# 转盘决定器 vs TriCalc

The clearest difference is in-app purchases: 转盘决定器 at none against TriCalc's 1. 转盘决定器 also leads on iOS requirement (11.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. TriCalc sells 1 one-off in-app purchase. 转盘决定器 asks for nothing beyond the download.

## The numbers

| Metric | 转盘决定器 | TriCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Monthly |
| Size | 26 MB | 22 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [志明 魏](https://appshunter.io/developer/1559401805) | [Keita Ogasawara](https://appshunter.io/developer/1524965899) |

## What reviewers say

### 转盘决定器

[App page](https://appshunter.io/ios/app/id6447852016)

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

**In-app purchases:** none


### TriCalc

[App page](https://appshunter.io/ios/app/tricalc-triangle-solver/id6762830339)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is 转盘决定器 free?

转盘决定器 is free to download, with no in-app purchases.

### Is TriCalc free?

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

### Do 转盘决定器 or TriCalc have ads?

Both 转盘决定器 and TriCalc show ads.

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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.*