Cognito: AI Reading Companion
Chat with your books.
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Transform reading into understanding. Ask questions, get instant answers from your books, and track your progress—all powered by AI on your device.
CONVERSE WITH YOUR BOOKS
Cognito is an ebook reader that helps you explore the books you read.
Ask questions about the text, generate summaries, and review key ideas directly from your book.
FEATURES
AI Chat & Quick Actions
Ask questions about your book and get context-aware answers grounded in the text.
Quick actions include:
• About This Book
• Summarize
• Key Points
• Quiz Me
Smart Highlights & Notes
Highlight passages, attach notes, and organize your highlights in one place.
Book Summary with Caching
Generate summaries and reopen them instantly.
Universal Search
Find passages across EPUB and PDF files.
Table of Contents Navigation
Jump directly to chapters and sections.
Reading Insights Dashboard
Track reading time, speed, streaks, totals, and top authors.
Reader Controls
Adjust font size, spacing, margins, and themes.
EPUB Engine
Native EPUB rendering powered by Readium.
Localization
Available in 7 languages.
AI PROCESSING OPTIONS
Cognito supports two AI processing modes.
Apple Intelligence (On-Device)
When available, AI processing runs entirely on the device.
Optional Cloud AI
Users may optionally connect external language models using their own API key.
Only the text selected by the user and their prompt are sent for processing.
Books remain stored locally on the device.
API keys are securely stored in the iOS Keychain.
FREEMIUM MODEL
Start free with up to 3 books in your library.
Unlock unlimited books with a one-time Premium purchase.
IDEAL FOR
• Students and researchers
• Professionals reading reports and technical documents
• Book clubs and deep readers
• Lifelong learners
Download Cognito and explore your books in a new way.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
**What's New in Version 1.3.1**
• Enables Premium Unlimited in-app purchase
• Minor improvements and fixes to ensure a smooth purchase experience
The developer, Sergio Caiado, 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
- Sergio Caiado
- Size
- 11.1 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 and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
Dutch and 4 more
- Dutch, French, German, Portuguese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Sérgio Caiado from Tiny Little Lab. All rights reserved.