# PDF Reader vs Commercial Diving E

The clearest difference is in-app purchases: PDF Reader at none against Commercial Diving E's 3. Commercial Diving E's advantage is ads (none vs shown) and update cadence (weekly vs every 113 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Commercial Diving E sells 3 in-app purchases, starting at $4.99 per month. PDF Reader asks for nothing beyond the download.

PDF Reader ships an update every 113 months, Commercial Diving E weekly. The most recent releases landed on September 26, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | PDF Reader | Commercial Diving E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 113 months | **Weekly** |
| Size | 9 MB | 141 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aishvarya Sadasivam](https://appshunter.io/developer/1062048241) | [Jorge Rey Pazos](https://appshunter.io/developer/1840390491) |

## What reviewers say

### PDF Reader

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Commercial Diving E

[App page](https://appshunter.io/ios/app/commercial-diving-e-logbook/id6752651086)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium subscription - Monthly | $4.99 | per month |
| Premium subscription-Quarterly | $12.99 | per 3 months |
| Premium subscription - Annualy | $49.99 | per year |


## Frequently asked questions

### Is PDF Reader free?

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

### Is Commercial Diving E free?

Commercial Diving E is free to download, with in-app purchases available.

### Do PDF Reader or Commercial Diving E have ads?

PDF Reader shows ads; Commercial Diving E does not.

### Which is updated more often, PDF Reader or Commercial Diving E?

PDF Reader ships an update every 113 months, and Commercial Diving E weekly. Most recently, PDF Reader was updated on September 26, 2026 and Commercial Diving E on September 27, 2026.

---

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