# Grade 9 Science Practice vs Grade 9 Math Mastery

The clearest difference is in-app purchases: Grade 9 Science Practice at none against Grade 9 Math Mastery's 2. Grade 9 Science Practice also leads on update cadence (every 11 days vs every 5 months) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Grade 9 Math Mastery sells 2 in-app purchases, starting at $4.99 per month. Grade 9 Science Practice asks for nothing beyond the download.

Grade 9 Science Practice ships an update every 11 days, Grade 9 Math Mastery every 5 months. The most recent releases landed on September 6, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Grade 9 Science Practice | Grade 9 Math Mastery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 5 months |
| Size | 24 MB | 7 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Manish Kumar](https://appshunter.io/developer/1854995154) | [Eager.app](https://appshunter.io/developer/1550371160) |

## What reviewers say

### Grade 9 Science Practice

[App page](https://appshunter.io/ios/app/grade-9-science-practice/id6757635913)

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

**In-app purchases:** none


### Grade 9 Math Mastery

[App page](https://appshunter.io/ios/app/grade-9-math-mastery/id6760619466)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grade 9 Math Mastery — Monthly | $4.99 | per month |
| Grade 9 Math Mastery — Annual | $29.99 | per year |


## Frequently asked questions

### Is Grade 9 Science Practice free?

Grade 9 Science Practice is free to download, with no in-app purchases.

### Is Grade 9 Math Mastery free?

Grade 9 Math Mastery is free to download, with in-app purchases available.

### Do Grade 9 Science Practice or Grade 9 Math Mastery have ads?

Neither Grade 9 Science Practice nor Grade 9 Math Mastery shows ads.

### Which is updated more often, Grade 9 Science Practice or Grade 9 Math Mastery?

Grade 9 Science Practice ships an update every 11 days, and Grade 9 Math Mastery every 5 months. Most recently, Grade 9 Science Practice was updated on September 6, 2026 and Grade 9 Math Mastery on September 10, 2026.

---

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