Phloem: Paper Reader
Read papers. Stay focused.
Free · Designed for iPad. Not verified for macOS.
iPad
Phloem carries sugar from leaf to fruit; this reader carries knowledge from paper to brain. Highlight, write with Apple Pencil, think beside the page. Free and private.
Phloem is a calm, local-first reading desk for research papers on iPad.
Import PDF and Word documents, read without distractions, and keep your thinking beside the source. Search a paper, highlight passages, write notes, track your place, use the movable reading guide, and switch between focused reading layouts. Clean note lettering is the default, and the Handwritten switch brings back a more personal notebook feel whenever you want it.
For handwritten PDF notes, turn on Write and use Apple Pencil directly on the page. Add ideas in the margins, circle figures, or sketch on scanned and blank pages without OCR. Choose from eight ink colors and three pen widths. Hold Pencil still for about 0.6 seconds after a long open stroke to straighten it, adjust the endpoint before lifting, or keep writing naturally with pressure-sensitive strokes. Your handwriting stays anchored to its PDF page as you zoom and change layouts; fingers remain available for navigation.
For text highlighting, Mark opens its bottom toolbar and keeps colors available as you highlight and change colors. Pencil strokes include complete endpoint words. The toolbar offers Define for the selected passage or the latest selected highlight still on the current page.
On PDFs, Write's Eraser and Mark's Erase both remove touched handwriting strokes and text highlights. One Undo restores the whole sweep; the Zen dock also includes Undo without leaving focused reading. The text Reader's highlight eraser is unchanged. Handwriting is saved with the library and in JSON backups. Export original PDF and the PDF in a NotebookLM package remain the unannotated original file; they do not embed Phloem handwriting or highlights.
For review work, Phloem keeps imported comments, linked passages, replies, and revision notes together. You stay in control of every link and every edit.
Private by design
- No Phloem account
- No advertising or Phloem analytics
- Local reading works offline after a document is imported
- Portable JSON backups include editable handwriting, typed notes, and highlights, but exclude original documents and private credentials
- Online features run only when you choose them
Online definitions, PDF URL imports, external links, and cloud file providers require an internet connection. Keep original document files separately.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Handwriting in the Workspace keeps up with your Pencil, even on long, full sheets.
- No more pause after writing with a large book or library open: sync no longer re-reads the copy it just saved.
- Sticky notes on PDF pages: tap a spot, type, and the note stays there at every zoom.
- Export an annotated PDF: your highlights, handwriting and notes are written into the original file.
- DeepSeek is no longer offered as an AI provider, for privacy. Any DeepSeek key saved on this iPad is deleted. AI stays optional and off unless you turn it on.
- In portrait, the Workspace can sit below the paper.
- Smaller fixes: white Workspace ink in dark mode, zoomed page turns land where you were reading, a second tap on an open tool closes it, guide thickness in percent, Pencil and finger taps no longer open PDF links by accident, and clearer contrast and labels for accessibility.
The developer, Houfu Chen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Search History
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Houfu Chen
- Size
- 18.2 MB
- Category
- Productivity
- Compatibility
Requires iPadOS 15.0 or later.
- iPad
Requires iPadOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPad
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Houfu Chen
