# ES 计算器 vs 回形针

The clearest difference is device support: 回形针 at 2 against ES 计算器's —. ES 计算器's advantage is iOS requirement (12.0 vs 18). On price and in-app purchases there is nothing between them.

Both are free to download. ES 计算器 sells 6 in-app purchases, starting at $3.99 per month and 回形针 sells 3 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | ES 计算器 | 回形针 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/es/id6502588790/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | — | Yes |
| Update frequency | — | Fortnightly |
| Monetization | Freemium | — |
| Size | 10 MB | 2 MB |
| Requires iOS | **12.0** | 18 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Chongqing Breeze Technology Co., LTD](https://appshunter.io/developer/1745715341) | [Chengdu Cold Technology Co., Ltd](https://appshunter.io/developer/1873882906) |

## What reviewers say

### ES 计算器

[App page](https://appshunter.io/ios/app/es/id6502588790)

This calculator app offers real-time results, supports bracket operations, and allows for easy editing of input. It features quick operations, saves calculation history, and boasts an extremely fast startup time.

**Highlights:** Supports bracket operations, Real-time calculation results, Editable input process, Saves calculation history, Quick operations, Millisecond startup time

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| vip/月 | $3.99 | per month |
| 会员三月 | $7.99 | per 3 months |
| vip/年 | $24.99 | per year |
| VIP一年 | $24.99 | per year |
| VIP一年 | $29.99 | per year |
| VIP一年(定制版) | $29.99 | per year |


### 回形针

[App page](https://appshunter.io/ios/app/id6758598656)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一年会员使用权益 打开微信时 | $24.99 | per year |
| 一年会员使用权益 打开勿扰模式时 | $24.99 | per year |
| 一年会员使用权益 打开APP时 | $24.99 | per year |


## Frequently asked questions

### Is ES 计算器 free?

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

### Is 回形针 free?

回形针 is free to download, with in-app purchases available.

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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.*