# Knox Grammar School vs 90PLUS

The clearest difference is update cadence: 90PLUS at every 3 weeks against Knox Grammar School's every 3 months. 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.

Knox Grammar School ships an update every 3 months, 90PLUS every 3 weeks. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Knox Grammar School | 90PLUS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 29 MB | 32 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Knox Grammar School](https://appshunter.io/developer/1438375119) | [Lili Fang](https://appshunter.io/developer/1762180060) |

## What reviewers say

### Knox Grammar School

[App page](https://appshunter.io/ios/app/knox-grammar-school/id1438375120)

Stay connected with the school community through instant updates, newsletters, and important announcements. This app provides a direct line of communication between home and school.

**Highlights:** Instant school information, Push notifications for urgent updates, Access school newsletters, Direct home-school communication, Developed by Digistorm

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

**In-app purchases:** none


### 90PLUS

[App page](https://appshunter.io/ios/app/90plus/id6624304349)

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

**In-app purchases:** none


## Frequently asked questions

### Is Knox Grammar School free?

Knox Grammar School is free to download, with no in-app purchases.

### Is 90PLUS free?

90PLUS is free to download, with no in-app purchases.

### Do Knox Grammar School or 90PLUS have ads?

Neither Knox Grammar School nor 90PLUS shows ads.

### Which is updated more often, Knox Grammar School or 90PLUS?

Knox Grammar School ships an update every 3 months, and 90PLUS every 3 weeks. Most recently, Knox Grammar School was updated on October 16, 2026 and 90PLUS on October 8, 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.*