# BlikBrein vs Grade 9 Science Practice

The clearest difference is in-app purchases: Grade 9 Science Practice at none against BlikBrein's 8. Grade 9 Science Practice also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. BlikBrein sells 8 in-app purchases, starting at $6.99 per month. Grade 9 Science Practice asks for nothing beyond the download.

BlikBrein ships an update weekly, Grade 9 Science Practice every 11 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BlikBrein | Grade 9 Science Practice |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Size | 99 MB | 24 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Helena Rossouw](https://appshunter.io/developer/1563554041) | [Manish Kumar](https://appshunter.io/developer/1854995154) |

## What reviewers say

### BlikBrein

[App page](https://appshunter.io/ios/app/blikbrein-grades-8-12-maths/id6751248706)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $6.99 | per month |
| Full Master | $6.99 | per month |
| Grade 8 Practice Booklet | $3.99 | one-time |
| Grade 10 Practice Booklet | $3.99 | one-time |
| Grade 9 Practice Booklet | $3.99 | one-time |
| Grade 8 Practice Booklet | $6.99 | one-time |
| Grade 9 Practice Booklet | $6.99 | one-time |
| Grade 10 Practice Booklet | $6.99 | one-time |


### 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


## Frequently asked questions

### Is BlikBrein free?

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

### Is Grade 9 Science Practice free?

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

### Do BlikBrein or Grade 9 Science Practice have ads?

Neither BlikBrein nor Grade 9 Science Practice shows ads.

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

BlikBrein ships an update weekly, and Grade 9 Science Practice every 11 days. Most recently, BlikBrein was updated on November 5, 2026 and Grade 9 Science Practice 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.*