FolioLink
Companion for Folio e-readers
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
FolioLink is the iPhone companion for e-readers running Folio, the open-source firmware for the Xteink X4 Pro. Open the app and everything your reader has collected is already here.
READING STATISTICS
• Daily goal, streaks and a reading calendar
• Weekly charts and reading by time of day
• A review card for today, this week, month, year or any period you choose
LIBRARY
• All books on your reader with their progress
• Statuses — want to read, reading, finished — and shelves that sync back to the reader
HIGHLIGHTS AND VOCABULARY
• Highlights you make on the reader, with chapter, position and your notes
• Every word you looked up in the reader's dictionary, with its context
• Export highlights to Markdown
SLEEP SCREENS
• Design dashboard and quote sleep screens and send them to the reader
YOUR READER, FROM YOUR PHONE
• Send books, web articles and fonts over Wi‑Fi
• Change reader settings and save reader screenshots to Photos
• Install signed firmware updates, confirmed on the reader itself
• Changes made away from the reader wait in a queue and are sent when it connects
• Optional background sync over Bluetooth
PRIVATE BY DESIGN
No accounts, no ads, no analytics. FolioLink talks only to your own reader on your local network or over Bluetooth, and pairing with a PIN makes sure nobody else on the network can change it.
No reader yet? Tap “Try without a reader” to explore the app with sample books and data.
FolioLink requires an e-reader running the Folio firmware (github.com/guloff/folio-firmware). FolioLink is an independent project and is not affiliated with Xteink.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Dictionaries: a new More → Dictionaries section. Install ready-made dictionaries on the reader from the catalog (English–Russian, Russian–English, English and Russian definitions, Tajik) or your own StarDict files.
• Choose where words are looked up: in all dictionaries, in one, or nowhere. Tap a word in a book to see its translation.
• FB2 books: send .fb2 and .fb2.zip files to the reader from the Library or the Share sheet — the reader converts them to EPUB when first opened (Folio 1.1 firmware).
• Large files are sent to the reader using far less phone memory.
• Requires Folio firmware 1.1.
The developer, Rustam Gulov, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Rustam Gulov
- Size
- 9.2 MB
- Category
- Books
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Russian
- Age Rating
4+
- 4+
- Copyright
- © 2026 Rustam Gulov