Comparison

Knox Grammar School vs 90PLUS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Class information for users

Free

📚 Education

No ratingsView app →

About

Knox Grammar School

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

Read full description

Bridge the gap between home and school with the Knox Grammar School app, developed by Digistorm. Receive instant information about Knox Grammar School, push notifications for urgent updates, school newsletters and more.

About

90PLUS

Features

Read full description

90Plus Education is an educational training organization with multiple branches in Sydney, providing class reminders and other information services to its teachers and students through this app.

Screenshots

Knox Grammar School2 screens

90PLUS4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard1 real difference · 7 level

Knox Grammar School versus 90PLUS: the parameters behind the verdict, then further details
Parameter	Knox Grammar School	90PLUS
Price	Free	Free
Positive reviews	50.0% of reviews	—
Update frequency	Every 3 months	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0	13.0
Further details — not scored
Size	29 MB	32 MB
Age rating	4+	4+
Developer	Knox Grammar School	Lili Fang

In-app purchases

None

Knox Grammar School

No in-app purchases

None

90PLUS

No in-app purchases

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.