# Trigonometry Master vs Electrical Calculation Tools

The clearest difference is price: Electrical Calculation Tools at $1.99 against Trigonometry Master's $12.99. Trigonometry Master's advantage is iOS requirement (11.0 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Trigonometry Master costs $12.99 and Electrical Calculation Tools $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Trigonometry Master ships an update every 10 months, Electrical Calculation Tools every 5 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Trigonometry Master | Electrical Calculation Tools |
| --- | --- | --- |
| Price | $12.99 | **$1.99** |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/trigonometry-master/id1389001905/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 12 MB | 37 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### Trigonometry Master

[App page](https://appshunter.io/ios/app/trigonometry-master/id1389001905)

Easily calculate unknown sides, angles, area, and perimeter of any triangle. Supports both right and oblique triangles with visual input modes and adjustable decimal places for accuracy. Includes a history tape and email sharing for recent calculations.

**Highlights:** Solves right and oblique triangles, Calculates sides, angles, area, perimeter, Draws calculated triangles, Supports degrees and radians, Visual input modes, Adjustable decimal places, History tape and email results

**Features:** Vision Pro support

**In-app purchases:** none


### Electrical Calculation Tools

[App page](https://appshunter.io/ios/app/electrical-calculation-tools/id6446797237)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry Master free?

Trigonometry Master costs $12.99, with no in-app purchases.

### Is Electrical Calculation Tools free?

Electrical Calculation Tools costs $1.99, with no in-app purchases.

### Do Trigonometry Master or Electrical Calculation Tools have ads?

Neither Trigonometry Master nor Electrical Calculation Tools shows ads.

### Which is updated more often, Trigonometry Master or Electrical Calculation Tools?

Trigonometry Master ships an update every 10 months, and Electrical Calculation Tools every 5 months. Most recently, Trigonometry Master was updated on September 10, 2026 and Electrical Calculation Tools 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.*