# PrismQR vs PDF Compact

The clearest difference is ads: PDF Compact at none against PrismQR's shown. PrismQR's advantage is iOS requirement (18.0 vs 26.0). On price, update cadence, 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.

PrismQR ships an update every 6 months, PDF Compact every 5 months. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PrismQR | PDF Compact |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 5 months** |
| Size | 5 MB | 22 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [BYNET](https://appshunter.io/developer/1811735131) | [Gerhard Lentschik](https://appshunter.io/developer/629988041) |

## What reviewers say

### PrismQR

[App page](https://appshunter.io/ios/app/prismqr-qr-reader-and-maker/id6756878824)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Compact

[App page](https://appshunter.io/ios/app/pdf-compact/id6757109481)

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

**In-app purchases:** none


## Frequently asked questions

### Is PrismQR free?

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

### Is PDF Compact free?

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

### Do PrismQR or PDF Compact have ads?

PrismQR shows ads; PDF Compact does not.

### Which is updated more often, PrismQR or PDF Compact?

PrismQR ships an update every 6 months, and PDF Compact every 5 months. Most recently, PrismQR was updated on October 28, 2026 and PDF Compact on October 31, 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.*