# Tài Liệu PDF vs libDNPU

The clearest difference is device support: Tài Liệu PDF at 3 against libDNPU's —. On price, in-app purchases and iOS requirement 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 | Tài Liệu PDF | libDNPU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 3 months | — |
| Size | 42 MB | 27 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 17+ |
| Developer | [Hung Phuoc Tran](https://appshunter.io/developer/1003648744) | [Pyramid Software and Consulting Company Limited](https://appshunter.io/developer/885416042) |

## What reviewers say

### Tài Liệu PDF

[App page](https://appshunter.io/ios/app/tai-lieu-pdf/id6444025550)

**Features:** macOS Compatibility

**In-app purchases:** none


### libDNPU

[App page](https://appshunter.io/ios/app/libdnpu/id6504300701)

**In-app purchases:** none


## Frequently asked questions

### Is Tài Liệu PDF free?

Tài Liệu PDF is free to download, with no in-app purchases.

### Is libDNPU free?

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

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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.*