# Capacitor Calculator vs Trigonometry Master

The clearest difference is price: Capacitor Calculator at $2.99 against Trigonometry Master's $12.99. Capacitor Calculator also leads on rating (3.8 vs 2.5). Trigonometry Master's advantage is update cadence (every 10 months vs every 29 months) and iOS requirement (11.0 vs 17.6). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Capacitor Calculator costs $2.99 and Trigonometry Master $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Capacitor Calculator holds the better App Store score, 3.8 against 2.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Capacitor Calculator ships an update every 29 months, Trigonometry Master every 10 months. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Capacitor Calculator | Trigonometry Master |
| --- | --- | --- |
| Price | **$2.99** | $12.99 |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/capacitor-calculator/id1366563133/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/trigonometry-master/id1389001905/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 10 months** |
| Monetization | Paid | Paid |
| Size | 1 MB | 12 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644) |

## What reviewers say

### Capacitor Calculator

[App page](https://appshunter.io/ios/app/capacitor-calculator/id1366563133)

This utility app calculates the time constant and energy stored in a capacitor. It helps understand the time-delay characteristics of electrical circuits when a voltage is applied.

**Highlights:** Calculate time constant (RC), Calculate energy stored (E), Input voltage, capacitance, and resistance, Understand capacitor charging/discharging, Analyze circuit time-delay

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Capacitor Calculator free?

Capacitor Calculator costs $2.99, with no in-app purchases.

### Is Trigonometry Master free?

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

### Which has better reviews, Capacitor Calculator or Trigonometry Master?

Capacitor Calculator is rated higher. Capacitor Calculator averages 3.8 out of 5 from 4 ratings, while Trigonometry Master averages 2.5 from 2 ratings.

### Do Capacitor Calculator or Trigonometry Master have ads?

Neither Capacitor Calculator nor Trigonometry Master shows ads.

### Which is updated more often, Capacitor Calculator or Trigonometry Master?

Capacitor Calculator ships an update every 29 months, and Trigonometry Master every 10 months. Most recently, Capacitor Calculator was updated on September 14, 2026 and Trigonometry Master on September 10, 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.*