# The Earth Science Flashcards vs CloudLabs Solubility

The clearest difference is price: CloudLabs Solubility at Free against The Earth Science Flashcards's $1.99. CloudLabs Solubility also leads on iOS requirement (9.0 vs 11.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

CloudLabs Solubility is free to download; The Earth Science Flashcards costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

The Earth Science Flashcards ships an update every 41 months, CloudLabs Solubility every 29 months. The most recent releases landed on October 26, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | The Earth Science Flashcards | CloudLabs Solubility |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 29 months** |
| Size | 15 MB | 77 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hasan Cakir](https://appshunter.io/developer/814343093) | [Jiovany Orozco](https://appshunter.io/developer/1114670847) |

## What reviewers say

### The Earth Science Flashcards

[App page](https://appshunter.io/ios/app/the-earth-science-flashcards/id1403833043)

**Features:** macOS Compatibility

**In-app purchases:** none


### CloudLabs Solubility

[App page](https://appshunter.io/ios/app/cloudlabs-solubility/id1596359210)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Earth Science Flashcards free?

The Earth Science Flashcards costs $1.99, with no in-app purchases.

### Is CloudLabs Solubility free?

CloudLabs Solubility is free to download, with no in-app purchases.

### Do The Earth Science Flashcards or CloudLabs Solubility have ads?

Neither The Earth Science Flashcards nor CloudLabs Solubility shows ads.

### Which is updated more often, The Earth Science Flashcards or CloudLabs Solubility?

The Earth Science Flashcards ships an update every 41 months, and CloudLabs Solubility every 29 months. Most recently, The Earth Science Flashcards was updated on October 26, 2026 and CloudLabs Solubility on November 7, 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.*