# Mountain Project vs SlabLab

The clearest difference is review sentiment: SlabLab at 100% against Mountain Project's 41%. SlabLab also leads on rating (5.0 vs 4.6). Mountain Project's advantage is ratings volume (4.6K vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

SlabLab holds the better App Store score, 5.0 against 4.6. 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 point the same way: 41% of Mountain Project's written reviews are positive against 100% of SlabLab's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 24, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Mountain Project | SlabLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (4.6K ratings)](https://appshunter.io/ios/app/mountain-project/id452308783/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/slablab/id6751992037/reviews)** |
| Number of ratings | **4.6K** | 2 |
| Positive reviews | 41.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 79 MB | 40 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Adventure Projects Inc.](https://appshunter.io/developer/452308787) | [SlabLab LLC](https://appshunter.io/developer/1837818376) |

## What reviewers say

### 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


### SlabLab

[App page](https://appshunter.io/ios/app/slablab/id6751992037)

Connect with fellow backcountry enthusiasts for safer adventures. Find compatible partners, enhance your skills with pro-led workshops, and join discussions to improve teamwork and decision-making in the snow.

**Highlights:** Find backcountry partners, Pro-led skill-building workshops, Teamwork and decision-making focus, Q&A with experts and peers, Discounts on gear and experiences, Community discussions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mountain Project free?

Mountain Project is free to download, with no in-app purchases.

### Is SlabLab free?

SlabLab is free to download, with no in-app purchases.

### Which has better reviews, Mountain Project or SlabLab?

SlabLab is rated higher. Mountain Project averages 4.6 out of 5 from 4.6K ratings, while SlabLab averages 5.0 from 2 ratings.

### Do Mountain Project or SlabLab have ads?

Neither Mountain Project nor SlabLab shows ads.

### Which is updated more often, Mountain Project or SlabLab?

Mountain Project ships an update every 3 weeks, and SlabLab every 3 weeks. Most recently, Mountain Project was updated on September 24, 2026 and SlabLab on June 4, 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.*