# Sigma Science Education vs Science Tech Society Env

The clearest difference is iOS requirement: Science Tech Society Env at 12.0 against Sigma Science Education's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Sigma Science Education | Science Tech Society Env |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | — |
| Size | 71 MB | 23 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sigma Science - Online](https://appshunter.io/developer/1704733809) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Sigma Science Education

[App page](https://appshunter.io/ios/app/sigma-science-education/id6463662794)

**In-app purchases:** none


### Science Tech Society Env

[App page](https://appshunter.io/ios/app/science-tech-society-env/id6738346069)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sigma Science Education free?

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

### Is Science Tech Society Env free?

Science Tech Society Env is free to download, with no in-app purchases.

### Do Sigma Science Education or Science Tech Society Env have ads?

Neither Sigma Science Education nor Science Tech Society Env shows ads.

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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.*