# Sinomax 開戶通 vs Cathay Sec. HK

Sinomax 開戶通 and Cathay Sec. HK are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Sinomax 開戶通 ships an update every 3 months, Cathay Sec. HK every 2 months. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Sinomax 開戶通 | Cathay Sec. HK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 60 MB | 81 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [佳富達證券有限公司](https://appshunter.io/developer/1782066786) | [Cathay Securities (Hong Kong) Limited](https://appshunter.io/developer/1726104809) |

## What reviewers say

### Sinomax 開戶通

[App page](https://appshunter.io/ios/app/sinomax/id6742785157)

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

**In-app purchases:** none


### Cathay Sec. HK

[App page](https://appshunter.io/ios/app/cathay-sec-hk/id6762594077)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sinomax 開戶通 free?

Sinomax 開戶通 is free to download, with no in-app purchases.

### Is Cathay Sec. HK free?

Cathay Sec. HK is free to download, with no in-app purchases.

### Do Sinomax 開戶通 or Cathay Sec. HK have ads?

Neither Sinomax 開戶通 nor Cathay Sec. HK shows ads.

### Which is updated more often, Sinomax 開戶通 or Cathay Sec. HK?

Sinomax 開戶通 ships an update every 3 months, and Cathay Sec. HK every 2 months. Most recently, Sinomax 開戶通 was updated on October 30, 2026 and Cathay Sec. HK on November 9, 2026.

---

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