# Building Atoms and Isotopes vs Cube Algorithms X

The clearest difference is review sentiment: Cube Algorithms X at 100% against Building Atoms and Isotopes's 33%. Cube Algorithms X also leads on rating (4.8 vs 3.5) and update cadence (every 3 months vs every 18 months). Building Atoms and Isotopes's advantage is price ($1.99 vs $5.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Building Atoms and Isotopes costs $1.99 and Cube Algorithms X $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Cube Algorithms X holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: Cube Algorithms X has 32 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 33% of Building Atoms and Isotopes's written reviews are positive against 100% of Cube Algorithms X's.

Building Atoms and Isotopes ships an update every 18 months, Cube Algorithms X every 3 months. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Building Atoms and Isotopes | Cube Algorithms X |
| --- | --- | --- |
| Price | **$1.99** | $5.99 |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/building-atoms-and-isotopes/id436996679/reviews) | **[4.8 (32 ratings)](https://appshunter.io/ios/app/cube-algorithms-x/id1546834302/reviews)** |
| Number of ratings | 2 | **32** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 10 MB | 14 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Carolina Biological Supply](https://appshunter.io/developer/413708533) | [巍 赵](https://appshunter.io/developer/1136527068) |

## What reviewers say

### Building Atoms and Isotopes

[App page](https://appshunter.io/ios/app/building-atoms-and-isotopes/id436996679)

Explore the composition of elements by building atoms, ions, and isotopes. Select the correct number of protons, neutrons, and electrons. Includes atomic theory information and an interactive periodic table on iPad.

**Highlights:** Build atoms, ions, and isotopes, Select protons, neutrons, and electrons, Atomic theory information, Interactive periodic table (iPad), Element composition exploration

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

**In-app purchases:** none


### Cube Algorithms X

[App page](https://appshunter.io/ios/app/cube-algorithms-x/id1546834302)

This app provides a comprehensive collection of algorithms for various magic cube puzzles. It features realistic 3D graphics, custom session creation, and support for iCloud synchronization. Learn and master complex cube solving techniques with detailed tutorials.

**Highlights:** Supports 2x2x2 to 4x4x4 cubes, Includes F2L, OLL, PLL, and more, Realistic 3D graphics and animation, Create custom algorithm sessions, iCloud synchronization, Customizable puzzle and fingertrick colors

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

**In-app purchases:** none


## Frequently asked questions

### Is Building Atoms and Isotopes free?

Building Atoms and Isotopes costs $1.99, with no in-app purchases.

### Is Cube Algorithms X free?

Cube Algorithms X costs $5.99, with no in-app purchases.

### Which has better reviews, Building Atoms and Isotopes or Cube Algorithms X?

Cube Algorithms X is rated higher. Building Atoms and Isotopes averages 3.5 out of 5 from 2 ratings, while Cube Algorithms X averages 4.8 from 32 ratings.

### Do Building Atoms and Isotopes or Cube Algorithms X have ads?

Neither Building Atoms and Isotopes nor Cube Algorithms X shows ads.

### Which is updated more often, Building Atoms and Isotopes or Cube Algorithms X?

Building Atoms and Isotopes ships an update every 18 months, and Cube Algorithms X every 3 months. Most recently, Building Atoms and Isotopes was updated on October 12, 2026 and Cube Algorithms X on October 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.*