# Immerse Research vs HolyBooks.App

The clearest difference is in-app purchases: HolyBooks.App at none against Immerse Research's 2. HolyBooks.App also leads on iOS requirement (15.6 vs 17.0). Immerse Research's advantage is update cadence (every 3 days vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. Immerse Research sells 2 in-app purchases, starting at $0.99 per month. HolyBooks.App asks for nothing beyond the download.

Immerse Research ships an update every 3 days, HolyBooks.App weekly. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Immerse Research | HolyBooks.App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/immerse-research/id6774657926/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 230 MB | 92 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shahrooz Shadbakht](https://appshunter.io/developer/6774657928) | [xeFex AG](https://appshunter.io/developer/1678062574) |

## What reviewers say

### Immerse Research

[App page](https://appshunter.io/ios/app/immerse-research/id6774657926)

Create thematic compilations from a vast offline library of sacred texts. Annotate passages, build cross-references, and export your work. Share your collections with a community of readers or discover theirs.

**Highlights:** Offline library of 400+ sacred texts, Build thematic compilations with tags, Annotate passages and create cross-references, Export compilations to various formats, Share and discover community-created collections, Full-text search across all texts, Listen to passages read aloud

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | per month |
| Immerse Pro Lifetime | $30.00 | one-time |


### HolyBooks.App

[App page](https://appshunter.io/ios/app/holybooksapp/id6808943765)

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

**In-app purchases:** none


## Frequently asked questions

### Is Immerse Research free?

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

### Is HolyBooks.App free?

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

### Do Immerse Research or HolyBooks.App have ads?

Neither Immerse Research nor HolyBooks.App shows ads.

### Which is updated more often, Immerse Research or HolyBooks.App?

Immerse Research ships an update every 3 days, and HolyBooks.App weekly. Most recently, Immerse Research was updated on November 10, 2026 and HolyBooks.App on October 31, 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.*