Silt: Writing
Writing, close to your reading
Free
Write with everything you've read within reach. Silt pulls your highlights and notes onto the page as you draft — and keeps every word private, on your devices.
Silt is a calm place to think on the page.
It's built for two kinds of writing — essays and journaling — and for the
reading that feeds them. Choose your intent and the room changes to suit it:
an open canvas for an essay, a quiet daily page for a journal, a focused
reader for a book.
Most writing apps forget what you've read. Silt doesn't. As you write, it
brings the relevant lines from your reading alongside the paragraph you're
working on — so the right quote or idea is there when you reach for it.
WRITE WITH INTENTION
• Start from a prompt — "What are you here to think about?" — not a blank page.
• Separate modes for drafting and revising: get the words down first, shape them later.
• Every paragraph keeps its own version history. Try a line three ways and never lose the one you liked.
• Set a gentle deadline and a daily writing reminder.
A LIVING READING CORPUS
• Bring in highlights from Kindle and Obsidian, or highlight as you read inside Silt.
• While you write, Silt surfaces the passages that match what you're saying, ranked by relevance.
• Drop any highlight straight into your draft as a quote.
READ INSIDE THE APP
• Open your own PDFs and EPUBs in a clean, distraction-free reader.
• Your books stay on your device.
• Highlights you make flow back into your corpus, ready to resurface later.
ONE LIBRARY, EVERYTHING IN ITS PLACE
• Notes, journal entries, highlights, and books — organized and searchable.
• Light and dark, with accent colors you can tune to your taste.
PRIVATE BY DESIGN
• Your writing is end-to-end encrypted (AES-GCM-256). Only you hold the key.
• Local-first: the app works fully offline, with no account required.
• Optional sync keeps your work in step across iPhone, iPad, and Mac.
Silt runs natively on iPhone, iPad, and Mac — one app, all your devices.
Writing settles like sediment, layer on layer, until something solid forms.
Silt is where it settles.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Santiago Sonzini, 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
- Santiago Sonzini
- Size
- 4.7 MB
- Category
- Books
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Santiago Sonzini
