# LANZOOM S3 vs Micro Clock

The clearest difference is in-app purchases: LANZOOM S3 at none against Micro Clock's 1. LANZOOM S3 also leads on iOS requirement (9.0 vs 15.0). Micro Clock's advantage is update cadence (every 9 days vs every 3 months). On price, ads and device support there is nothing between them.

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

LANZOOM S3 ships an update every 3 months, Micro Clock every 9 days. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | LANZOOM S3 | Micro Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Size | 27 MB | 6 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xiamen ZStime Co., Ltd.](https://appshunter.io/developer/374142269) | [俊贤 黄](https://appshunter.io/developer/1889807845) |

## What reviewers say

### LANZOOM S3

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Micro Clock

[App page](https://appshunter.io/ios/app/micro-clock-floating-timer/id6762129008)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Micro Clock Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is LANZOOM S3 free?

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

### Is Micro Clock free?

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

### Do LANZOOM S3 or Micro Clock have ads?

Neither LANZOOM S3 nor Micro Clock shows ads.

### Which is updated more often, LANZOOM S3 or Micro Clock?

LANZOOM S3 ships an update every 3 months, and Micro Clock every 9 days. Most recently, LANZOOM S3 was updated on October 14, 2026 and Micro Clock on October 8, 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.*