# ePub Reader vs Underline

The clearest difference is ads: ePub Reader at none against Underline's shown. ePub Reader also leads on iOS requirement (13.0 vs 15.5). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. ePub Reader sells 5 in-app purchases, starting at $4.99 per 7 days and Underline sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ePub Reader ships an update every 2 weeks, Underline every 10 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | ePub Reader | Underline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/epub-reader-ebook-viewer/id6749545560/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 77 MB | 49 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TEXAS ADVANCE LLC](https://appshunter.io/developer/1850389482) | [Zeynal Abidin UNLU](https://appshunter.io/developer/6811378018) |

## What reviewers say

### ePub Reader

[App page](https://appshunter.io/ios/app/epub-reader-ebook-viewer/id6749545560)

Read eBooks and documents in various formats like EPUB, PDF, and DOC. Import files easily, customize your reading experience with themes and fonts, and manage bookmarks and notes. Unlock more features with a PRO subscription.

**Highlights:** Supports EPUB, PDF, TXT, DOC, DOCX, ODT, Import via Browser, AirDrop, iCloud, Finder, Chapter browsing and bookmarking, Font customization and themes, Brightness control, Note-taking functionality

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Weekly-Trial | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $39.99 | per year |
| Lifetime | $59.99 | one-time |


### Underline

[App page](https://appshunter.io/ios/app/underline-book-quotes-and-notes/id6821564891)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Underline Pro Monthly | $4.99 | per month |
| Underline Pro Yearly | $19.99 | per year |
| Underline Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is ePub Reader free?

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

### Is Underline free?

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

### Do ePub Reader or Underline have ads?

Underline shows ads; ePub Reader does not.

### Which is updated more often, ePub Reader or Underline?

ePub Reader ships an update every 2 weeks, and Underline every 10 days. Most recently, ePub Reader was updated on November 8, 2026 and Underline 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.*