# 直角三角形電卓 vs Decoy

The clearest difference is price: Decoy at Free against 直角三角形電卓's $1.99. 直角三角形電卓's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On ads there is nothing between them.

Decoy is free to download; 直角三角形電卓 costs $1.99 up front. Decoy sells 1 one-off in-app purchase. 直角三角形電卓 asks for nothing beyond the download.

## The numbers

| Metric | 直角三角形電卓 | Decoy |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 26 MB | 10 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kotobaz](https://appshunter.io/developer/1634727152) | [Mari Suzuki](https://appshunter.io/developer/1823161754) |

## What reviewers say

### 直角三角形電卓

[App page](https://appshunter.io/ios/app/triangel/id6502329330)

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

**In-app purchases:** none


### Decoy

[App page](https://appshunter.io/ios/app/decoy-hidden-lock-screen-note/id6793933556)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decoy Pro | $4.99 | one-time |


## Frequently asked questions

### Is 直角三角形電卓 free?

直角三角形電卓 costs $1.99, with no in-app purchases.

### Is Decoy free?

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

### Do 直角三角形電卓 or Decoy have ads?

Neither 直角三角形電卓 nor Decoy shows 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.*