# 留己看 vs DotTrail

The clearest difference is in-app purchases: DotTrail at none against 留己看's 3. DotTrail also leads on update cadence (daily vs weekly). 留己看's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. 留己看 sells 3 in-app purchases, starting at $1.99 per month. DotTrail asks for nothing beyond the download.

留己看 ships an update weekly, DotTrail daily. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 留己看 | DotTrail |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Daily** |
| Size | 32 MB | 7 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CHENYU CHUANG](https://appshunter.io/developer/6787609934) | [SHU-CHIH LIN](https://appshunter.io/developer/6809671847) |

## What reviewers say

### 留己看

[App page](https://appshunter.io/ios/app/id6787609932)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 留己看 PRO 月繳 | $1.99 | per month |
| 留己看 PRO 年繳 | $14.99 | per year |
| 留己看 PRO 永久 | $29.99 | one-time |


### DotTrail

[App page](https://appshunter.io/ios/app/dottrail/id6809820649)

**In-app purchases:** none


## Frequently asked questions

### Is 留己看 free?

留己看 is free to download, with in-app purchases available.

### Is DotTrail free?

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

### Do 留己看 or DotTrail have ads?

DotTrail shows ads; 留己看 does not.

### Which is updated more often, 留己看 or DotTrail?

留己看 ships an update weekly, and DotTrail daily. Most recently, 留己看 was updated on October 19, 2026 and DotTrail on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*