# i江油 vs 数字沧州

The clearest difference is in-app purchases: i江油 at none against 数字沧州's 17. i江油 also leads on update cadence (monthly vs every 2 months) and iOS requirement (10.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. 数字沧州 sells 13 one-off in-app purchases. i江油 asks for nothing beyond the download.

i江油 ships an update monthly, 数字沧州 every 2 months. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | i江油 | 数字沧州 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 69 MB | 129 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Sichuan Kexun Network Technology Co., Ltd](https://appshunter.io/developer/1232098069) | [龙源数字城市(北京)科技有限公司](https://appshunter.io/developer/1484299426) |

## What reviewers say

### i江油

[App page](https://appshunter.io/ios/app/i/id1519919432)

**In-app purchases:** none


### 数字沧州

[App page](https://appshunter.io/ios/app/id1574154708)

**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 i江油 free?

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

### Is 数字沧州 free?

数字沧州 is free to download, with in-app purchases available.

### Do i江油 or 数字沧州 have ads?

Neither i江油 nor 数字沧州 shows ads.

### Which is updated more often, i江油 or 数字沧州?

i江油 ships an update monthly, and 数字沧州 every 2 months. Most recently, i江油 was updated on September 25, 2026 and 数字沧州 on September 20, 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.*