# Episteme vs LibreraX

The clearest difference is ads: Episteme at none against LibreraX's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Episteme sells 5 one-off in-app purchases and LibreraX sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Episteme ships an update every 4 days, LibreraX every 5 days. Both last shipped on November 10, 2026.

## The numbers

| Metric | Episteme | LibreraX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/librerax-epub-reader-pdf/id6815773197/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Size | 102 MB | 112 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Aryan Raj](https://appshunter.io/developer/6803775135) | [Ivan Ivanenko](https://appshunter.io/developer/6777951014) |

## What reviewers say

### Episteme

[App page](https://appshunter.io/ios/app/episteme-pdf-and-ebook-reader/id6803775133)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wallet Top-Up $1 | $0.99 | one-time |
| Wallet Top-Up $5 | $4.99 | one-time |
| Episteme Pro | $5.99 | one-time |
| Wallet Top-Up $10 | $9.99 | one-time |
| Wallet Top-Up $20 | $19.99 | one-time |


### LibreraX

[App page](https://appshunter.io/ios/app/librerax-epub-reader-pdf/id6815773197)

This application allows you to read a wide variety of book formats, including EPUB and PDF. Customize your reading experience with adjustable fonts, backgrounds, and reading modes. Organize your library, add notes, and even listen to books with text-to-speech functionality.

**Highlights:** Supports EPUB, PDF, MOBI, and more, Customizable fonts, backgrounds, and themes, Add bookmarks and notes, Text-to-Speech (TTS) functionality, Organize library with tags and favorites, Search free books in OPDS Catalogs

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LibreraX Pro | $0.99 | per month |


## Frequently asked questions

### Is Episteme free?

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

### Is LibreraX free?

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

### Do Episteme or LibreraX have ads?

LibreraX shows ads; Episteme does not.

### Which is updated more often, Episteme or LibreraX?

Episteme ships an update every 4 days, and LibreraX every 5 days. Most recently, Episteme was updated on November 10, 2026 and LibreraX on November 10, 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.*