# 安全文档查看器 vs 榆能e采

安全文档查看器 and 榆能e采 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 安全文档查看器 | 榆能e采 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 8 MB | 32 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TEC Guangzhou Solutions Limited](https://appshunter.io/developer/1192162769) | [陕西榆林能源](https://appshunter.io/developer/1656879098) |

## What reviewers say

### 安全文档查看器

[App page](https://appshunter.io/ios/app/id1192162770)

**Features:** Vision Pro support

**In-app purchases:** none


### 榆能e采

[App page](https://appshunter.io/ios/app/e/id6445918780)

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

**In-app purchases:** none


## Frequently asked questions

### Is 安全文档查看器 free?

安全文档查看器 is free to download, with no in-app purchases.

### Is 榆能e采 free?

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

### Do 安全文档查看器 or 榆能e采 have ads?

Neither 安全文档查看器 nor 榆能e采 shows ads.

### Which is updated more often, 安全文档查看器 or 榆能e采?

安全文档查看器 ships an update every 2 months, and 榆能e采 every 2 months. Most recently, 安全文档查看器 was updated on October 26, 2026 and 榆能e采 on October 30, 2026.

---

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