# PolyU Staff Mobile App vs ECEAA

The clearest difference is update cadence: ECEAA at every 2 weeks against PolyU Staff Mobile App's every 7 months. ECEAA 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.

PolyU Staff Mobile App ships an update every 7 months, ECEAA every 2 weeks. The most recent releases landed on October 14, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | PolyU Staff Mobile App | ECEAA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Size | 25 MB | 125 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Hong Kong Polytechnic University](https://appshunter.io/developer/442903588) | [Palmify](https://appshunter.io/developer/1719494206) |

## What reviewers say

### PolyU Staff Mobile App

[App page](https://appshunter.io/ios/app/polyu-staff-mobile-app/id1605725684)

**Features:** macOS Compatibility

**In-app purchases:** none


### ECEAA

[App page](https://appshunter.io/ios/app/eceaa/id6473687455)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is PolyU Staff Mobile App free?

PolyU Staff Mobile App is free to download, with no in-app purchases.

### Is ECEAA free?

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

### Do PolyU Staff Mobile App or ECEAA have ads?

Neither PolyU Staff Mobile App nor ECEAA shows ads.

### Which is updated more often, PolyU Staff Mobile App or ECEAA?

PolyU Staff Mobile App ships an update every 7 months, and ECEAA every 2 weeks. Most recently, PolyU Staff Mobile App was updated on October 14, 2026 and ECEAA on September 19, 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.*