# Tri vs Quintuple Calc

The clearest difference is update cadence: Quintuple Calc at every 2 weeks against Tri's every 12 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tri ships an update every 12 months, Quintuple Calc every 2 weeks. The most recent releases landed on September 16, 2026 and August 3, 2026 respectively.

## The numbers

| Metric | Tri | Quintuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tri-func/id496807268/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 4 MB | 36 MB |
| Requires iOS | **15.6** | 15.8.3 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thirdware.jp](https://appshunter.io/developer/464228680) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Tri

[App page](https://appshunter.io/ios/app/tri-func/id496807268)

This utility app provides the formula and value for calculating triangle properties. It's designed for quick access to mathematical formulas related to triangles.

**Highlights:** Triangle formula display, Value calculation, Quick access utility, Mathematical formulas

**Features:** Vision Pro support

**In-app purchases:** none


### Quintuple Calc

[App page](https://appshunter.io/ios/app/quintuple-calc/id6742364690)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tri free?

Tri is free to download, with no in-app purchases.

### Is Quintuple Calc free?

Quintuple Calc is free to download, with no in-app purchases.

### Do Tri or Quintuple Calc have ads?

Both Tri and Quintuple Calc show ads.

### Which is updated more often, Tri or Quintuple Calc?

Tri ships an update every 12 months, and Quintuple Calc every 2 weeks. Most recently, Tri was updated on September 16, 2026 and Quintuple Calc on August 3, 2026.

---

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