Zhang's HSC vs 90PLUS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zhang's HSC
Manage your account, book classes, and stay connected with updates and announcements. Easily message the organization with any questions or to share information. Follow the public feed for promotions and shared content.
- Account management
- Class and event booking
- Direct messaging
- Public feed for announcements
- Promotions and content sharing
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The Zhang's HSC app makes it very easy for you to manage your Zhang's HSC account, book into our classes and events and keep in touch with us. You can easily message us if you have a question or want to share something with us. You can also follow our public feed to see any announcements we make, promos we run, or content we share.
90PLUS
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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
Verdict
The clearest difference is update cadence: 90PLUS at every 3 weeks against Zhang's HSC's every 3 months. 90PLUS also leads on iOS requirement (13.0 vs 15.1). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Zhang's HSC ships an update every 3 months, 90PLUS every 3 weeks. Both last shipped on October 8, 2026.
| Parameter | Zhang's HSC | 90PLUS |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Momence, Inc. | Lili Fang |
In-app purchases
Zhang's HSC
No in-app purchases
90PLUS
No in-app purchases
