# QueenAlgebra 2 vs Trigonometry calc

The clearest difference is in-app purchases: QueenAlgebra 2 at none against Trigonometry calc's 1. QueenAlgebra 2 also leads on ads (none vs shown). Trigonometry calc's advantage is update cadence (every 3 months vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Trigonometry calc sells 1 one-off in-app purchase. QueenAlgebra 2 asks for nothing beyond the download.

QueenAlgebra 2 ships an update every 6 months, Trigonometry calc every 3 months. The most recent releases landed on September 17, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | QueenAlgebra 2 | Trigonometry calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 10 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Axan Software](https://appshunter.io/developer/1041029793) | [Bo Kalvslund](https://appshunter.io/developer/572272193) |

## What reviewers say

### QueenAlgebra 2

[App page](https://appshunter.io/ios/app/queenalgebra-2/id968122007)

**Features:** macOS Compatibility

**In-app purchases:** none


### Trigonometry calc

[App page](https://appshunter.io/ios/app/trigonometry-calc/id1306864057)

Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.

**Highlights:** Calculate side lengths, Calculate angles, Pythagorean Theorem, Trigonometry functions, Learn simple trigonometry, General triangle calculator (premium)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Frequently asked questions

### Is QueenAlgebra 2 free?

QueenAlgebra 2 is free to download, with no in-app purchases.

### Is Trigonometry calc free?

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

### Do QueenAlgebra 2 or Trigonometry calc have ads?

Trigonometry calc shows ads; QueenAlgebra 2 does not.

### Which is updated more often, QueenAlgebra 2 or Trigonometry calc?

QueenAlgebra 2 ships an update every 6 months, and Trigonometry calc every 3 months. Most recently, QueenAlgebra 2 was updated on September 17, 2026 and Trigonometry calc on September 6, 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.*