# Triangle Solver vs Noori

The clearest difference is in-app purchases: Triangle Solver at none against Noori's 4. Noori's advantage is ads (none vs shown) and update cadence (every 2 weeks vs monthly). On price and device support there is nothing between them.

Both are free to download. Noori sells 4 in-app purchases, starting at $2.99 per 7 days. Triangle Solver asks for nothing beyond the download.

Triangle Solver ships an update monthly, Noori every 2 weeks. The most recent releases landed on September 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Triangle Solver | Noori |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/triangle-solver/id1508047860/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 47 MB | 58 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Francesco Varotti](https://appshunter.io/developer/1501752853) | [Lukas Wagner](https://appshunter.io/developer/1553249904) |

## 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


### Noori

[App page](https://appshunter.io/ios/app/noori/id6761379284)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Noori Premium Weekly | $2.99 | per 7 days |
| Noori Pro Monthly | $6.99 | per month |
| Noori Pro Yearly | $34.99 | per year |
| Noori Ad-free | $3.99 | one-time |


## Frequently asked questions

### Is Triangle Solver free?

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

### Is Noori free?

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

### Do Triangle Solver or Noori have ads?

Triangle Solver shows ads; Noori does not.

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

Triangle Solver ships an update monthly, and Noori every 2 weeks. Most recently, Triangle Solver was updated on September 17, 2026 and Noori on October 13, 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.*