# ALD PDF vs Checar 3

The clearest difference is ads: Checar 3 at none against ALD PDF's shown. Checar 3 also leads on update cadence (weekly vs fortnightly). ALD PDF's advantage is iOS requirement (11.0 vs 15.1). On price, 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.

ALD PDF ships an update fortnightly, Checar 3 weekly. The most recent releases landed on October 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ALD PDF | Checar 3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Weekly** |
| Size | 8 MB | 63 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aido Domingues](https://appshunter.io/developer/959460436) | [AutoTech](https://appshunter.io/developer/1322054491) |

## 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


### Checar 3

[App page](https://appshunter.io/ios/app/checar-3/id6759610888)

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

**In-app purchases:** none


## Frequently asked questions

### Is ALD PDF free?

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

### Is Checar 3 free?

Checar 3 is free to download, with no in-app purchases.

### Do ALD PDF or Checar 3 have ads?

ALD PDF shows ads; Checar 3 does not.

### Which is updated more often, ALD PDF or Checar 3?

ALD PDF ships an update fortnightly, and Checar 3 weekly. Most recently, ALD PDF was updated on October 1, 2026 and Checar 3 on October 28, 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.*