# PDF离线版 vs UBAA

The clearest difference is iOS requirement: PDF离线版 at 11.0 against UBAA's 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.

## The numbers

| Metric | PDF离线版 | UBAA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ubaa/id6768861821/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free |
| Size | 22 MB | 55 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tianjin Jinruan Tianxia Technology Co., Ltd.](https://appshunter.io/developer/1619559631) | [沐衡 李](https://appshunter.io/developer/1896609602) |

## What reviewers say

### PDF离线版

[App page](https://appshunter.io/ios/app/pdf/id1627812135)

**Features:** macOS Compatibility

**In-app purchases:** none


### UBAA

[App page](https://appshunter.io/ios/app/ubaa/id6768861821)

A cross-platform campus service aggregator designed for Beihang University students. It provides a one-stop solution for academic needs including class schedules, exams, grades, attendance, and teaching evaluations.

**Highlights:** Class schedule management, Exam and grade tracking, Attendance monitoring, Teaching evaluation system, Cross-platform compatibility

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF离线版 free?

PDF离线版 is free to download, with no in-app purchases.

### Is UBAA free?

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

### Do PDF离线版 or UBAA have ads?

Neither PDF离线版 nor UBAA shows ads.

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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.*