Vesper: EPUB, PDF, & AI Reader
Vesper: EPUB, PDF, & AI Reader is made and published by S Tan. AppBrain is an independent app data site and isn't affiliated with S Tan. The app name, icon, screenshots and description belong to S Tan and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- June 1, 2026
Rankings
App Store top chartsApp Store Rankings for Vesper: EPUB, PDF, & AI Reader
Competitors
Similar apps and more from S TanAlternatives to Vesper: EPUB, PDF, & AI Reader
More from S Tan
Releases
Updates seen on the App Store- Version
- 1.0
- Launched
- June 2026
No changelog data
User feedback
Ratings and reviews on the App StoreComments on Vesper: EPUB, PDF, & AI Reader for iOS
We don't have enough comments to show example comments. Please check back later.
Technology
Found in the app by AppBrain- Price
- Free
- App size
- 9.46 MB
- Content rating
- Everyone
Technologies used by Vesper: EPUB, PDF, & AI Reader
About the app and developer
About Vesper: EPUB, PDF, & AI Reader
Vesper: EPUB, PDF, & AI Reader is a books app developed by S Tan.
User Ratings
The app has no ratings yet.
App Information
Vesper: EPUB, PDF, & AI Reader is freely available from the App Store. The app size is 9.46 MB. The latest version available is 1.0. The last update was on June 1, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since June 2026.
Developer information for S Tan
Address:
Store listing
By S Tan, from the App StoreDescription by S Tan Written by the developer, not by AppBrain. Click to read.
Load your library, open a book, and the reader gets out of the way. Tap once to hide every chrome element so it's just you and the page. Highlights you save show up in a Quote of the Day widget on your Home Screen, so the lines that mattered come back to find you later.
A reading buddy lives inside the book. Tap the chat button on any page and ask about what you're looking at — a phrase, a character, the historical moment, your own half-formed thought. A short answer appears beside the page. Useful for catching a reference, asking a question, working through a passage out loud, or when a scene just wants to be talked about.
The journal half of the app tracks what you're reading, what you've finished, and what's still waiting. Build custom views with filters and sorts — Currently Reading, Finished This Year, By Genre, by anything you care about. Tag books with genres and subgenres, add notes, set reading status. It's a bookshelf you actually use.
Features:
• Read EPUB and PDF files from your library, iCloud Drive, Files, or anywhere on your device
• Ask AI about the page you're on, without leaving the book
• Save highlights and revisit them via the Home Screen widget
• Track reading status, finish dates, genres, and notes per book
• Build custom filtered views of your library
• Multiple typefaces, adjustable size, and full theme control
• Automatic Day/Night theme that follows local sunset
• Private iCloud sync across iPhone and iPad — your data, your account
• Designed for both phone and iPad
Bring your own EPUBs and PDFs. Read at your pace. Keep the record.
Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/