# Operational Amplifiers Pro — Op-Amp Calculator Toolkit

> Op-amp circuit design and analysis toolkit with calculators and reference data. (iPhone/iPad app by ALG Software Lab.)

- Source: https://appshunter.io/ios/app/operational-amplifiers-pro/id6467253953 (this page in markdown: same URL + `.md`)
- Developer: [ALG Software Lab](https://appshunter.io/developer/1650561236)
- Category: Utilities, Reference
- Price: $4.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.0 · 14 MB
- Languages: Ukrainian, Russian, Indonesian, Turkish, German (Germany), Italian, Japanese, French (France), Polish, Chinese (Simplified, China) and 4 more
- Released: 2023-09-22
- Data updated: 2026-08-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/operational-amplifiers-pro/id6467253953/reviews.md

## What is Operational Amplifiers Pro?

Operational Amplifiers Pro is your essential tool for designing and analyzing circuits using op-amps. Whether you're a student, electronics enthusiast, or experienced engineer, this app helps you create, calculate, and understand a wide variety of op-amp–based circuits with ease.

Use it as a practical reference when developing projects, building prototypes, or studying amplifier configurations. The app also includes technical data on popular operational amplifier and comparator series — making it a handy guide for both design and selection.

Available in 14 Languages:
• English, French, German, Indonesian, Italian, Japanese, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish, Ukrainian, and Vietnamese — study in your native language!

Key Features:
• Interactive calculators for common op-amp circuits
• Step-by-step explanations and formulas
• Reference info on op-amps and comparators
• Ideal for learning, prototyping, or quick checks
• Light and dark mode support

Pro Version Includes:
• Advanced calculators and circuit guides
• Full-text topic search
• Save favorite circuits for quick access

The application contains the following guides and calculators:

 Amplifiers
  • Non-inverting operational amplifier
  • Inverting operational amplifier
  • Inverting amplifier with T-bridge in OS
  • Differential amplifier
  • Differential amplifier with T-bridge in OS 
  • Voltage repeater
  • Inverting voltage repeater
  • AC voltage amplifier 
  • High Input Impedance AC Voltage Amplifier 
  • AC voltage repeater

  ActiveFilters
   • Non-inverting low-pass filter
   • Inverting low-pass filter
   • Non-inverting high-pass filter
   • Inverting high pass filter
   • Bandpass filter 
   • Gyrator

  Integrators and differentiators
   • Voltage integrator
   • Sum integrator
   • Integrator with signal amplification
   • Difference integrator
   • Double integrator
   • Voltage differentiator
   • Sum Differentiator
   • Differentiator with T-bridge
   • Differentiator with T-bridge made of capacitors
   • Difference differentiator

 Comparators
   • Comparator
   • Limiter
   • Limiter with zener diode at the input
   • RS trigger 

  Attenuators
   • Non-inverting attenuator
   • Inverting attenuator

 Converters
  • Voltage-to-current converter with non-inverting input
  • Voltage to current converter with inverting input
  • Voltage to current converter with differential input

 Adders and substactors
  • Inverting adder
  • Addition-subtraction circuit
  • Non-inverting adder

 Logarithmic and exponential amplifiers
  • Diode-based logarithmic amplifier
  • Transistor-based logarithmic amplifier
  • Diode exponential amplifier
  • Exponential transistor amplifier
  • Popular operational amplifiers description and pinout

Sine Wave generators
 • Op-Amp Oscillators
 • Oscillator with Diode in the Feedback Path
 • Twin-T Network Signal Generator

Square-wave pulse generators
 • Op-Amp Square-Wave Generator
 • Adjustable Square-Wave Generator
 • Enhanced Square-Wave Generator
 • Duty-Cycle Adjustment
 • Triangle and Square-Wave Generator
 • Generator with Adjustable Slope and Duty Cycle

Triangle-wave signal generators
 • Nonlinear Triangle-Wave Generator
 • Variable-Symmetry Sawtooth Generator
 • Linear Triangle-Wave Generator
 • Adjustable Linear Triangle-Wave Generator
 • Variable-Symmetry Ramp Generator

Download now and power up your electronics work!

## Key features

- Interactive op-amp circuit calculators
- Step-by-step explanations and formulas
- Reference data on op-amps and comparators
- Support for 14 languages
- Light and dark mode
- Advanced calculators and circuit guides (Pro)
- Full-text search (Pro)


## Frequently asked questions about Operational Amplifiers Pro

### What is Operational Amplifiers Pro?

Operational Amplifiers Pro is a utility app designed for calculating and analyzing circuits that use operational amplifiers (op-amps). It includes interactive calculators, step-by-step explanations, and reference data on various op-amp series.

### Who is Operational Amplifiers Pro for?

This app is ideal for students learning about electronics, hobbyists working on projects, and professional engineers who need a quick reference for op-amp circuit design and analysis.

### What types of circuits can I calculate with Operational Amplifiers Pro?

The app offers calculators for a wide range of circuits including amplifiers, active filters, integrators, differentiators, comparators, attenuators, converters, adders, subtractors, logarithmic/exponential amplifiers, and sine/square-wave generators.

### Does Operational Amplifiers Pro support multiple languages?

Yes, Operational Amplifiers Pro is available in 14 languages, including English, French, German, Spanish, and Simplified Chinese, allowing users to study and work in their native language.

### What are the benefits of the Pro version of Operational Amplifiers Pro?

The Pro version unlocks advanced calculators and circuit guides, provides a full-text search function for easy topic discovery, and allows users to save their favorite circuits for quick access.

### On which devices can I use Operational Amplifiers Pro?

Operational Amplifiers Pro is available for iPhone, iPad, and iPod touch devices, making it accessible for a wide range of Apple users.

### How often is Operational Amplifiers Pro updated?

The app was last updated on March 4, 2026, indicating ongoing development and support. The current version is 3.2.

### What is the price of Operational Amplifiers Pro?

Operational Amplifiers Pro is a paid application priced at $4.99. There are no in-app purchases or advertisements mentioned.

## Version history (last 5 releases)

### 3.3.1 — 2026-08-21

Updated content and libraries.

### 3.3 — 2026-08-18

Updated content and libraries. New UI design for iPad.

### 3.2 — 2026-03-04

We’ve expanded our content with 3 new languages!
The app is now available in 14 languages:
• English,
• French,
• German,
• Indonesian,
• Italian,
• Japanese,
• Polish,
• Portuguese,
• Russian,
• Simplified Chinese,
• Spanish,
• Turkish,
• Ukrainian,
• Vietnamese
— making it more accessible than ever.

### 3.1 — 2026-02-13

Updated content and libraries.

### 3.0 — 2025-12-20

Updated content and libraries. Added new themes and circuits:
 • Sine Wave Generators,
 • Square-wave pulse generators,
 • Triangle-wave signal generators.

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All apps by ALG Software Lab: https://appshunter.io/developer/1650561236

## Related topics

[operational amplifiers pro](https://appshunter.io/ios/topics/operational-amplifiers-pro)

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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 2026-08-28.*