# Lapis 公式アプリ vs LSClock

The clearest difference is ads: Lapis 公式アプリ at none against LSClock's shown. Lapis 公式アプリ also leads on iOS requirement (12.0 vs 18.0). LSClock's advantage is update cadence (every 2 days vs every 35 months). On price, 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.

Lapis 公式アプリ ships an update every 35 months, LSClock every 2 days. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Lapis 公式アプリ | LSClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 35 months | **Every 2 days** |
| Size | 15 MB | 7 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JUN TANAKA](https://appshunter.io/developer/1490075932) | [RYOYA GOJO](https://appshunter.io/developer/1868880653) |

## What reviewers say

### Lapis 公式アプリ

[App page](https://appshunter.io/ios/app/lapis/id1490075933)

**In-app purchases:** none


### LSClock

[App page](https://appshunter.io/ios/app/lsclock-silenttimeralarm/id6757867773)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lapis 公式アプリ free?

Lapis 公式アプリ is free to download, with no in-app purchases.

### Is LSClock free?

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

### Do Lapis 公式アプリ or LSClock have ads?

LSClock shows ads; Lapis 公式アプリ does not.

### Which is updated more often, Lapis 公式アプリ or LSClock?

Lapis 公式アプリ ships an update every 35 months, and LSClock every 2 days. Most recently, Lapis 公式アプリ was updated on October 10, 2026 and LSClock on October 24, 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.*