# Twinkle Clock vs 日軌 Log

The clearest difference is in-app purchases: 日軌 Log at none against Twinkle Clock's 1. 日軌 Log also leads on update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Twinkle Clock sells 1 one-off in-app purchase. 日軌 Log asks for nothing beyond the download.

Twinkle Clock ships an update every 3 weeks, 日軌 Log every 5 days. The most recent releases landed on October 27, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Twinkle Clock | 日軌 Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 23 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyasu Hirai](https://appshunter.io/developer/455568461) | [Bobby Wang](https://appshunter.io/developer/1820221009) |

## What reviewers say

### Twinkle Clock

[App page](https://appshunter.io/ios/app/twinkle-clock/id6467501688)

**Features:** iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Twinkle Clock Pro | $24.99 | one-time |


### 日軌 Log

[App page](https://appshunter.io/ios/app/log/id6780106762)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Twinkle Clock free?

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

### Is 日軌 Log free?

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

### Do Twinkle Clock or 日軌 Log have ads?

Neither Twinkle Clock nor 日軌 Log shows ads.

### Which is updated more often, Twinkle Clock or 日軌 Log?

Twinkle Clock ships an update every 3 weeks, and 日軌 Log every 5 days. Most recently, Twinkle Clock was updated on October 27, 2026 and 日軌 Log on October 7, 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.*