# Liber Pro vs Hours

The clearest difference is rating: Hours at 5.0 against Liber Pro's 4.4. Hours also leads on update cadence (every 5 days vs every 13 months) and review sentiment (100% vs 86%). Liber Pro's advantage is iOS requirement (17.6 vs 26.0). On price, ratings volume, 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.

Hours holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 8 and 6 respectively. Written reviews point the same way: 86% of Liber Pro's written reviews are positive against 100% of Hours's.

Liber Pro ships an update every 13 months, Hours every 5 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Liber Pro | Hours |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (8 ratings)](https://appshunter.io/ios/app/liber-pro/id330876689/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/hours-roman-breviary/id6794589632/reviews)** |
| Number of ratings | **8** | 6 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 132 MB | 225 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [James Fryar](https://appshunter.io/developer/381131671) | [Matthew McCarty](https://appshunter.io/developer/1676579862) |

## What reviewers say

### Liber Pro

[App page](https://appshunter.io/ios/app/liber-pro/id330876689)

This app provides a digital version of the 1961 Liber Usualis, a comprehensive book of Gregorian Chant. It features a dynamic calendar, searchable content, user-defined bookmarks, and annotation tools for easy navigation and study.

**Highlights:** 1961 Liber Usualis eBook, Dynamic liturgical calendar, User-defined bookmarks, Text-based search, Annotation tools, Browser-like navigation

**Features:** macOS Compatibility

**In-app purchases:** none


### Hours

[App page](https://appshunter.io/ios/app/hours-roman-breviary/id6794589632)

This app provides the complete daily Roman Breviary office and Mass texts according to 1960 or 1954 rubrics. It includes Latin texts with optional English translations and native Gregorian notation with chant support.

**Highlights:** Complete daily office (Matins to Compline), 1960 and 1954 rubrics editions, Mass propers and Ordinary in Latin/English, Gregorian notation with cantor guide, Synchronized highlighting with tone audio, Calendar and liturgical season information

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

**In-app purchases:** none


## Frequently asked questions

### Is Liber Pro free?

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

### Is Hours free?

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

### Which has better reviews, Liber Pro or Hours?

Hours is rated higher. Liber Pro averages 4.4 out of 5 from 8 ratings, while Hours averages 5.0 from 6 ratings.

### Do Liber Pro or Hours have ads?

Neither Liber Pro nor Hours shows ads.

### Which is updated more often, Liber Pro or Hours?

Liber Pro ships an update every 13 months, and Hours every 5 days. Most recently, Liber Pro was updated on October 31, 2026 and Hours on November 6, 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.*