# PDF Reader vs ALD PDF

The clearest difference is update cadence: ALD PDF at fortnightly against PDF Reader's every 113 months. ALD PDF also leads on iOS requirement (11.0 vs 14.0). 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.

PDF Reader ships an update every 113 months, ALD PDF fortnightly. The most recent releases landed on September 14, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | PDF Reader | ALD PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 113 months | **Fortnightly** |
| Size | 9 MB | 8 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aishvarya Sadasivam](https://appshunter.io/developer/1062048241) | [Aido Domingues](https://appshunter.io/developer/959460436) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-view/id1084658552)

**Features:** macOS Compatibility

**In-app purchases:** none


### ALD PDF

[App page](https://appshunter.io/ios/app/ald-pdf/id6476907535)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Reader free?

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

### Is ALD PDF free?

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

### Do PDF Reader or ALD PDF have ads?

Both PDF Reader and ALD PDF show ads.

### Which is updated more often, PDF Reader or ALD PDF?

PDF Reader ships an update every 113 months, and ALD PDF fortnightly. Most recently, PDF Reader was updated on September 14, 2026 and ALD PDF on August 31, 2026.

---

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