# 数形加油站HD vs 影转工坊

The clearest difference is price: 数形加油站HD at Free against 影转工坊's $0.99. 数形加油站HD also leads on in-app purchases (none vs 4) and iOS requirement (9.0 vs 16.0). 影转工坊's advantage is update cadence (every 9 days vs every 3 weeks). On ads and device support there is nothing between them.

数形加油站HD is free to download; 影转工坊 costs $0.99 up front. 影转工坊 sells 4 in-app purchases, starting at $0.99 per month. 数形加油站HD asks for nothing beyond the download.

数形加油站HD ships an update every 3 weeks, 影转工坊 every 9 days. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 数形加油站HD | 影转工坊 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/id6799343063/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 92.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 191 MB | 6 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 9+ |
| Developer | [Beijing Ruozhuo Technology Co., Ltd](https://appshunter.io/developer/1758901031) | [慧宇 张](https://appshunter.io/developer/6799178733) |

## What reviewers say

### 数形加油站HD

[App page](https://appshunter.io/ios/app/hd/id6751450237)

**Features:** macOS Compatibility

**In-app purchases:** none


### 影转工坊

[App page](https://appshunter.io/ios/app/id6799343063)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 专业版Pro-月付 | $0.99 | per month |
| 专业版-半年付 | $7.99 | per 6 months |
| 专业版-年付 | $14.99 | per year |
| 专业版 | $0.99 | one-time |


## Frequently asked questions

### Is 数形加油站HD free?

数形加油站HD is free to download, with no in-app purchases.

### Is 影转工坊 free?

影转工坊 costs $0.99, and also offers in-app purchases.

### Do 数形加油站HD or 影转工坊 have ads?

Neither 数形加油站HD nor 影转工坊 shows ads.

### Which is updated more often, 数形加油站HD or 影转工坊?

数形加油站HD ships an update every 3 weeks, and 影转工坊 every 9 days. Most recently, 数形加油站HD was updated on October 6, 2026 and 影转工坊 on October 18, 2026.

---

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