# Calctronics: Circuit Calc — Electronics circuit calculator

> Electronic engineering calculator and design tool for circuits and components. (iPhone/iPad app by Anas Abubakar.)

- Source: https://appshunter.io/ios/app/calctronics-circuit-calc/id1583972990 (this page in markdown: same URL + `.md`)
- Developer: [Anas Abubakar](https://appshunter.io/developer/1581534101)
- Category: Productivity, Education
- Price: Free with in-app purchases
- Rating: 4.00/5 from 5 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 35 MB
- Languages: American English
- Released: 2021-09-02
- Data updated: 2026-08-30
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calctronics-circuit-calc/id1583972990/reviews.md

## What is Calctronics?

Introducing the ultimate electronic engineering app! With its comprehensive collection of calculators and design tools, you'll be able to tackle any electronic project with ease. Our app features a filter design calculator that allows you to plot graphs, making it easier to visualize your calculations. Additionally, we've included resistor, transistor, capacitor, amplifier, and inductor design tools to help you tackle any electronic design problem. Whether you're a professional electronic engineer or just starting out, this app is the perfect tool to have in your arsenal. Download now and experience the power of electronic engineering in the palm of your hand!



Here are some stuffs you can do with the app:-

Circuit design
Electrical calculations
Filter design
Resistor calculations
Transistor design
Capacitor design
Amplifier design
Inductor design
Electrical engineering tools
Electronic engineering calculator
Circuit analysis





--- The app contains the following calculators ---
• Resistor Colour Code
• Resistors in series and parallel
• Capacitors in series and parallel
• Capacitor charge
• Resistor's Y to delta and delta to Y Converter
• Resistor's Pi, Tee and bridge Tee attenuator
• SMD Resistor Code
• Capacitor Code includes polyester and ceramic capacitors
• Ohm's Law
• Transistor amplifier calculator
• Filters Sallen-Key active filter, Butterworth, Chebyshev and Bessel filters
• Voltage divider
• Resistor Ratio
• Skin depth
• Decibel to Watt and Watt to decibel converter
• Coaxial cable and 2 parallel wires impedance and capacitance calculator
• Operational Amplifier eg inverting amplifier, Difference amplifier and Non 
  inverting amplifier
• LED series Resistor Calculator
• Adjustable voltage regulator
• 555 timer Calculator including Astable and monostable timer
• Power dissipation
• Micro strip trace width and impedance calculator
• Inductor Design Tool
• Cylinderical wave guide Calculator
• Rectangular wave guide Calculator
• PCB Trace Width Calculator
• Series capacitor, inductor and resistor Resonance
• Capacitive Reactance
• Inductive Reactance
• Power Calculator
• Decibel Converter
• Crossover calculator
• Band pass and Band reject filter design




Whether you're a professional engineer or a student learning about electronics, Electronics Calculator Pro is the perfect tool for your circuit design needs. With its comprehensive set of calculator tools and offline functionality, you'll have everything you need to design and analyze your circuits with confidence. Try it out today!

## Key features

- Comprehensive calculator collection
- Filter design with graph plotting
- Resistor, transistor, capacitor design tools
- Amplifier and inductor design
- Circuit analysis and design
- Offline functionality

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Upgrade to the Pro version | $2.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/calctronics-circuit-calc/id1583972990/reviews.md

### 3/5 — Не работает

*2023-11-20*

Не работает расчет гасящего сопротивления для светодиода даже на про версии

## Frequently asked questions about Calctronics

### What types of calculators does Electrocalc offer?

Electrocalc offers a wide range of calculators including resistor color codes, Ohm's Law, filter designs (Butterworth, Chebyshev, Bessel), amplifier calculations, and impedance calculators for various wire types and PCB traces.

### Can I design filters with Electrocalc?

Yes, Electrocalc features filter design tools that allow you to plot graphs, making it easier to visualize your calculations for Sallen-Key active filters, band pass, and band reject filters.

### Is Electrocalc available offline?

Yes, Electrocalc provides offline functionality, allowing you to design and analyze circuits with confidence without an internet connection.

### What devices is Electrocalc compatible with?

Electrocalc is compatible with iPhone, iPad, and iPod devices.

### How often is Electrocalc updated?

The latest version is 6, and the app was last updated on April 16, 2025, indicating active development and maintenance.

### What is the age rating for Electrocalc?

Electrocalc has an age rating of 4+, making it suitable for a wide range of users, including younger learners.

### Does Electrocalc have ads?

No, Electrocalc does not contain advertisements, providing an uninterrupted user experience.

### What is the user rating for Electrocalc?

Electrocalc has a rating of 4.0 stars based on 4 ratings, suggesting positive user reception.

## Version history (last 5 releases)

### 10 — 2026-08-05

Few bugs fixed

### 9 — 2026-07-04

Few bugs fixed

### 8 — 2026-06-29

few bug fixed, improved the UI

### 7 — 2026-06-24

Bugs fixed, improves the UI and added more content/tools

### 6 — 2025-04-16

Minor bug fixes and performance improvements.

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## More apps by Anas Abubakar

- [Electronics docs & calculators](https://appshunter.io/ios/app/electronics-docs-and-calculators/id1581668963)
- [Electronics docs & calcs](https://appshunter.io/ios/app/electronics-docs-and-calcs/id1581885136)
- [Calctronics: Circuit Calc Pro](https://appshunter.io/ios/app/calctronics-circuit-calc-pro/id1583600520)
- [Fisika - Physics app](https://appshunter.io/ios/app/fisika-physics-app/id1586848633)
- [PhysicsLab - Calculator lite](https://appshunter.io/ios/app/physicslab-calculator-lite/id1587705682)

All apps by Anas Abubakar: https://appshunter.io/developer/1581534101

## Related topics

[electronica](https://appshunter.io/ios/topics/electronica) · [ordinateur](https://appshunter.io/ios/topics/ordinateur)

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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 2026-08-30.*