# DLLHS vs Trigonometry Calculator.

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

Both are free to download. Trigonometry Calculator. sells 2 in-app purchases, starting at $2.99 per month. DLLHS asks for nothing beyond the download.

DLLHS ships an update every 2 months, Trigonometry Calculator. every 2 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | DLLHS | Trigonometry Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (20 ratings)](https://appshunter.io/ios/app/trigonometry-calculator/id6741517618/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | — | 62.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 100 MB | 64 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Abtus Ltd](https://appshunter.io/developer/1568295463) | [Horitech](https://appshunter.io/developer/1794537335) |

## What reviewers say

### DLLHS

[App page](https://appshunter.io/ios/app/dllhs/id1568295461)

**Features:** Vision Pro support

**In-app purchases:** none


### 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 DLLHS free?

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

### Is Trigonometry Calculator. free?

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

### Do DLLHS or Trigonometry Calculator. have ads?

Trigonometry Calculator. shows ads; DLLHS does not.

### Which is updated more often, DLLHS or Trigonometry Calculator.?

DLLHS ships an update every 2 months, and Trigonometry Calculator. every 2 weeks. Most recently, DLLHS was updated on November 7, 2026 and Trigonometry Calculator. on November 8, 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.*