# Engineering Toolbox ET — Engineering Toolbox

> Lightweight utility for basic electronic formulas and calculations. (iPhone/iPad app by Ricardo Torres.)

- Source: https://appshunter.io/ios/app/engineering-toolbox-et/id1570200621 (this page in markdown: same URL + `.md`)
- Developer: [Ricardo Torres](https://appshunter.io/developer/1570200623)
- Category: Utilities, Education
- Price: $1.99
- Rating: 4.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 14.3 · 4 MB
- Languages: English, Spanish
- Released: 2021-06-02
- Data updated: 2026-07-07
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/engineering-toolbox-et/id1570200621/reviews.md

## What is Engineering Toolbox ET?

Engineering Toolbox is a lightweight app that you'll be able to use to apply basic electronic formulas, without the need to remember them! Such as: resistor color codes, capacitor codes, numeric base conversion, parallel resistors calculation, LED resistor calculation, and more.

## Key features

- Resistor color code lookup
- Capacitor code lookup
- Numeric base conversion
- Parallel resistors calculation
- LED resistor calculation


## Frequently asked questions about Engineering Toolbox ET

### What electronic formulas does Engineering Toolbox ET offer?

Engineering Toolbox ET provides calculations for resistor color codes, capacitor codes, numeric base conversion, parallel resistors, and LED resistors. It aims to simplify common electronic computations for users.

### Is Engineering Toolbox ET free to download?

No, Engineering Toolbox ET is a paid application. It is priced at $1.99 and does not offer a free version.

### What devices is Engineering Toolbox ET compatible with?

Engineering Toolbox ET is designed for Apple devices, including iPhone, iPad, and iPod. It requires iOS or a compatible operating system.

### How often is Engineering Toolbox ET updated?

Engineering Toolbox ET was last updated on June 2, 2021, with version 1.0. As of the latest information, there have been no subsequent updates.

### What is the age rating for Engineering Toolbox ET?

Engineering Toolbox ET has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### Does Engineering Toolbox ET require an internet connection to function?

The description does not specify internet requirements, but its function as a formula calculator suggests it may operate offline. This allows for convenient use without data access.

### What do users like about Engineering Toolbox ET?

With only one rating available, the user sentiment is limited. The provided rating is 4.0 stars, suggesting a positive initial reception for its utility.

## Version history (last 1 release)

### 1.0 — 2021-06-02

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*