# ALD PDF vs Universal Reader Pro

The clearest difference is price: ALD PDF at Free against Universal Reader Pro's $0.99. ALD PDF also leads on in-app purchases (none vs 1) and iOS requirement (11.0 vs 18.0). Universal Reader Pro's advantage is ads (none vs shown) and update cadence (every 5 days vs fortnightly). On device support there is nothing between them.

ALD PDF is free to download; Universal Reader Pro costs $0.99 up front. Universal Reader Pro sells 1 one-off in-app purchase. ALD PDF asks for nothing beyond the download.

ALD PDF ships an update fortnightly, Universal Reader Pro every 5 days. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ALD PDF | Universal Reader Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 8 MB | 5 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aido Domingues](https://appshunter.io/developer/959460436) | [勇 陈](https://appshunter.io/developer/933173342) |

## What reviewers say

### ALD PDF

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

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

**In-app purchases:** none


### Universal Reader Pro

[App page](https://appshunter.io/ios/app/universal-reader-pro/id6807626833)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Universal Reader Pro | $9.99 | one-time |


## Frequently asked questions

### Is ALD PDF free?

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

### Is Universal Reader Pro free?

Universal Reader Pro costs $0.99, and also offers in-app purchases.

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

ALD PDF shows ads; Universal Reader Pro does not.

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

ALD PDF ships an update fortnightly, and Universal Reader Pro every 5 days. Most recently, ALD PDF was updated on October 1, 2026 and Universal Reader Pro on October 15, 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.*