# Circuit Simulator Q vs Simubus

The clearest difference is update cadence: Circuit Simulator Q at every 2 days against Simubus's fortnightly. Circuit Simulator Q also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Circuit Simulator Q sells 2 in-app purchases, starting at $4.99 per 7 days and Simubus sells 3 in-app purchases, starting at $12.90 per month. Whichever you choose, the download price is not the number that matters.

Circuit Simulator Q ships an update every 2 days, Simubus fortnightly. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Circuit Simulator Q | Simubus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/circuit-simulator-q/id6742368702/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 190 MB | 49 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ali Mert TUFEKCI](https://appshunter.io/developer/1483311309) | [Chongqing Shengniu Technology Co., Ltd](https://appshunter.io/developer/1868286779) |

## What reviewers say

### Circuit Simulator Q

[App page](https://appshunter.io/ios/app/circuit-simulator-q/id6742368702)

Design and simulate complex digital logic circuits with an intuitive interface. Explore basic gates, build counters, ALUs, and even create your own processors. This tool brings your digital electronics ideas to life.

**Highlights:** Advanced circuit design, Qnet netlist algorithm, Build counter circuits and flip-flops, Construct Arithmetic Logic Units (ALUs), Design custom processors

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Yearly Plan | $29.99 | per year |


### Simubus

[App page](https://appshunter.io/ios/app/simubus/id6757686667)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $12.90 | per month |
| Yearly Pro Subscription | $69.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Circuit Simulator Q free?

Circuit Simulator Q is free to download, with in-app purchases available.

### Is Simubus free?

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

### Do Circuit Simulator Q or Simubus have ads?

Neither Circuit Simulator Q nor Simubus shows ads.

### Which is updated more often, Circuit Simulator Q or Simubus?

Circuit Simulator Q ships an update every 2 days, and Simubus fortnightly. Most recently, Circuit Simulator Q was updated on October 17, 2026 and Simubus on October 14, 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.*