# TPASS.calc vs 留己看

The clearest difference is in-app purchases: TPASS.calc at none against 留己看's 3. TPASS.calc also leads on update cadence (every 2 days vs every 6 days). 留己看's advantage is iOS requirement (15.0 vs 18.0). On price, ads 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. TPASS.calc asks for nothing beyond the download.

TPASS.calc ships an update every 2 days, 留己看 every 6 days. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | TPASS.calc | 留己看 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 days |
| Size | 87 MB | 32 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHENG RUEI HSU](https://appshunter.io/developer/1871371578) | [CHENYU CHUANG](https://appshunter.io/developer/6787609934) |

## What reviewers say

### TPASS.calc

[App page](https://appshunter.io/ios/app/tpasscalc/id6758194196)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is TPASS.calc free?

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

### Is 留己看 free?

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

### Do TPASS.calc or 留己看 have ads?

Neither TPASS.calc nor 留己看 shows ads.

### Which is updated more often, TPASS.calc or 留己看?

TPASS.calc ships an update every 2 days, and 留己看 every 6 days. Most recently, TPASS.calc was updated on November 13, 2026 and 留己看 on November 5, 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.*