# Ace Referee vs Mountain Project

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

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.

## The numbers

| Metric | Ace Referee | Mountain Project |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/ace-referee/id427115949/reviews) | **[4.6 (4.6K ratings)](https://appshunter.io/ios/app/mountain-project/id452308783/reviews)** |
| Number of ratings | 2 | **4.6K** |
| Positive reviews | **100.0% of reviews** | 41.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 12 MB | 79 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SoftCP Inc.](https://appshunter.io/developer/427115952) | [Adventure Projects Inc.](https://appshunter.io/developer/452308787) |

## What reviewers say

### Ace Referee

[App page](https://appshunter.io/ios/app/ace-referee/id427115949)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Mountain Project

[App page](https://appshunter.io/ios/app/mountain-project/id452308783)

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:** macOS Compatibility, iMessage stickers, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🗺️ Extensive database of climbing routes
- 📚 Detailed route information and beta
- 🗺️ Offline access to downloaded areas
- 👥 Helpful community contributions
- 📸 Useful photos and visuals

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🗺️ Inaccurate or outdated map information
- 🔍 Inefficient search and navigation
- 💰 Excessive advertising and promotion of other apps
- 📝 Inability to add comments or photos from the app

**Reported bugs**

- 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**

- 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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*