# Boulder Log vs Callus

The clearest difference is in-app purchases: Boulder Log at none against Callus's 1. Boulder Log also leads on update cadence (every 11 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Callus sells 1 in-app purchase, starting at $2.99 per month. Boulder Log asks for nothing beyond the download.

Boulder Log ships an update every 11 days, Callus every 3 weeks. Both last shipped on October 12, 2026.

## The numbers

| Metric | Boulder Log | Callus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/boulder-log-climb-tracker/id6773972549/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 10 MB | 72 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [MAXWELL WILLIAM LEMASTERS](https://appshunter.io/developer/6773972551) | [Phong Davis Nguyen](https://appshunter.io/developer/1712387006) |

## What reviewers say

### Boulder Log

[App page](https://appshunter.io/ios/app/boulder-log-climb-tracker/id6773972549)

Easily track your bouldering sessions with this intuitive log. Record climbs with essential details or add more depth with notes and attempts. Review your progress, view grade breakdowns, and celebrate milestones.

**Highlights:** Log bouldering sessions live or manually, Track sends, flashes, attempts, and projects, Save grades, notes, and tags, Support for V-scale and Font scale, Review session history and best grades, View progress and grade breakdowns, Earn climbing milestones

**In-app purchases:** none


### Callus

[App page](https://appshunter.io/ios/app/callus-climbing-log/id6776736020)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Callus Membership | $2.99 | per month |


## Frequently asked questions

### Is Boulder Log free?

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

### Is Callus free?

Callus is free to download, with in-app purchases available.

### Do Boulder Log or Callus have ads?

Neither Boulder Log nor Callus shows ads.

### Which is updated more often, Boulder Log or Callus?

Boulder Log ships an update every 11 days, and Callus every 3 weeks. Most recently, Boulder Log was updated on October 12, 2026 and Callus on October 12, 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.*