# Square Root Marbles vs Biomedical Science Exam Prep

The clearest difference is price: Square Root Marbles at Free against Biomedical Science Exam Prep's $2.99. Square Root Marbles also leads on update cadence (every 4 days vs every 56 months) and iOS requirement (10.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Square Root Marbles is free to download; Biomedical Science Exam Prep costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Square Root Marbles ships an update every 4 days, Biomedical Science Exam Prep every 56 months. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Square Root Marbles | Biomedical Science Exam Prep |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[2.0 (3 ratings)](https://appshunter.io/ios/app/square-root-marbles/id1156046711/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 56 months |
| Monetization | Free | — |
| Size | 22 MB | 9 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [One on Epsilon Pty Ltd](https://appshunter.io/developer/1156046530) | [Tourkia CHIHI](https://appshunter.io/developer/1105976811) |

## What reviewers say

### Square Root Marbles

[App page](https://appshunter.io/ios/app/square-root-marbles/id1156046711)

This educational game makes learning square roots fun for the whole family. Navigate a marble through challenging levels, using operators and square roots to reach the correct destination value before time runs out.

**Highlights:** Square root practice, Action-based gameplay, Simple arithmetic operators, Timed challenges, Foundational algebraic thinking, Ad-free experience

**Features:** macOS Compatibility

**In-app purchases:** none


### Biomedical Science Exam Prep

[App page](https://appshunter.io/ios/app/biomedical-science-exam-prep/id1227775186)

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

**In-app purchases:** none


## Frequently asked questions

### Is Square Root Marbles free?

Square Root Marbles is free to download, with no in-app purchases.

### Is Biomedical Science Exam Prep free?

Biomedical Science Exam Prep costs $2.99, with no in-app purchases.

### Do Square Root Marbles or Biomedical Science Exam Prep have ads?

Neither Square Root Marbles nor Biomedical Science Exam Prep shows ads.

### Which is updated more often, Square Root Marbles or Biomedical Science Exam Prep?

Square Root Marbles ships an update every 4 days, and Biomedical Science Exam Prep every 56 months. Most recently, Square Root Marbles was updated on October 1, 2026 and Biomedical Science Exam Prep on October 12, 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.*