# LANZOOM S3 vs Cool Ukiyo

The clearest difference is in-app purchases: LANZOOM S3 at none against Cool Ukiyo's 1. LANZOOM S3 also leads on ads (none vs shown) and iOS requirement (9.0 vs 12.0). Cool Ukiyo's advantage is update cadence (monthly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Cool Ukiyo sells 1 one-off in-app purchase. LANZOOM S3 asks for nothing beyond the download.

LANZOOM S3 ships an update every 3 months, Cool Ukiyo monthly. The most recent releases landed on October 26, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | LANZOOM S3 | Cool Ukiyo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Size | 27 MB | 53 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xiamen ZStime Co., Ltd.](https://appshunter.io/developer/374142269) | [Mihoko Araki](https://appshunter.io/developer/1476136915) |

## What reviewers say

### LANZOOM S3

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Cool Ukiyo

[App page](https://appshunter.io/ios/app/cool-ukiyo-e-clock/id6503263276)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cool Ukiyo-e Clock with no ads | $3.99 | one-time |


## Frequently asked questions

### Is LANZOOM S3 free?

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

### Is Cool Ukiyo free?

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

### Do LANZOOM S3 or Cool Ukiyo have ads?

Cool Ukiyo shows ads; LANZOOM S3 does not.

### Which is updated more often, LANZOOM S3 or Cool Ukiyo?

LANZOOM S3 ships an update every 3 months, and Cool Ukiyo monthly. Most recently, LANZOOM S3 was updated on October 26, 2026 and Cool Ukiyo on October 13, 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.*