# 机友计算器pro vs 决定转盘

The clearest difference is in-app purchases: 机友计算器pro at none against 决定转盘's 2. 决定转盘's advantage is update cadence (every 2 months vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 决定转盘 sells 2 in-app purchases, starting at $0.49 per month. 机友计算器pro asks for nothing beyond the download.

机友计算器pro ships an update every 7 months, 决定转盘 every 2 months. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 机友计算器pro | 决定转盘 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Size | 59 MB | 83 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Changsha Fugui Bamboo Network Technology Co., Ltd.](https://appshunter.io/developer/1458061020) | [长沙年余信息科技有限公司](https://appshunter.io/developer/1469330214) |

## What reviewers say

### 机友计算器pro

[App page](https://appshunter.io/ios/app/pro/id1546706241)

**Features:** macOS Compatibility

**In-app purchases:** none


### 决定转盘

[App page](https://appshunter.io/ios/app/id1598469741)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月会员 | $0.49 | per month |
| Permanent VIP | $1.99 | one-time |


## Frequently asked questions

### Is 机友计算器pro free?

机友计算器pro is free to download, with no in-app purchases.

### Is 决定转盘 free?

决定转盘 is free to download, with in-app purchases available.

### Do 机友计算器pro or 决定转盘 have ads?

Neither 机友计算器pro nor 决定转盘 shows ads.

### Which is updated more often, 机友计算器pro or 决定转盘?

机友计算器pro ships an update every 7 months, and 决定转盘 every 2 months. Most recently, 机友计算器pro was updated on September 9, 2026 and 决定转盘 on September 14, 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.*