# e共照網 vs iProtin

The clearest difference is iOS requirement: e共照網 at 13.0 against iProtin's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

e共照網 ships an update monthly, iProtin every 2 weeks. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | e共照網 | iProtin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 25 MB | 43 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Mesdax International Co., Ltd](https://appshunter.io/developer/1246111655) | [tst biomedical electronics Company Limited](https://appshunter.io/developer/1722982362) |

## What reviewers say

### e共照網

[App page](https://appshunter.io/ios/app/e/id1621285981)

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

**In-app purchases:** none


### iProtin

[App page](https://appshunter.io/ios/app/iprotin/id6737819780)

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

**In-app purchases:** none


## Frequently asked questions

### Is e共照網 free?

e共照網 is free to download, with no in-app purchases.

### Is iProtin free?

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

### Do e共照網 or iProtin have ads?

Neither e共照網 nor iProtin shows ads.

### Which is updated more often, e共照網 or iProtin?

e共照網 ships an update monthly, and iProtin every 2 weeks. Most recently, e共照網 was updated on October 6, 2026 and iProtin on October 1, 2026.

---

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