# PAPSTAR B2B App vs ProCalf

The clearest difference is update cadence: ProCalf at every 6 weeks against PAPSTAR B2B App's every 11 months. PAPSTAR B2B App's advantage is iOS requirement (11.0 vs 15.0). On price, ads, 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.

PAPSTAR B2B App ships an update every 11 months, ProCalf every 6 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PAPSTAR B2B App | ProCalf |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Size | 51 MB | 80 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [PAPSTAR GmbH](https://appshunter.io/developer/1156115584) | [MSG Nederland N.V.](https://appshunter.io/developer/623179599) |

## What reviewers say

### PAPSTAR B2B App

[App page](https://appshunter.io/ios/app/papstar-b2b-app/id1156115585)

**Features:** macOS Compatibility

**In-app purchases:** none


### ProCalf

[App page](https://appshunter.io/ios/app/procalf/id1610314198)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PAPSTAR B2B App free?

PAPSTAR B2B App is free to download, with no in-app purchases.

### Is ProCalf free?

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

### Do PAPSTAR B2B App or ProCalf have ads?

Neither PAPSTAR B2B App nor ProCalf shows ads.

### Which is updated more often, PAPSTAR B2B App or ProCalf?

PAPSTAR B2B App ships an update every 11 months, and ProCalf every 6 weeks. Most recently, PAPSTAR B2B App was updated on November 2, 2026 and ProCalf on November 3, 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.*