Comparison

Mountain Project vs Probly

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

Head to head
About

Mountain Project

Discover and navigate to outdoor climbing areas, and find specific routes with detailed filters. Access route beta, photos, and topos offline, and view climbing area statistics. Connect with other climbers in the forum, track your progress, and create to-do lists.

Highlights
  • Find and navigate to climbing areas
  • Sort routes by discipline, difficulty, and rating
  • Search 155,000+ climbing routes offline
  • Download route beta, photos, and topos for offline use
  • View climbing area route statistics and critical info
  • Connect with climbers in the forum
  • Track attempts, sends, and create to-do lists
Features
Read full description

Beyond the Guidebook: The Definitive Rock Climbing Resource. • Find outdoor climbing areas near you, and navigate to them, using the map. This super-handy new feature is one of our personal faves. • The much requested route finder: Easily sort routes by discipline, difficulty, star ranking and more. If a 4-star M9 is your thing, we'll help you find it. • Search our entire database of 155,000+ climbing routes, even offline. • Download route beta, photos, and topos state by state for offline use — because the best crags often have the worst reception. • View a climbing area’s route stats (how many 5.11s are there?) and critical info (when is the raptor closure again?) in a single glance. • Chat, ask questions, or put out a call for partners in our forum. • Rate routes and photos, keep track of attempts & sends, or make a to-do list • It's free to download and free of advertising too. Everything you need, nothing you don't.

About

Probly

Features
Read full description

Your home wall deserves its own app. You built the wall. You set the problems. You text your crew when there's something new. Probly replaces all of that with one place - problems documented on actual photos of your wall, a private feed for your crew, and a history that survives every reset. SET PROBLEMS IN SECONDS Tap directly on your wall photo to mark the holds. Set the grade. Done. No descriptions, no tape legend, no "wait, which sloper is the start?" Adding a new problem takes seconds - so you'll actually do it. YOUR WALL'S OWN COMMUNITY Invite the people who climb on your wall. They can add problems, log sends, and comment on routes - all in a private feed that belongs to your wall. Not a public platform. Just your crew. RESETS DON'T ERASE HISTORY Upload a new wall photo when you move holds or add volumes. All your old problems stay intact. Your wall evolves; your history doesn't disappear. WORKS ON ANY WALL Garage woody, spray wall, slab, steep board - if you can photograph it, Probly works on it. No specialized hardware required. FREE TO START Add your wall and up to 10 problems at no cost. Unlimited problems and multiple walls are $1/month - less than any other climbing app. FEATURES - Tap-to-place hold marking on real wall photos - Private activity feed per wall - Invite and manage your climbing crew - Upload new wall photos without losing old problems - Multiple walls, each with their own crew ($1/month) Terms of use: https://www.abiv.work/probly-terms-and-conditions

Screenshots

Mountain Project4 screens
Probly3 screens

Verdict

The call

The clearest difference is in-app purchases: Mountain Project at none against Probly's 2. Mountain Project also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, 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. Probly sells 2 in-app purchases, starting at $2.99 per month. Mountain Project asks for nothing beyond the download.

UpkeepUpdate frequency

Mountain Project ships an update every 3 weeks, Probly every 2 months. The most recent releases landed on October 16, 2026 and July 18, 2026 respectively.

Scorecard2 real differences · 8 level
Mountain Project versus Probly: the parameters behind the verdict, then further details
ParameterMountain ProjectProbly
PriceFreeFree
Rating4.6 (4.6K ratings) — better—
Positive reviews35.8% of reviews—
Number of ratings4.6K — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size79 MB37 MB
Age rating4+4+
DeveloperAdventure Projects Inc.Arthur Beisang

Bugs and requests

Mountain Project

Reported bugs

5 issues
  • App crashes when opening routes or areas
  • Map not showing all available climbs
  • Incorrect date recording for ticks
  • Inability to delete downloaded areas
  • Login issues and account sync problems

Requested features

5 requests
  • Add ability to add/update routes and areas
  • Implement better offline map functionality
  • Improve search and filtering options
  • Add user profile and route tracking features
  • Enhance community engagement tools

Probly

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Mountain Project

No in-app purchases

2 purchases

Probly

Subscriptions2
  • Monthly$2.991 Month
  • Yearly$24.991 Year

Questions

Is Mountain Project free?
Mountain Project is free to download, with no in-app purchases.
Is Probly free?
Probly is free to download, with in-app purchases available.
Do Mountain Project or Probly have ads?
Neither Mountain Project nor Probly shows ads.
Which is updated more often, Mountain Project or Probly?
Mountain Project ships an update every 3 weeks, and Probly every 2 months. Most recently, Mountain Project was updated on October 16, 2026 and Probly on July 18, 2026.

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