# 数智石墨 vs 注册安全工程师2025

The clearest difference is in-app purchases: 数智石墨 at none against 注册安全工程师2025's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 注册安全工程师2025 sells 3 in-app purchases, starting at $4.99 per month. 数智石墨 asks for nothing beyond the download.

数智石墨 ships an update every 2 months, 注册安全工程师2025 monthly. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 数智石墨 | 注册安全工程师2025 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/2025/id6745165498/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Freemium |
| Size | 181 MB | 7 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [伟青 宋](https://appshunter.io/developer/1416399881) | [帅帅 张](https://appshunter.io/developer/1895142036) |

## What reviewers say

### 数智石墨

[App page](https://appshunter.io/ios/app/id6466149870)

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

**In-app purchases:** none


### 注册安全工程师2025

[App page](https://appshunter.io/ios/app/2025/id6745165498)

This app provides a comprehensive question bank for the registered safety engineer exam, featuring past papers with detailed analysis and chapter-based exercises. It offers smart learning reports and focuses on high-frequency questions to optimize study efficiency for all types of candidates.

**Highlights:** Past exam questions with analysis, Chapter-based practice exercises, Intelligent learning reports, High-frequency question bank, Subscription plans available

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $4.99 | per month |
| 年会员 | $9.99 | one-time |
| 两年会员 | $14.99 | one-time |


## Frequently asked questions

### Is 数智石墨 free?

数智石墨 is free to download, with no in-app purchases.

### Is 注册安全工程师2025 free?

注册安全工程师2025 is free to download, with in-app purchases available.

### Do 数智石墨 or 注册安全工程师2025 have ads?

Neither 数智石墨 nor 注册安全工程师2025 shows ads.

### Which is updated more often, 数智石墨 or 注册安全工程师2025?

数智石墨 ships an update every 2 months, and 注册安全工程师2025 monthly. Most recently, 数智石墨 was updated on October 12, 2026 and 注册安全工程师2025 on October 10, 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.*