# QRPDF vs Clear Calc

The clearest difference is update cadence: Clear Calc at every 2 weeks against QRPDF's every 3 months. QRPDF's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. QRPDF sells 4 one-off in-app purchases and Clear Calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

QRPDF ships an update every 3 months, Clear Calc every 2 weeks. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | QRPDF | Clear Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 29 MB | 1 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZST](https://appshunter.io/developer/1274473128) | [martin zly](https://appshunter.io/developer/519822448) |

## 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 |


### Clear Calc

[App page](https://appshunter.io/ios/app/clear-calc-native-calculator/id6760623189)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full App | $1.99 | one-time |


## Frequently asked questions

### Is QRPDF free?

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

### Is Clear Calc free?

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

### Do QRPDF or Clear Calc have ads?

Neither QRPDF nor Clear Calc shows ads.

### Which is updated more often, QRPDF or Clear Calc?

QRPDF ships an update every 3 months, and Clear Calc every 2 weeks. Most recently, QRPDF was updated on October 28, 2026 and Clear Calc on November 5, 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.*