# Trigonometry Calculator. vs 正弦定理電卓アプリ

The clearest difference is price: Trigonometry Calculator. at Free against 正弦定理電卓アプリ's $1.99. 正弦定理電卓アプリ's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Trigonometry Calculator. is free to download; 正弦定理電卓アプリ costs $1.99 up front. Trigonometry Calculator. sells 2 in-app purchases, starting at $2.99 per month. 正弦定理電卓アプリ asks for nothing beyond the download.

Trigonometry Calculator. ships an update every 2 weeks, 正弦定理電卓アプリ daily. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Trigonometry Calculator. | 正弦定理電卓アプリ |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/trigonometry-calculator/id6741517618/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 8 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Horitech](https://appshunter.io/developer/1794537335) | [kotobaz](https://appshunter.io/developer/1634727152) |

## What reviewers say

### Trigonometry Calculator.

[App page](https://appshunter.io/ios/app/trigonometry-calculator/id6741517618)

This app calculates key values for right-angled and scalene triangles with high precision. It offers a user-friendly interface, flexible angle units, and includes a reference guide to trigonometric formulas. A subscription unlocks calculation steps and removes ads.

**Highlights:** Right-angled & scalene triangle support, Formula reference guide, Accurate side, angle, and area calculations, High precision to 14 decimal places, Flexible angle units (degrees/radians), User-friendly interface

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $24.99 | per year |


### 正弦定理電卓アプリ

[App page](https://appshunter.io/ios/app/sines/id6749813667)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry Calculator. free?

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

### Is 正弦定理電卓アプリ free?

正弦定理電卓アプリ costs $1.99, with no in-app purchases.

### Do Trigonometry Calculator. or 正弦定理電卓アプリ have ads?

Trigonometry Calculator. shows ads; 正弦定理電卓アプリ does not.

### Which is updated more often, Trigonometry Calculator. or 正弦定理電卓アプリ?

Trigonometry Calculator. ships an update every 2 weeks, and 正弦定理電卓アプリ daily. Most recently, Trigonometry Calculator. was updated on September 27, 2026 and 正弦定理電卓アプリ on September 23, 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.*