# AC Circuit Analyzer vs Thermonator Thermodynamics

The clearest difference is monetization model: AC Circuit Analyzer at free against Thermonator Thermodynamics's freemium. AC Circuit Analyzer also leads on iOS requirement (11.0 vs 15.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. AC Circuit Analyzer sells 1 one-off in-app purchase and Thermonator Thermodynamics sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for AC Circuit Analyzer against 5.0 for Thermonator Thermodynamics. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

AC Circuit Analyzer ships an update fortnightly, Thermonator Thermodynamics every 3 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | AC Circuit Analyzer | Thermonator Thermodynamics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/ac-circuit-analyzer/id6446215739/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/thermonator-thermodynamics/id6749546059/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Free** | Freemium |
| Size | 35 MB | 46 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Moat](https://appshunter.io/developer/1620489921) | [Tomas Gomez Martin](https://appshunter.io/developer/1831038451) |

## 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 |


### Thermonator Thermodynamics

[App page](https://appshunter.io/ios/app/thermonator-thermodynamics/id6749546059)

This app serves as a comprehensive thermodynamic calculator, assisting with problems from engineering textbooks. It quickly computes steam tables for various substances and offers educational aids like step-by-step calculations and concept reminders.

**Highlights:** Thermodynamic calculations, Steam table computation, Step-by-step solutions, Interactive graphs, Unit conversion, Results sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - 1 week | $2.99 | per 7 days |
| Premium - 1 month | $3.99 | per month |
| Premium - 6 months | $4.99 | per 6 months |
| Premium - 1 month | $5.99 | per month |
| Premium Student - 6 months | $8.99 | per 6 months |
| Premium Pro - 6 months | $9.99 | per 6 months |


## Frequently asked questions

### Is AC Circuit Analyzer free?

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

### Is Thermonator Thermodynamics free?

Thermonator Thermodynamics is free to download, with in-app purchases available.

### Which has better reviews, AC Circuit Analyzer or Thermonator Thermodynamics?

AC Circuit Analyzer and Thermonator Thermodynamics are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do AC Circuit Analyzer or Thermonator Thermodynamics have ads?

Neither AC Circuit Analyzer nor Thermonator Thermodynamics shows ads.

### Which is updated more often, AC Circuit Analyzer or Thermonator Thermodynamics?

AC Circuit Analyzer ships an update fortnightly, and Thermonator Thermodynamics every 3 weeks. Most recently, AC Circuit Analyzer was updated on November 3, 2026 and Thermonator Thermodynamics on November 5, 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.*