# 计算器 vs OpenScreen

The clearest difference is price: 计算器 at Free against OpenScreen's $5.99. 计算器 also leads on iOS requirement (11.0 vs 17.0). OpenScreen's advantage is in-app purchases (none vs 7). On update cadence, ads and device support there is nothing between them.

计算器 is free to download; OpenScreen costs $5.99 up front. 计算器 sells 7 in-app purchases, starting at $0.99 per 7 days. OpenScreen asks for nothing beyond the download.

计算器 ships an update every 10 days, OpenScreen fortnightly. The most recent releases landed on October 6, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 计算器 | OpenScreen |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Size | 125 MB | 5 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [冠维 骆](https://appshunter.io/developer/1711309192) | [建斌 孙](https://appshunter.io/developer/1883570628) |

## What reviewers say

### 计算器

[App page](https://appshunter.io/ios/app/id6497794776)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $0.99 | per 7 days |
| 周会员 | $3.99 | per 7 days |
| 月会员 | $5.99 | per month |
| 年会员 | $14.99 | per year |
| 周会员 | $3.99 | one-time |
| 月会员 | $4.99 | one-time |
| 年会员 | $14.99 | one-time |


### OpenScreen

[App page](https://appshunter.io/ios/app/openscreen-screen-demo-maker/id6771039930)

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

**In-app purchases:** none


## Frequently asked questions

### Is 计算器 free?

计算器 is free to download, with in-app purchases available.

### Is OpenScreen free?

OpenScreen costs $5.99, with no in-app purchases.

### Do 计算器 or OpenScreen have ads?

Neither 计算器 nor OpenScreen shows ads.

### Which is updated more often, 计算器 or OpenScreen?

计算器 ships an update every 10 days, and OpenScreen fortnightly. Most recently, 计算器 was updated on October 6, 2026 and OpenScreen on October 28, 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.*