# SizeChina vs PolyULife

The clearest difference is update cadence: PolyULife at every 4 months against SizeChina's every 60 months. SizeChina's advantage is iOS requirement (12.0 vs 15.6). 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.

SizeChina ships an update every 60 months, PolyULife every 4 months. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | SizeChina | PolyULife |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/polyulife/id6444471174/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 60 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 23 MB | 38 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Apps Resource Centre, Hong Kong Baptist University](https://appshunter.io/developer/1375410542) | [The Hong Kong Polytechnic University](https://appshunter.io/developer/442903588) |

## What reviewers say

### SizeChina

[App page](https://appshunter.io/ios/app/sizechina/id1481186588)

**Features:** macOS Compatibility

**In-app purchases:** none


### PolyULife

[App page](https://appshunter.io/ios/app/polyulife/id6444471174)

This app provides students with convenient access to essential university services and their personal academic information. It streamlines access to student life resources within the university.

**Highlights:** Access to common university services, Personal student information, Streamlined access to academic life, University resource hub

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SizeChina free?

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

### Is PolyULife free?

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

### Do SizeChina or PolyULife have ads?

Neither SizeChina nor PolyULife shows ads.

### Which is updated more often, SizeChina or PolyULife?

SizeChina ships an update every 60 months, and PolyULife every 4 months. Most recently, SizeChina was updated on October 11, 2026 and PolyULife on October 14, 2026.

---

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