# Triangle Angles Calculator vs Drop'n Volts

The clearest difference is price: Triangle Angles Calculator at Free against Drop'n Volts's $1.99. Triangle Angles Calculator also leads on update cadence (every 3 days vs every 6 months) and iOS requirement (12.0 vs 26.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Triangle Angles Calculator is free to download; Drop'n Volts costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Triangle Angles Calculator against 5.0 for Drop'n Volts. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Triangle Angles Calculator ships an update every 3 days, Drop'n Volts every 6 months. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Triangle Angles Calculator | Drop'n Volts |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/triangle-angles-calculator/id1598378708/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/dropn-volts/id6762097863/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 months |
| Monetization | **Free** | Paid |
| Size | 28 MB | 1 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Trofimov](https://appshunter.io/developer/1598378710) | [Francisco Alcala](https://appshunter.io/developer/339407925) |

## What reviewers say

### Triangle Angles Calculator

[App page](https://appshunter.io/ios/app/triangle-angles-calculator/id1598378708)

Easily calculate unknown sides, angles, and other parameters for various triangle types. Features interactive visualizations and works offline, making it ideal for students and professionals needing quick, accurate geometric solutions.

**Highlights:** Calculate unknown triangle parameters from 2-3 known values, Interactive visualization of triangle types, Real-time calculations with intuitive interface, Offline functionality, Supports metric and imperial units, Calculates sides, angles, area, perimeter, medians, and circles

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

**In-app purchases:** none


### Drop'n Volts

[App page](https://appshunter.io/ios/app/dropn-volts/id6762097863)

This app calculates the minimum conductor size needed for electrical installations. It accounts for load, distance, material, and phase, with options for multiple conductors, insulation types, and conduit materials. Results can be emailed for documentation.

**Highlights:** Voltage drop calculation, Conductor sizing, Single and three-phase support, NEC conduit fill compliance, Multiple conductor support, Email detailed results

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

**In-app purchases:** none


## Frequently asked questions

### Is Triangle Angles Calculator free?

Triangle Angles Calculator is free to download, with no in-app purchases.

### Is Drop'n Volts free?

Drop'n Volts costs $1.99, with no in-app purchases.

### Which has better reviews, Triangle Angles Calculator or Drop'n Volts?

Triangle Angles Calculator and Drop'n Volts are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Triangle Angles Calculator or Drop'n Volts have ads?

Neither Triangle Angles Calculator nor Drop'n Volts shows ads.

### Which is updated more often, Triangle Angles Calculator or Drop'n Volts?

Triangle Angles Calculator ships an update every 3 days, and Drop'n Volts every 6 months. Most recently, Triangle Angles Calculator was updated on October 12, 2026 and Drop'n Volts on October 15, 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.*