# LANZOOM S3 vs ProClimb

The clearest difference is update cadence: ProClimb at every 4 days against LANZOOM S3's every 3 months. LANZOOM S3's advantage is iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

LANZOOM S3 ships an update every 3 months, ProClimb every 4 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LANZOOM S3 | ProClimb |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 27 MB | 1 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xiamen ZStime Co., Ltd.](https://appshunter.io/developer/374142269) | [涛 李](https://appshunter.io/developer/1858273276) |

## What reviewers say

### LANZOOM S3

[App page](https://appshunter.io/ios/app/lanzoom-s3/id1440568825)

**Features:** macOS Compatibility

**In-app purchases:** none


### ProClimb

[App page](https://appshunter.io/ios/app/proclimb-professional-compass/id6757352894)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LANZOOM S3 free?

LANZOOM S3 is free to download, with no in-app purchases.

### Is ProClimb free?

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

### Do LANZOOM S3 or ProClimb have ads?

Neither LANZOOM S3 nor ProClimb shows ads.

### Which is updated more often, LANZOOM S3 or ProClimb?

LANZOOM S3 ships an update every 3 months, and ProClimb every 4 days. Most recently, LANZOOM S3 was updated on November 2, 2026 and ProClimb on October 31, 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.*