# 石油天然气司钻作业题库 vs 栋梁e学

The clearest difference is in-app purchases: 栋梁e学 at none against 石油天然气司钻作业题库's 10. 栋梁e学 also leads on update cadence (every 2 months vs every 5 months) and iOS requirement (10.3 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. 石油天然气司钻作业题库 sells 10 one-off in-app purchases. 栋梁e学 asks for nothing beyond the download.

石油天然气司钻作业题库 ships an update every 5 months, 栋梁e学 every 2 months. The most recent releases landed on September 18, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 石油天然气司钻作业题库 | 栋梁e学 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 88 MB | 243 MB |
| Requires iOS | 12.0 | **10.3** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Changsha Xisai Liman Education Technology Co., Ltd](https://appshunter.io/developer/1466745593) | [北京知华信科技有限公司](https://appshunter.io/developer/1540540927) |

## What reviewers say

### 石油天然气司钻作业题库

[App page](https://appshunter.io/ios/app/id1525846639)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1学币 | $0.99 | one-time |
| 10学币 | $0.99 | one-time |
| 40学币 | $5.99 | one-time |
| 50学币 | $6.99 | one-time |
| 三个月题库 | $11.99 | one-time |
| 三个月找答案+题库 | $14.99 | one-time |
| 100学币 | $14.99 | one-time |
| 120学币 | $17.99 | one-time |
| 150学币 | $19.99 | one-time |
| 300学币 | $39.99 | one-time |


### 栋梁e学

[App page](https://appshunter.io/ios/app/e/id1580329161)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 石油天然气司钻作业题库 free?

石油天然气司钻作业题库 is free to download, with in-app purchases available.

### Is 栋梁e学 free?

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

### Do 石油天然气司钻作业题库 or 栋梁e学 have ads?

Neither 石油天然气司钻作业题库 nor 栋梁e学 shows ads.

### Which is updated more often, 石油天然气司钻作业题库 or 栋梁e学?

石油天然气司钻作业题库 ships an update every 5 months, and 栋梁e学 every 2 months. Most recently, 石油天然气司钻作业题库 was updated on September 18, 2026 and 栋梁e学 on September 16, 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.*