# 墨水屏胸卡 vs eTag Assistant

The clearest difference is update cadence: eTag Assistant at every 6 days against 墨水屏胸卡's every 7 months. 墨水屏胸卡's advantage is iOS requirement (12.0 vs 15.0). On price, ads, 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.

墨水屏胸卡 ships an update every 7 months, eTag Assistant every 6 days. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 墨水屏胸卡 | eTag Assistant |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 days** |
| Size | 56 MB | 98 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bupin Electronics Technology Co.,Ltd.](https://appshunter.io/developer/1594833200) | [PAVO Technology Co., Ltd.](https://appshunter.io/developer/1858483486) |

## What reviewers say

### 墨水屏胸卡

[App page](https://appshunter.io/ios/app/id6746151561)

**Features:** macOS Compatibility

**In-app purchases:** none


### eTag Assistant

[App page](https://appshunter.io/ios/app/etag-assistant/id6756094402)

**In-app purchases:** none


## Frequently asked questions

### Is 墨水屏胸卡 free?

墨水屏胸卡 is free to download, with no in-app purchases.

### Is eTag Assistant free?

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

### Do 墨水屏胸卡 or eTag Assistant have ads?

Neither 墨水屏胸卡 nor eTag Assistant shows ads.

### Which is updated more often, 墨水屏胸卡 or eTag Assistant?

墨水屏胸卡 ships an update every 7 months, and eTag Assistant every 6 days. Most recently, 墨水屏胸卡 was updated on October 5, 2026 and eTag Assistant on October 25, 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.*