FolioLink

FolioLink is the iPhone companion for e-readers running the open-source Folio firmware (Xteink X4 Pro). Open the app — your reading stats, shelves, highlights and screenshots are already there.

Features

• Reading statistics: daily goal, streaks, reading calendar, weekly charts and a review for any day, week, month, year or custom period
• Library: book statuses and shelves that sync to the reader
• Highlights and personal vocabulary collected on the reader, with notes and export
• Sleep screen studio: dashboards and quotes for the reader's sleep screen
• Upload books and fonts, change reader settings, save reader screenshots to Photos
• Signed firmware updates, phone pairing with a PIN, background sync over Bluetooth
• Offline queue: changes made away from the reader are sent when it connects
• Demo mode — try the app without a reader

Free, no ads, no accounts, no data collection. Works over your local Wi‑Fi and Bluetooth only. Requires iOS 17+.

FolioLink is an independent project and is not affiliated with Xteink.