# Triangle Solver vs Tri

The clearest difference is rating: Triangle Solver at 5.0 against Tri's 4.5. Triangle Solver also leads on in-app purchases (none vs 1). Tri's advantage is ratings volume (17 vs 2) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Tri sells 1 one-off in-app purchase. Triangle Solver asks for nothing beyond the download.

Triangle Solver holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Tri has 17 ratings behind it against 2, so its average is the more settled of the two.

Triangle Solver ships an update monthly, Tri every 2 months. The most recent releases landed on September 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Triangle Solver | Tri |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/triangle-solver/id1508047860/reviews)** | [4.5 (17 ratings)](https://appshunter.io/ios/app/tri-go-math-your-math-helper/id1525513476/reviews) |
| Number of ratings | 2 | **17** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 47 MB | 48 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Francesco Varotti](https://appshunter.io/developer/1501752853) | [Alejandro Apodaca](https://appshunter.io/developer/1524127326) |

## What reviewers say

### Triangle Solver

[App page](https://appshunter.io/ios/app/triangle-solver/id1508047860)

This app provides step-by-step solutions for triangle calculations and angle conversions. It includes practice exercises, a trigonometry formula sheet, and an integrated math keyboard for easy input. Ideal for students and professionals needing to master triangle properties.

**Highlights:** Step-by-step triangle calculations, Angle conversion, Practice trigonometry exercises, Trigonometry formula sheet, Integrated math keyboard

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

**In-app purchases:** none


### Tri

[App page](https://appshunter.io/ios/app/tri-go-math-your-math-helper/id1525513476)

This app simplifies math homework with a suite of tools including area, basic, and trigonometry calculators. It offers offline access and equation solvers for first and second-degree equations, with more features planned.

**Highlights:** Offline Access, Area Calculator, Basic Calculator, Trigonometry Calculator, Unit Converter, Equation Solvers

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quitar anuncios | $1.99 | one-time |


## Frequently asked questions

### Is Triangle Solver free?

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

### Is Tri free?

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

### Which has better reviews, Triangle Solver or Tri?

Triangle Solver is rated higher. Triangle Solver averages 5.0 out of 5 from 2 ratings, while Tri averages 4.5 from 17 ratings.

### Do Triangle Solver or Tri have ads?

Both Triangle Solver and Tri show ads.

### Which is updated more often, Triangle Solver or Tri?

Triangle Solver ships an update monthly, and Tri every 2 months. Most recently, Triangle Solver was updated on September 17, 2026 and Tri on October 5, 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.*