# Layout Calc Pro vs Trigonometry Calculator.

The clearest difference is ads: Layout Calc Pro at none against Trigonometry Calculator.'s shown. Layout Calc Pro also leads on update cadence (every 6 days vs every 2 weeks) and iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Layout Calc Pro sells 7 one-off in-app purchases and Trigonometry Calculator. sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Layout Calc Pro ships an update every 6 days, Trigonometry Calculator. every 2 weeks. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Layout Calc Pro | Trigonometry Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/trigonometry-calculator/id6741517618/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 64 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [思源 李](https://appshunter.io/developer/1704804704) | [Horitech](https://appshunter.io/developer/1794537335) |

## What reviewers say

### Layout Calc Pro

[App page](https://appshunter.io/ios/app/layout-calc-pro/id6476074424)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Three Day VIP | $5.00 | one-time |
| 1-Year VIP Membership | $19.99 | one-time |
| 2-Year VIP Membership | $34.99 | one-time |
| 3-Year VIP Membership | $44.99 | one-time |
| 1-Year VIP Membership | $55.00 | one-time |
| 2-Year VIP Membership | $104.99 | one-time |
| 3-Year VIP Membership | $154.99 | one-time |


### Trigonometry Calculator.

[App page](https://appshunter.io/ios/app/trigonometry-calculator/id6741517618)

This app calculates key values for right-angled and scalene triangles with high precision. It offers a user-friendly interface, flexible angle units, and includes a reference guide to trigonometric formulas. A subscription unlocks calculation steps and removes ads.

**Highlights:** Right-angled & scalene triangle support, Formula reference guide, Accurate side, angle, and area calculations, High precision to 14 decimal places, Flexible angle units (degrees/radians), User-friendly interface

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $24.99 | per year |


## Frequently asked questions

### Is Layout Calc Pro free?

Layout Calc Pro is free to download, with in-app purchases available.

### Is Trigonometry Calculator. free?

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

### Do Layout Calc Pro or Trigonometry Calculator. have ads?

Trigonometry Calculator. shows ads; Layout Calc Pro does not.

### Which is updated more often, Layout Calc Pro or Trigonometry Calculator.?

Layout Calc Pro ships an update every 6 days, and Trigonometry Calculator. every 2 weeks. Most recently, Layout Calc Pro was updated on September 17, 2026 and Trigonometry Calculator. on September 9, 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.*