# Prayerbook for Catholics vs Jstamp Store

The clearest difference is device support: Prayerbook for Catholics at 4 against Jstamp Store's 1. Jstamp Store's advantage is iOS requirement (16.0 vs 27.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Prayerbook for Catholics ships an update every 2 months, Jstamp Store every 6 weeks. The most recent releases landed on November 7, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Prayerbook for Catholics | Jstamp Store |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 119 MB | 5 MB |
| Requires iOS | 27.0 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mateusz Zajac](https://appshunter.io/developer/1603708297) | [BOXTREE CO., LTD.](https://appshunter.io/developer/1253245928) |

## What reviewers say

### Prayerbook for Catholics

[App page](https://appshunter.io/ios/app/prayerbook-for-catholics/id1603708175)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Jstamp Store

[App page](https://appshunter.io/ios/app/jstamp-store/id6466597337)

**In-app purchases:** none


## Frequently asked questions

### Is Prayerbook for Catholics free?

Prayerbook for Catholics is free to download, with no in-app purchases.

### Is Jstamp Store free?

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

### Do Prayerbook for Catholics or Jstamp Store have ads?

Neither Prayerbook for Catholics nor Jstamp Store shows ads.

### Which is updated more often, Prayerbook for Catholics or Jstamp Store?

Prayerbook for Catholics ships an update every 2 months, and Jstamp Store every 6 weeks. Most recently, Prayerbook for Catholics was updated on November 7, 2026 and Jstamp Store on October 27, 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.*