# QRPDF vs Power Commander Delta

The clearest difference is in-app purchases: Power Commander Delta at none against QRPDF's 4. Power Commander Delta also leads on update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. QRPDF sells 4 one-off in-app purchases. Power Commander Delta asks for nothing beyond the download.

QRPDF ships an update every 3 months, Power Commander Delta every 2 weeks. Both last shipped on September 17, 2026.

## The numbers

| Metric | QRPDF | Power Commander Delta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 29 MB | 119 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZST](https://appshunter.io/developer/1274473128) | [Dynojet](https://appshunter.io/developer/686107623) |

## What reviewers say

### QRPDF

[App page](https://appshunter.io/ios/app/qrpdf/id6748396576)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip $1.99 | $1.99 | one-time |
| Tip $2.99 | $2.99 | one-time |
| Tip $4.99 | $4.99 | one-time |
| Tip $9.99 | $9.99 | one-time |


### Power Commander Delta

[App page](https://appshunter.io/ios/app/power-commander-delta/id6749016421)

**In-app purchases:** none


## Frequently asked questions

### Is QRPDF free?

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

### Is Power Commander Delta free?

Power Commander Delta is free to download, with no in-app purchases.

### Do QRPDF or Power Commander Delta have ads?

Neither QRPDF nor Power Commander Delta shows ads.

### Which is updated more often, QRPDF or Power Commander Delta?

QRPDF ships an update every 3 months, and Power Commander Delta every 2 weeks. Most recently, QRPDF was updated on September 17, 2026 and Power Commander Delta on September 17, 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.*