Keep highlights and notes organized across books

SentiaRead lets you highlight sentences and write thoughts directly inside EPUBs, PDFs, web articles, and podcast transcripts without ever leaving the page. Each one is anchored to its exact chapter, paragraph and offset, so it stays put in the text; open the highlights list while reading and one tap takes you back to it. Your notebook gathers them all by book, and everything syncs across iPhone, iPad, Android, e-ink devices, Mac and Windows.

Available on iPhone, iPad, Android, Mac, Windows, E-Ink, and Chrome.

In-place highlighting and note taking that keeps you in the flow

Select any sentence while reading to highlight it with your favorite color theme or add a personal reflection on the spot. Clean book typography and uninterrupted focus ensure your immersion is never broken.

A dedicated book notebook to revisit your best excerpts

Highlights and personal reflections are aggregated into a clean, book-by-book notebook. Organized by chapter with progress indicators, you can revisit the most impactful ideas whenever inspiration strikes.

Real-time cloud sync across all your phones, tablets, and computers

Highlight on your phone during your morning commute, add reflections on your iPad or e-ink tablet in the evening, and organize research on your Mac or PC. Every annotation is instantly synced and preserved.

How it differs from screenshots and generic note apps

Anchored to the sentence, not to a page number

Every highlight records the chapter, paragraph block and offset it came from, so it survives a font change or a re-flow. While you are reading, the highlights list takes you back to any of them in one tap.

Separated from AI dictionary & vocabulary lists

Language learning lookups and book quotes stay in their own clean spaces, working together seamlessly without cluttering your thoughts.

Built specifically for books and long-form reading

No messy screenshot folders or copy-pasting into external note apps. A dedicated, distraction-free reading notebook synced across all devices.

Frequently Asked Questions

Which content types can I highlight and annotate?
You can highlight and take notes in imported EPUB books, PDFs, TXT files, saved web articles, and audio podcast transcripts. All notes across every format land in your unified notebook.
How do I get back to where a highlight came from?
Open the highlights list while the book is open and tap one — the page scrolls straight to that sentence. The anchor records chapter, paragraph block and offset, so it still finds the sentence after you change the font size or switch devices. The notebook is the other view: it gathers highlights across every book, organized by book and chapter.
Can I export or copy my highlights and notes?
Yes. You can copy individual highlights and notes with one tap, or copy an entire chapter’s annotations to paste into Notion, Obsidian, or your favorite note-taking workspace.
Do highlights and notes work offline?
Yes. All highlights and notes are saved locally first using high-speed on-device storage. When you reconnect to the internet, all edits automatically reconcile and sync to the cloud.

Works together with

Capture your reading reflections and build a personal knowledge library.