# Rocksy vs Lezec Logbook

The clearest difference is in-app purchases: Rocksy at none against Lezec Logbook's 3. Lezec Logbook's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Lezec Logbook sells 3 one-off in-app purchases. Rocksy asks for nothing beyond the download.

Rocksy ships an update every 3 weeks, Lezec Logbook monthly. The most recent releases landed on March 3, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Rocksy | Lezec Logbook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 2 MB | 65 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jakub Kulhavy](https://appshunter.io/developer/1707917117) | [Toma Kuhn](https://appshunter.io/developer/1802020696) |

## What reviewers say

### Rocksy

[App page](https://appshunter.io/ios/app/rocksy/id6467138228)

**In-app purchases:** none


### Lezec Logbook

[App page](https://appshunter.io/ios/app/lezec-logbook/id6743238793)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One beer | $1.99 | one-time |
| Two beers | $3.99 | one-time |
| Three beers | $5.99 | one-time |


## Frequently asked questions

### Is Rocksy free?

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

### Is Lezec Logbook free?

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

### Do Rocksy or Lezec Logbook have ads?

Neither Rocksy nor Lezec Logbook shows ads.

### Which is updated more often, Rocksy or Lezec Logbook?

Rocksy ships an update every 3 weeks, and Lezec Logbook monthly. Most recently, Rocksy was updated on March 3, 2026 and Lezec Logbook on September 20, 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.*