# AC Circuit Analyzer vs 555 Timer & Oscillators Guide

The clearest difference is in-app purchases: 555 Timer & Oscillators Guide at none against AC Circuit Analyzer's 1. AC Circuit Analyzer's advantage is ads (none vs shown) and update cadence (fortnightly vs every 5 months). On price and device support there is nothing between them.

Both are free to download. AC Circuit Analyzer sells 1 one-off in-app purchase. 555 Timer & Oscillators Guide asks for nothing beyond the download.

AC Circuit Analyzer ships an update fortnightly, 555 Timer & Oscillators Guide every 5 months. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | AC Circuit Analyzer | 555 Timer & Oscillators Guide |
| --- | --- | --- |
| 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 | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Free | — |
| Size | 35 MB | 24 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Paul Moat](https://appshunter.io/developer/1620489921) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### 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 |


### 555 Timer & Oscillators Guide

[App page](https://appshunter.io/ios/app/555-timer-and-oscillators-guide/id6504487994)

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

**In-app purchases:** none


## Frequently asked questions

### Is AC Circuit Analyzer free?

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

### Is 555 Timer & Oscillators Guide free?

555 Timer & Oscillators Guide is free to download, with no in-app purchases.

### Do AC Circuit Analyzer or 555 Timer & Oscillators Guide have ads?

555 Timer & Oscillators Guide shows ads; AC Circuit Analyzer does not.

### Which is updated more often, AC Circuit Analyzer or 555 Timer & Oscillators Guide?

AC Circuit Analyzer ships an update fortnightly, and 555 Timer & Oscillators Guide every 5 months. Most recently, AC Circuit Analyzer was updated on June 1, 2026 and 555 Timer & Oscillators Guide on September 24, 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.*