# 臺北榮民總醫院孝威館 vs 凱琳

The clearest difference is in-app purchases: 臺北榮民總醫院孝威館 at none against 凱琳's 2. 臺北榮民總醫院孝威館 also leads on iOS requirement (15.0 vs 17.0). 凱琳's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. 凱琳 sells 2 in-app purchases, starting at $5.99 per month. 臺北榮民總醫院孝威館 asks for nothing beyond the download.

臺北榮民總醫院孝威館 ships an update every 5 months, 凱琳 every 2 weeks. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 臺北榮民總醫院孝威館 | 凱琳 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 50 MB | 65 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eternal W Technology Co., Ltd.](https://appshunter.io/developer/1485685478) | [Chin YU XUAN](https://appshunter.io/developer/6781631336) |

## What reviewers say

### 臺北榮民總醫院孝威館

[App page](https://appshunter.io/ios/app/id6474468237)

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

**In-app purchases:** none


### 凱琳

[App page](https://appshunter.io/ios/app/id6804378115)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 凱琳會員 | $5.99 | per month |
| 凱琳會員（年繳） | $39.99 | per year |


## Frequently asked questions

### Is 臺北榮民總醫院孝威館 free?

臺北榮民總醫院孝威館 is free to download, with no in-app purchases.

### Is 凱琳 free?

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

### Do 臺北榮民總醫院孝威館 or 凱琳 have ads?

Neither 臺北榮民總醫院孝威館 nor 凱琳 shows ads.

### Which is updated more often, 臺北榮民總醫院孝威館 or 凱琳?

臺北榮民總醫院孝威館 ships an update every 5 months, and 凱琳 every 2 weeks. Most recently, 臺北榮民總醫院孝威館 was updated on October 24, 2026 and 凱琳 on October 19, 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.*