# Triangle3 vs アングル加工

The clearest difference is price: アングル加工 at Free against Triangle3's $3.99. Triangle3's advantage is update cadence (every 5 weeks vs every 38 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

アングル加工 is free to download; Triangle3 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Triangle3 ships an update every 5 weeks, アングル加工 every 38 months. The most recent releases landed on September 13, 2026 and May 30, 2026 respectively.

## The numbers

| Metric | Triangle3 | アングル加工 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 38 months |
| Monetization | Paid | — |
| Size | 7 MB | 3 MB |
| Requires iOS | 15.0 | **14.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ryo sasaki](https://appshunter.io/developer/318552526) | [Takahiro Ikejima](https://appshunter.io/developer/1528934187) |

## What reviewers say

### Triangle3

[App page](https://appshunter.io/ios/app/triangle3/id1643788233)

This app provides advanced calculation tools for field work, specializing in right and unequal triangles. It supports complex shapes like cones, pipes, and screw wings, with AR visualization for floor plans. It also includes standard calculator functions and memory features.

**Highlights:** Right and unequal triangle calculations, Complex shape development (cones, pipes, etc.), Augmented Reality (AR) floor plan visualization, Standard calculator functions with memory, Trigonometric and cosine theorem calculations, PCD and screw wing calculations

**Features:** Vision Pro support

**In-app purchases:** none


### アングル加工

[App page](https://appshunter.io/ios/app/id6446820088)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Triangle3 free?

Triangle3 costs $3.99, with no in-app purchases.

### Is アングル加工 free?

アングル加工 is free to download, with no in-app purchases.

### Do Triangle3 or アングル加工 have ads?

Neither Triangle3 nor アングル加工 shows ads.

### Which is updated more often, Triangle3 or アングル加工?

Triangle3 ships an update every 5 weeks, and アングル加工 every 38 months. Most recently, Triangle3 was updated on September 13, 2026 and アングル加工 on May 30, 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.*