subscribers (who also offer ad-free web browsing of the mountain-forecast.com website) Offline Access: Download forecasts and topographic maps without an internet connection so you’re always prepared. “A must-have app for anyone who spends time in the mountains. The forecasts for different elevations are critical for both planning and when I’m out climbing. The best mountain weather app out there!” Leigh Strong (USA) Please remember that mountain weather is unpredictable; always combine our forecasts with your on-the-spot observations and other sources. Venture safely with Mountain-Forecast.com as your essential mountain weather guide. -- Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Whumpf

Read full description

Whumpf puts the avalanche forecast for every zone you care about on one screen, side by side, with the weather to check it against. When you've picked where to go, Heading Out leaves a trip plan with the people at home and reminds them if you don't check in. COMPARE ZONES ACROSS CENTERS - Pick zones from any Alaska avalanche center and see the danger at all three elevation bands next to each other. From Anchorage that means Hatcher Pass, Turnagain and Valdez at a glance. - Avalanche problems with their likelihood, size, and the aspects and elevations they're on, plus the forecaster's bottom line. - Nearby weather stations and SNOTEL sites: temperature, wind and gusts, new snow and water content over 24 or 72 hours, next to the NWS point forecast. - Recent field observations from the center for each zone. - Page back through the last few days to see how the picture changed. THE FORECAST, EVERY MORNING - Each morning you get a notification for each of your saved zones with the danger at all three elevation bands and a line of station weather. - The full forecast downloads with the notification, even if the app was closed, so it's already on your phone when you lose service at the trailhead. - Your saved zones are stored on your phone and refreshed in the background. HEADING OUT: LEAVE A TRIP PLAN Before you go, Whumpf builds the trip plan a search and rescue team asks for: where you parked, with a map pin; your route and backup plans; who's in the party; what you're wearing and carrying; your vehicle; your satellite messenger's share page; and medical details. - Fill in your profile once and every plan after that is prefilled. Pick the area, set your times, choose your contacts, send. - Your contacts get a link to a page that opens on any phone, no app needed, with everything in the order a rescuer will ask for it and who to call. - Set a back-by time and a worry-by time. If you haven't checked in by then, Whumpf emails your contacts and calls them with an automated message. - Running late? A contact can push the worry-by time back from the page. Whoever hears from you, or calls for help, marks it there and the other contacts see it. - Optional: share your live location with those contacts for that trip only. It stops when you check in, and the trail is deleted with the plan. - Check in with one tap when you're back. FILE AN OBSERVATION Write up what you saw in the field, with photos and the location, and send it to your avalanche center through the center's own form, filled in with what you wrote where the form allows. Or email it with a PDF copy and your photos, or just keep the PDF. No account, no sign-in, free. Forecast data comes from the National Avalanche Center and its member centers. Always read the full forecast from your local avalanche center before making travel decisions. Whumpf does not replace the source forecast. It never contacts rescuers itself: your contacts decide when to call, and their page tells them how. Whumpf is the sound a collapsing weak layer makes underfoot: one of the clearest signs the snowpack is unstable.

Screenshots

Mountain4 screens
Whumpf4 screens

Verdict

The call

The clearest difference is in-app purchases: Whumpf at none against Mountain's 2. Whumpf also leads on ads (none vs shown) and update cadence (every 5 days vs every 2 months). Mountain's advantage is chart position (#74 vs unranked). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mountain sells 2 in-app purchases, starting at $3.99 per month. Whumpf asks for nothing beyond the download.

UpkeepUpdate frequency

Mountain ships an update every 2 months, Whumpf every 5 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 7 level
Mountain versus Whumpf: the parameters behind the verdict, then further details
ParameterMountainWhumpf
PriceFreeFree
Rating4.9 (831 ratings) — better—
Positive reviews73.8% of reviews—
Number of ratings831 — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#74 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size128 MB43 MB
Age rating4+4+
DeveloperMeteo365 Ltd.Kai Myers

Bugs and requests

Mountain

Reported bugs

7 issues
  • App crashes after 4 seconds of use
  • Forecast table data misalignment (temperature shows with wrong icons)
  • Password reset not accepting new passwords
  • Freezing level data appears in humidity column
  • 12-day forecast non-functional at mid-low elevations
Show 2 more
  • Minimum temperature missing from recent update
  • Graph data not lining up with forecast information

Requested features

6 requests
  • Imperial and metric unit switching
  • GPS track recording capability
  • Past weather data/history viewing
  • Better search functionality for minor peaks and ridges
  • Restore minimum temperature display
Show 1 more
  • 12-day forecast for all elevation settings

Whumpf

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Mountain

Subscriptions2
  • Premium Service (Monthly)$3.991 Month
  • Premium Service (Yearly)$24.991 Year
None

Whumpf

No in-app purchases

Questions

Is Mountain free?
Mountain is free to download, with in-app purchases available.
Is Whumpf free?
Whumpf is free to download, with no in-app purchases.
Do Mountain or Whumpf have ads?
Mountain shows ads; Whumpf does not.
Which is updated more often, Mountain or Whumpf?
Mountain ships an update every 2 months, and Whumpf every 5 days. Most recently, Mountain was updated on October 27, 2026 and Whumpf on October 28, 2026.

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