# OhmQuest vs Circuit Design & Simulation

The clearest difference is update cadence: Circuit Design & Simulation at every 2 days against OhmQuest's every 10 days. OhmQuest's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OhmQuest sells 1 one-off in-app purchase and Circuit Design & Simulation sells 2 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

OhmQuest ships an update every 10 days, Circuit Design & Simulation every 2 days. Both last shipped on November 13, 2026.

## The numbers

| Metric | OhmQuest | Circuit Design & Simulation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/circuit-design-and-simulation/id6822767192/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 21 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [建超 崔](https://appshunter.io/developer/1411749208) | [志义 范](https://appshunter.io/developer/6822509575) |

## What reviewers say

### OhmQuest

[App page](https://appshunter.io/ios/app/ohmquest-circuit-lab/id6797415284)

This app provides an interactive simulation lab for learning about electricity. It features progressive challenge levels and exam exercises to help users master concepts like current, voltage, and resistance. A free sandbox mode allows for experimentation with various components and instant parameter adjustments.

**Highlights:** Interactive circuit simulation, Progressive challenge levels, Exam exercises for practice, Free sandbox mode, Instant parameter adjustments, Local progress saving

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

**In-app purchases (1)**

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


### Circuit Design & Simulation

[App page](https://appshunter.io/ios/app/circuit-design-and-simulation/id6822767192)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Membership | $4.99 | per year |
| Lifetime Membership | $14.99 | one-time |


## Frequently asked questions

### Is OhmQuest free?

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

### Is Circuit Design & Simulation free?

Circuit Design & Simulation is free to download, with in-app purchases available.

### Do OhmQuest or Circuit Design & Simulation have ads?

Neither OhmQuest nor Circuit Design & Simulation shows ads.

### Which is updated more often, OhmQuest or Circuit Design & Simulation?

OhmQuest ships an update every 10 days, and Circuit Design & Simulation every 2 days. Most recently, OhmQuest was updated on November 13, 2026 and Circuit Design & Simulation on November 13, 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.*