# RockSpin vs ChemOasis

The clearest difference is in-app purchases: ChemOasis at none against RockSpin's 3. ChemOasis also leads on update cadence (daily vs every 2 days). RockSpin's advantage is iOS requirement (16.0 vs 26.5). On price, ads and device support there is nothing between them.

Both are free to download. RockSpin sells 3 in-app purchases, starting at $9.99 per month. ChemOasis asks for nothing beyond the download.

RockSpin ships an update every 2 days, ChemOasis daily. The most recent releases landed on October 4, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | RockSpin | ChemOasis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chemoasis/id6809320316/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Monetization | — | Free |
| Size | 81 MB | 5 MB |
| Requires iOS | **16.0** | 26.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [WOOHYUN JEON](https://appshunter.io/developer/1823158371) | [Manoj Manna](https://appshunter.io/developer/6809320618) |

## What reviewers say

### RockSpin

[App page](https://appshunter.io/ios/app/rockspin/id6747876962)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Yearly | $99.99 | per year |
| 1,000 Credits | $14.99 | one-time |


### ChemOasis

[App page](https://appshunter.io/ios/app/chemoasis/id6809320316)

An interactive platform for students to learn chemistry and other sciences with tools for concept explanation, practice questions, and guided learning. Instructors can use it to check answers and create worksheets.

**Highlights:** Interactive science learning, Chemistry concept explanation, Practice question generation, Worksheet creation, Guided learning modules, Chemical structure exploration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RockSpin free?

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

### Is ChemOasis free?

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

### Do RockSpin or ChemOasis have ads?

Neither RockSpin nor ChemOasis shows ads.

### Which is updated more often, RockSpin or ChemOasis?

RockSpin ships an update every 2 days, and ChemOasis daily. Most recently, RockSpin was updated on October 4, 2026 and ChemOasis on October 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*