# HypotenuseCalc vs Triangle3

The clearest difference is review sentiment: HypotenuseCalc at 85% against Triangle3's 40%. HypotenuseCalc also leads on price ($0.99 vs $3.99) and iOS requirement (8.0 vs 15.0). Triangle3's advantage is update cadence (every 5 weeks vs every 25 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

HypotenuseCalc costs $0.99 and Triangle3 $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HypotenuseCalc ships an update every 25 months, Triangle3 every 5 weeks. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | HypotenuseCalc | Triangle3 |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hypotenusecalc/id640750228/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **85.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 1 MB | 7 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EIICHI KOMINE](https://appshunter.io/developer/495643581) | [ryo sasaki](https://appshunter.io/developer/318552526) |

## What reviewers say

### HypotenuseCalc

[App page](https://appshunter.io/ios/app/hypotenusecalc/id640750228)

Calculate angles and lengths of triangles with two distinct modes. One mode uses a fixed triangle shape, while the other adjusts the figure based on triangle size. This tool is valuable for professionals in architecture, surveying, and design.

**Highlights:** Automatic angle and length calculation, Fixed triangle shape mode, Variable triangle figure mode, Useful for architecture, Valuable for surveying, Aids in design

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is HypotenuseCalc free?

HypotenuseCalc costs $0.99, with no in-app purchases.

### Is Triangle3 free?

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

### Do HypotenuseCalc or Triangle3 have ads?

Neither HypotenuseCalc nor Triangle3 shows ads.

### Which is updated more often, HypotenuseCalc or Triangle3?

HypotenuseCalc ships an update every 25 months, and Triangle3 every 5 weeks. Most recently, HypotenuseCalc was updated on October 13, 2026 and Triangle3 on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*