Comparison

Ace Referee vs Mountain Project

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

Head to head
About

Ace Referee

This app assists referees in handball, racquetball, squash, and RoundNet by tracking scores, servers, and timeouts. It offers live score updates for spectators and integrates with tournament software for seamless data management.

Highlights
  • Score tracking
  • Server management
  • Timeout tracking
  • Live score updates for spectators
  • Integration with tournament software
  • Barcode scanning for match data
Features
Read full description

Ace Referee is a companion app for handball, racquetball, squash and now RoundNet/SpikeBall referees. It can be used in stand-alone mode or in conjunction with the Bracket Ace tournament software. Ace Referee eliminates the referee's need for pencil and paper. It keeps track of score, server and timeouts on your iPhone, iPad or the Apple Watch. The Apple Watch version allows you to score a game locally or take over a match from the iPhone. All referee features available in the iOS version including the live scoring feature. Ace Referee's live score feature allows spectators to view real-time score updates for any match where the referee is using the app. Via the view scores screen users can simultaneously monitor match scores on both the iPhone and iPad. When Ace Referee is used in conjunction with the Bracket Ace tournament app, all ongoing tournament match scores can be displayed simultaneously, users can jump to the event in the Bracket Ace app, and live video or other media can be displayed when made available by the tournament hosts. Ace Referee can be launched by other apps such as Bracket Ace so that the match data is populated automatically for the referee. Ace Referee can also scan a barcode on a Bracket Ace scorecard. All match data will be populated and the match result will be reported to Bracket Ace.

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.

Screenshots

Ace Referee1 screens
Mountain Project4 screens

Verdict

The call

Ace Referee and Mountain Project both sit at 4.5 stars, but that hides the real split: 100% of Ace Referee's written reviews are positive against 41% of Mountain Project's. Ace Referee also leads on device support (4 vs 2) and iOS requirement (13.0 vs 16.0). Mountain Project's advantage is ratings volume (4.6K vs 2). On price, rating, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Ace Referee against 4.6 for Mountain Project. That said, the two scores are not equally well evidenced: Mountain Project has 4.6K ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 100% of Ace Referee's written reviews are positive against 41% of Mountain Project's.

UpkeepUpdate frequency

Ace Referee ships an update every 6 weeks, Mountain Project every 3 weeks. The most recent releases landed on September 10, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
Ace Referee versus Mountain Project: the parameters behind the verdict, then further details
ParameterAce RefereeMountain Project
PriceFreeFree
Rating4.5 (2 ratings)4.6 (4.6K ratings) — better
Positive reviews100.0% of reviews — better41.1% of reviews
Number of ratings24.6K — better
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size12 MB79 MB
Age rating4+4+
DeveloperSoftCP Inc.Adventure Projects Inc.

Customer experience

Ace Referee

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Mountain Project

All ratings4,557 ratings
Positive89.4%
Neutral3.0%
Negative7.6%
Written reviews207 reviews
Positive41.1%
Neutral12.6%
Negative46.4%

Bugs and requests

Ace Referee

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Ace Referee

No in-app purchases

None

Mountain Project

No in-app purchases

Questions

Is Ace Referee free?
Ace Referee is free to download, with no in-app purchases.
Is Mountain Project free?
Mountain Project is free to download, with no in-app purchases.
Which has better reviews, Ace Referee or Mountain Project?
Mountain Project is rated higher. Ace Referee averages 4.5 out of 5 from 2 ratings, while Mountain Project averages 4.6 from 4.6K ratings.
Do Ace Referee or Mountain Project have ads?
Neither Ace Referee nor Mountain Project shows ads.
Which is updated more often, Ace Referee or Mountain Project?
Ace Referee ships an update every 6 weeks, and Mountain Project every 3 weeks. Most recently, Ace Referee was updated on September 10, 2026 and Mountain Project on September 24, 2026.

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