# CBU Scanner vs Dark PDF

The clearest difference is in-app purchases: CBU Scanner at none against Dark PDF's 4. Dark PDF's advantage is update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Dark PDF sells 4 in-app purchases, starting at $1.99 per month. CBU Scanner asks for nothing beyond the download.

CBU Scanner ships an update every 3 months, Dark PDF monthly. The most recent releases landed on September 10, 2026 and July 22, 2026 respectively.

## The numbers

| Metric | CBU Scanner | Dark PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 4 MB | 11 MB |
| Requires iOS | **15.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fernando Zafe](https://appshunter.io/developer/1566809881) | [Muhammet Ozturk](https://appshunter.io/developer/1640983852) |

## What reviewers say

### CBU Scanner

[App page](https://appshunter.io/ios/app/cbu-scanner/id6462387782)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dark PDF

[App page](https://appshunter.io/ios/app/dark-pdf-night-mode-reader/id6754808094)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly - Unlimited - Black Friday | $1.99 | per month |
| Yearly - Unlimited Pdf,Black Friday | $9.99 | per year |
| Monthly - Unlimited PDF | $49.99 | per month |
| Yearly - Unlimited PDF | $99.99 | per year |


## Frequently asked questions

### Is CBU Scanner free?

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

### Is Dark PDF free?

Dark PDF is free to download, with in-app purchases available.

### Do CBU Scanner or Dark PDF have ads?

Neither CBU Scanner nor Dark PDF shows ads.

### Which is updated more often, CBU Scanner or Dark PDF?

CBU Scanner ships an update every 3 months, and Dark PDF monthly. Most recently, CBU Scanner was updated on September 10, 2026 and Dark PDF on July 22, 2026.

---

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