# e疆充 vs 数字张掖

The clearest difference is in-app purchases: e疆充 at none against 数字张掖's 17. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 数字张掖 sells 13 one-off in-app purchases. e疆充 asks for nothing beyond the download.

e疆充 ships an update every 7 months, 数字张掖 every 4 months. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | e疆充 | 数字张掖 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Size | 185 MB | 122 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Xinjiang Huataiyichuang New Energy Technology Co., Ltd.](https://appshunter.io/developer/1435040711) | [龙源数字城市(北京)科技有限公司](https://appshunter.io/developer/1484299426) |

## What reviewers say

### e疆充

[App page](https://appshunter.io/ios/app/e/id1435040712)

**Features:** Apple Wallet

**In-app purchases:** none


### 数字张掖

[App page](https://appshunter.io/ios/app/id1577896150)

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6杂志币 | $0.99 | one-time |
| 数字城市会员（月） | $2.99 | one-time |
| 88杂志币 | $12.99 | one-time |
| 198杂志币 | $29.99 | one-time |
| 名刊会会员365天 | $29.99 | one-time |
| 数字城市会员（年） | $29.99 | one-time |
| 288杂志币 | $39.99 | one-time |
| 288杂志币 | $45.99 | one-time |
| 388杂志币 | $59.99 | one-time |
| 数字城市会员365天 | $59.99 | one-time |
| 588杂志币 | $79.99 | one-time |
| 588杂志币 | $89.99 | one-time |
| 读书会会员 | $299.99 | one-time |


## Frequently asked questions

### Is e疆充 free?

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

### Is 数字张掖 free?

数字张掖 is free to download, with in-app purchases available.

### Do e疆充 or 数字张掖 have ads?

Neither e疆充 nor 数字张掖 shows ads.

### Which is updated more often, e疆充 or 数字张掖?

e疆充 ships an update every 7 months, and 数字张掖 every 4 months. Most recently, e疆充 was updated on October 20, 2026 and 数字张掖 on October 14, 2026.

---

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