201+ iOS apps curated and reviewed
Out of 201+ knowledge base apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (2.6K) | No | No | Aug 2026 |
| 2 |  | Free | — | No | No | May 2026 |
| 3 |  | Free | 5.0★ (2) | No | No | May 2026 |
| 4 |  | Free | — | No | No | May 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | $8.99 | 4.7★ (22) | No | No | Jul 2026 |
| 7 |  | Free | 5.0★ (1) | No | Yes | May 2026 |
| 8 |  | Free | — | No | No | May 2026 |
Organize your thoughts and ideas with a powerful knowledge base that utilizes local Markdown files. This app acts as your personal second brain, accessible on your mobile device for seamless note-taking and idea connection.
Organize your thoughts and information with a personal knowledge base. Save web pages, highlight text, and sync across devices. Create questions and link answers to build a comprehensive understanding of any topic.
Organize and search text documents and web pages with links within a mind map structure. Automatically create mind maps from text, import Wikipedia articles, and export your knowledge base as HTML. Also functions as a flowcharting tool.
This app acts as an AI-powered knowledge hub, allowing users to capture, manage, learn from, and create knowledge across various formats. It uses AI agents to organize content, answer questions, and facilitate voice-driven writing and content creation.
Capture and organize all your ideas, facts, and details effortlessly. This app acts as a personal database, allowing you to store various types of information and retrieve it quickly with a powerful search system. Customize your data input with templates for efficient management.
This audio app delivers general knowledge through engaging 10-minute stories and quizzes. Learn about history, science, art, and more on the go, anytime, anywhere. It's designed to make learning easy and entertaining.
Embark on an exciting adventure to master multiplication through over 20 engaging games. Designed by experts, this app helps children develop a deep understanding of times tables and practice them in various contexts.
This AI-powered tool helps you manage and organize your personal knowledge by collecting digital content from various online sources. It uses AI to extract insights, answer your questions, and provide AI-driven recaps to stimulate learning and understanding.
This app acts as a team's collective knowledge base, enabling real-time collaborative document creation and organization. It offers various visual views to explore information and supports file uploads for comprehensive team documentation.
Access and manage your team's documentation on the go. Capture ideas, collaborate on documents, and find information quickly with powerful search. Keep your team connected and projects moving forward from anywhere.
This app provides a private, offline space to store and organize information, including images, directly on your device. View your stored data like a social media feed, making it ideal for personal notes, revision, or professional record-keeping.
Access the world's largest free knowledge base with over 60 million articles in nearly 300 languages. Explore trending topics, save articles for offline reading, and customize your reading experience with various themes and text sizes. Contribute to the community by editing articles and participating in discussions.
Track live cryptocurrency prices and manage your digital asset holdings. This app provides real-time market data for over 100 coins, helping you stay informed about your investments.
This AI-powered medical assistant provides fast, evidence-based answers to clinical questions for healthcare professionals. It offers instant access to research, drug information, calculators, and CME credits, all within a HIPAA-compliant platform.
