# Tri vs Trigonometry Calculator SinCos

The clearest difference is review sentiment: Tri at 100% against Trigonometry Calculator SinCos's 0%. Tri also leads on price (Free vs $1.99) and rating (5.0 vs 1.3). Trigonometry Calculator SinCos's advantage is ads (none vs shown) and update cadence (every 2 months vs every 12 months). On in-app purchases and device support there is nothing between them.

Tri is free to download; Trigonometry Calculator SinCos costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tri holds the better App Store score, 5.0 against 1.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 100% of Tri's written reviews are positive against 0% of Trigonometry Calculator SinCos's.

Tri ships an update every 12 months, Trigonometry Calculator SinCos every 2 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Tri | Trigonometry Calculator SinCos |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tri-func/id496807268/reviews)** | [1.3 (3 ratings)](https://appshunter.io/ios/app/trigonometry-calculator-sincos/id6475329940/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | **Ad-supported** | Paid |
| Size | 4 MB | 56 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thirdware.jp](https://appshunter.io/developer/464228680) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## 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


### Trigonometry Calculator SinCos

[App page](https://appshunter.io/ios/app/trigonometry-calculator-sincos/id6475329940)

This app calculates sides, angles, and area for right-angled triangles. It also computes various trigonometric functions and provides a comprehensive collection of trigonometric formulas and laws.

**Highlights:** Right triangle solver, Trigonometric function calculator, Formulas and laws collection, Calculate sides, angles, and area, Degrees and radians support

**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 Trigonometry Calculator SinCos free?

Trigonometry Calculator SinCos costs $1.99, with no in-app purchases.

### Which has better reviews, Tri or Trigonometry Calculator SinCos?

Tri is rated higher. Tri averages 5.0 out of 5 from 1 ratings, while Trigonometry Calculator SinCos averages 1.3 from 3 ratings.

### Do Tri or Trigonometry Calculator SinCos have ads?

Tri shows ads; Trigonometry Calculator SinCos does not.

### Which is updated more often, Tri or Trigonometry Calculator SinCos?

Tri ships an update every 12 months, and Trigonometry Calculator SinCos every 2 months. Most recently, Tri was updated on October 20, 2026 and Trigonometry Calculator SinCos on October 24, 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.*