# Atomas vs Circuit Design 3D Simulator

The clearest difference is review sentiment: Atomas at 94% against Circuit Design 3D Simulator's 42%. Atomas also leads on rating (4.8 vs 3.9) and ads (none vs shown). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Atomas sells 5 one-off in-app purchases and Circuit Design 3D Simulator sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Atomas holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Atomas has 3.4K ratings behind it against 202, so its average is the more settled of the two. Written reviews point the same way: 94% of Atomas's written reviews are positive against 42% of Circuit Design 3D Simulator's.

Atomas ships an update monthly, Circuit Design 3D Simulator every 4 months. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Atomas | Circuit Design 3D Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.4K ratings)](https://appshunter.io/ios/app/atomas/id953603155/reviews)** | [3.9 (202 ratings)](https://appshunter.io/ios/app/circuit-design-3d-simulator/id6447177915/reviews) |
| Number of ratings | **3.4K** | 202 |
| Positive reviews | **93.9% of reviews** | 42.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 33 MB | 137 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Max Gittel](https://appshunter.io/developer/764787722) | [KUNHAR GAMES LTD](https://appshunter.io/developer/1613476123) |

## What reviewers say

### Atomas

[App page](https://appshunter.io/ios/app/atomas/id953603155)

Combine atoms to create new elements in this addictive puzzle game. Strategize to prevent your universe from overflowing and unlock special charms to aid your progress. Compete with friends for the highest score.

**Highlights:** Atom fusion mechanics, Element creation, Chain reactions, Lucky charms, Multiple game modes, Score comparison

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads & Instant Modes Unlock | $0.99 | one-time |
| 2 Antimatter | $1.99 | one-time |
| 5 Antimatter | $2.99 | one-time |
| 10 Antimatter | $4.99 | one-time |
| 12 Antimatter | $4.99 | one-time |

**What reviewers like**

- 🚀 Addictive gameplay
- 👍 Simple and intuitive
- 🔒 No ads or in-app purchases
- 🧠 Helps learn periodic table
- 🎨 Polished and visually appealing

**What reviewers complain about**

- 🐛 Occasional glitches and bugs
- 🤔 Difficulty can feel arbitrary at times
- 🎨 Similar atom colors can be confusing
- 🔍 Lack of clear tutorials or explanations

**Reported bugs**

- Undo button not working as expected
- Game crashing when sharing scores
- Inconsistent atom behavior with certain power-ups

**Requested features**

- More game modes and challenges
- Ability to save progress and sync across devices
- Option to adjust atom colors and sizes
- Achievements and leaderboards


### Circuit Design 3D Simulator

[App page](https://appshunter.io/ios/app/circuit-design-3d-simulator/id6447177915)

Design and test electronic circuits in a virtual simulation game. Fulfill customer orders by selecting components, building circuits on a virtual breadboard, and testing them with real-time feedback and analysis tools. Improve your problem-solving skills while learning about electronics.

**Highlights:** Virtual circuit design and testing, Real-time simulation feedback, Drag-and-drop component placement, Variety of electronic components, Circuit analysis tools (oscilloscope, voltmeter), Multiple game modes (free play, challenges)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy 500 Coins | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Buy 1500 Coins | $2.99 | one-time |


## Frequently asked questions

### Is Atomas free?

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

### Is Circuit Design 3D Simulator free?

Circuit Design 3D Simulator is free to download, with in-app purchases available.

### Which has better reviews, Atomas or Circuit Design 3D Simulator?

Atomas is rated higher. Atomas averages 4.8 out of 5 from 3.4K ratings, while Circuit Design 3D Simulator averages 3.9 from 202 ratings.

### Do Atomas or Circuit Design 3D Simulator have ads?

Circuit Design 3D Simulator shows ads; Atomas does not.

### Which is updated more often, Atomas or Circuit Design 3D Simulator?

Atomas ships an update monthly, and Circuit Design 3D Simulator every 4 months. Most recently, Atomas was updated on October 21, 2026 and Circuit Design 3D Simulator on October 18, 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.*