# Underline: Book Quotes & Notes — Scan, Save & Search Highlights

> Scan, Save & Search Highlights (iPhone/iPad app by Zeynal Abidin UNLU.)

- Source: https://appshunter.io/ios/app/underline-book-quotes-and-notes/id6821564891 (this page in markdown: same URL + `.md`)
- Developer: [Zeynal Abidin UNLU](https://appshunter.io/developer/6811378018)
- Category: Books, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.5 · 48 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, European Portuguese, Russian, European Spanish, Turkish
- Released: 2026-10-14
- Data updated: 2026-10-16

## What is Underline?

You underline a line in a book. You copy it into a notebook. Then the notebook stays at home, exactly when you want to find that passage again.

Underline is your personal quote notebook for the printed books you read. Save the lines you underline, keep them organized by book and page, and find any of them in seconds, wherever you are.

SAVE A PASSAGE IN SECONDS
• Point your camera at the page. Text is recognized right on your device
• Tap to select just the sentences you want, then save
• Prefer typing? Add any quote manually
• Add the page number, a personal note and tags

BUILD YOUR BOOKSHELF
• Add books by scanning the ISBN barcode or searching by title or author
• Every quote is kept with its book, author and page
• Mark favorites to keep your most loved lines one tap away

FIND ANY LINE, ANYWHERE
• Full-text search across every quote and note
• Filter by book, tag or favorites
• Your reading notes travel with you, no paper notebook required

SHARE THE WORDS YOU LOVE
• Turn a quote into a clean, beautiful card
• Share it to Instagram Stories, messages or anywhere else

YOUR DATA, YOUR FILES
• Back up your whole library to a single .underline file and restore it anytime
• Export to CSV or Markdown, ready for Notion, Obsidian or a spreadsheet

PRIVATE BY DESIGN
• No account, no sign-up
• Your quotes are stored on your device, not on our servers
• Works offline. The internet is only used when you look up a book

Text recognition works with Latin-alphabet languages (English, Spanish, French, German, Italian, Portuguese, Turkish and more), plus Russian, Arabic and Japanese. Handwriting is not supported.

UNDERLINE PRO (OPTIONAL)
• No ads
• Every quote card style, PDF export of a book's quotes and full reading insights
• Monthly or yearly subscription (the yearly plan starts with a free trial), or a one-time lifetime purchase
• Your books and quotes stay free and unlimited without Pro

Underline is free to download. Start your quote journal with the book on your nightstand.

Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel them in your App Store account settings.

Terms of Use: https://zaustudios.web.app/apps/underline/terms
Privacy Policy: https://zaustudios.web.app/apps/underline/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Underline Pro Yearly | $4.99 | per year |
| Underline Pro Monthly | $0.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Underline Pro Lifetime | $9.99 | one-time |


## Is Underline safe?

Not enough ratings yet to assess Underline.

## Is Underline legit?

Underline: Book Quotes & Notes has limited verification signals. The AppsHunter Legitimacy Score for Underline is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-10-14

No release notes.

## More apps by Zeynal Abidin UNLU

- [ApplyAce: Resume Builder](https://appshunter.io/ios/app/applyace-resume-builder/id6811378016)

All apps by Zeynal Abidin UNLU: https://appshunter.io/developer/6811378018

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-16.*