# Opamp tools vs AC Circuit Analyzer

The clearest difference is update cadence: AC Circuit Analyzer at fortnightly against Opamp tools's every 12 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Opamp tools sells 1 one-off in-app purchase and AC Circuit Analyzer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Opamp tools ships an update every 12 months, AC Circuit Analyzer fortnightly. The most recent releases landed on May 16, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Opamp tools | AC Circuit Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ac-circuit-analyzer/id6446215739/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 4 MB | 35 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Paul Moat](https://appshunter.io/developer/1620489921) |

## What reviewers say

### Opamp tools

[App page](https://appshunter.io/ios/app/opamp-tools/id1616271826)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock pro feature | $1.99 | one-time |


### AC Circuit Analyzer

[App page](https://appshunter.io/ios/app/ac-circuit-analyzer/id6446215739)

This application enables users to simulate and design AC circuits, offering a unique way to input circuits in phasor form. It's an ideal tool for students studying electrical engineering and related fields.

**Highlights:** AC circuit simulation, Phasor input for circuits, Ideal for theoretical and real-world scenarios, Supports various electrical engineering courses, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Access | $1.99 | one-time |


## Frequently asked questions

### Is Opamp tools free?

Opamp tools is free to download, with in-app purchases available.

### Is AC Circuit Analyzer free?

AC Circuit Analyzer is free to download, with in-app purchases available.

### Do Opamp tools or AC Circuit Analyzer have ads?

Neither Opamp tools nor AC Circuit Analyzer shows ads.

### Which is updated more often, Opamp tools or AC Circuit Analyzer?

Opamp tools ships an update every 12 months, and AC Circuit Analyzer fortnightly. Most recently, Opamp tools was updated on May 16, 2026 and AC Circuit Analyzer on June 1, 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.*