# Science 8 vs CosmosLock

The clearest difference is in-app purchases: Science 8 at none against CosmosLock's 2. Science 8 also leads on iOS requirement (11.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CosmosLock sells 2 in-app purchases, starting at $4.99 per month. Science 8 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Science 8 | CosmosLock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/science-8/id1082583626/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 32 MB | 21 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [IdeateGames](https://appshunter.io/developer/446654404) | [Patrick Deutsch](https://appshunter.io/developer/1871320930) |

## What reviewers say

### Science 8

[App page](https://appshunter.io/ios/app/science-8/id1082583626)

This app offers interactive tools and practice tests to help middle school students visualize and understand key science concepts. It includes simulations for density, molecular activity, and population dynamics, along with practice tests covering various science subjects.

**Highlights:** Interactive molecular activity demonstration, Density and buoyancy simulation, Comprehensive science practice tests, Category building exercises, Statistics exploration tool, Food web population dynamics simulation

**Features:** macOS Compatibility

**In-app purchases:** none


### CosmosLock

[App page](https://appshunter.io/ios/app/cosmoslock-science-focus/id6758907723)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| CosmosLock Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is Science 8 free?

Science 8 is free to download, with no in-app purchases.

### Is CosmosLock free?

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

### Do Science 8 or CosmosLock have ads?

Neither Science 8 nor CosmosLock shows ads.

### Which is updated more often, Science 8 or CosmosLock?

Science 8 ships an update every 3 months, and CosmosLock every 3 months. Most recently, Science 8 was updated on October 2, 2026 and CosmosLock on October 16, 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.*