# iPrayerBook vs Unum

The clearest difference is in-app purchases: iPrayerBook at none against Unum's 2. iPrayerBook also leads on iOS requirement (9.0 vs 16). Unum's advantage is update cadence (every 3 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Unum sells 2 in-app purchases, starting at $1.99 per month. iPrayerBook asks for nothing beyond the download.

iPrayerBook ships an update every 3 months, Unum every 3 days. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | iPrayerBook | Unum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/unum/id6770456138/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 24 MB | 33 MB |
| Requires iOS | **9.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LDTS Ltd. Liability Company](https://appshunter.io/developer/1112505411) | [北京客纳罕科技有限公司](https://appshunter.io/developer/1192129088) |

## What reviewers say

### iPrayerBook

[App page](https://appshunter.io/ios/app/iprayerbook/id1112505412)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unum

[App page](https://appshunter.io/ios/app/unum/id6770456138)

This app provides daily prayer resources, scripture study tools, and spiritual devotion guidance. It offers offline access to the Liturgy of the Hours, Mass texts, Gospels, and multiple Bible translations. Users can personalize their experience with custom reading plans, reminders, and themes.

**Highlights:** Liturgy of the Hours, Mass Texts & Daily Gospels, Multiple Bible Translations, Offline Access, Custom Reading Plans, Prayer Reminders, Light & Dark Themes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is iPrayerBook free?

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

### Is Unum free?

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

### Do iPrayerBook or Unum have ads?

Neither iPrayerBook nor Unum shows ads.

### Which is updated more often, iPrayerBook or Unum?

iPrayerBook ships an update every 3 months, and Unum every 3 days. Most recently, iPrayerBook was updated on October 3, 2026 and Unum on October 9, 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.*