# Zhang's HSC vs 90PLUS

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.

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.

## The numbers

| Metric | Zhang's HSC | 90PLUS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 55 MB | 32 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Momence, Inc.](https://appshunter.io/developer/1577856011) | [Lili Fang](https://appshunter.io/developer/1762180060) |

## What reviewers say

### Zhang's HSC

[App page](https://appshunter.io/ios/app/zhangs-hsc/id6503916650)

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.

**Highlights:** Account management, Class and event booking, Direct messaging, Public feed for announcements, Promotions and content sharing

**Features:** macOS Compatibility, Apple Wallet, 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 Zhang's HSC free?

Zhang's HSC is free to download, with no in-app purchases.

### Is 90PLUS free?

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

### Do Zhang's HSC or 90PLUS have ads?

Neither Zhang's HSC nor 90PLUS shows ads.

### Which is updated more often, Zhang's HSC or 90PLUS?

Zhang's HSC ships an update every 3 months, and 90PLUS every 3 weeks. Most recently, Zhang's HSC was updated on October 8, 2026 and 90PLUS on October 8, 2026.

---

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