# My Science vs Stem Coach Mobile App

The clearest difference is in-app purchases: My Science at none against Stem Coach Mobile App's 2. My Science also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Stem Coach Mobile App sells 2 in-app purchases, starting at $14.99 per month. My Science asks for nothing beyond the download.

My Science ships an update every 5 days, Stem Coach Mobile App weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | My Science | Stem Coach Mobile App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Size | 2 MB | 4 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [James Dai Limited](https://appshunter.io/developer/1501761384) | [Vinay Yadav](https://appshunter.io/developer/6774858395) |

## What reviewers say

### My Science

[App page](https://appshunter.io/ios/app/my-science/id6762091743)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Stem Coach Mobile App

[App page](https://appshunter.io/ios/app/stem-coach-mobile-app/id6774858393)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Family Monthly | $14.99 | per month |
| Family Yearly | $119.99 | per year |


## Frequently asked questions

### Is My Science free?

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

### Is Stem Coach Mobile App free?

Stem Coach Mobile App is free to download, with in-app purchases available.

### Do My Science or Stem Coach Mobile App have ads?

Neither My Science nor Stem Coach Mobile App shows ads.

### Which is updated more often, My Science or Stem Coach Mobile App?

My Science ships an update every 5 days, and Stem Coach Mobile App weekly. Most recently, My Science was updated on October 31, 2026 and Stem Coach Mobile App on October 31, 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.*