51+ iOS apps curated and reviewed
Looking for free knowtap apps? 20 of our 51+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (10K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.6★ (4.6K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.4★ (26) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (1.6K) | No | Yes | Aug 2026 |
| 5 |  | Free | 5.0★ (6) | No | Yes | Aug 2026 |
| 6 |  | Free | 4.7★ (448K) | No | No | Aug 2026 |
| 7 |  | Free | — | No | Yes | May 2026 |
| 8 |  | Free | 2.6★ (170) | No | No | May 2026 |
This study app uses AI to transform notes and lecture videos into flashcards and practice tests. It offers various study modes, including spaced repetition, and provides free AP exam study guides. Millions of student-created resources are available.
This AI-powered study app helps students complete homework, understand concepts, and prepare for exams. Upload notes, videos, or lectures to generate flashcards, practice tests, and summaries. Get step-by-step homework solutions and personalized study plans.
This AI-powered study tool transforms class materials into organized notes, flashcards, and quizzes. Get instant homework help and create custom study sets for efficient learning. Sync your progress across devices for on-the-go access.
Create and study flashcards to master new materials efficiently. Utilize an enhanced spaced repetition algorithm to optimize study sessions for exams, languages, or complex subjects. Millions trust this method to achieve their learning goals.
Transform lectures and imported content into organized notes, flashcards, and summaries. Features include AI-powered transcription, question generation with citations, and spaced repetition for effective learning. Supports various import formats and cross-device synchronization.
This platform allows users to ask questions on any topic and receive insightful answers from a global community. Discover personalized content, follow subjects of interest, and share your own expertise to contribute to a vast repository of knowledge.
This app helps you organize your research for long-term use. It functions like a document but offers the power of a graph database for efficient information management.
This app uses AI to transform your documents into flashcards and quizzes for efficient studying. It provides personalized feedback, tracks your progress, and employs spaced repetition for optimal memory retention. Study your own material anytime, anywhere, and prepare effectively for exams.
This app uses AI to transform audio, PDF, and video files into summaries, quizzes, and transcripts. It helps students, professionals, and content creators save time by automating note-taking and knowledge testing from recordings.
Create custom flashcards and quizzes with AI assistance. Automatically generate questions from your flashcards in multiple-choice, fill-in-the-blank, or true/false formats. Enhance your learning experience with premium features like image integration and AI-powered text recognition from images.
Create and study digital flashcards using an enhanced spaced repetition algorithm to maximize learning. Access a vast library of pre-made decks or collaborate online. Ideal for students, teachers, and language learners.
This platform allows users to share their unique knowledge and earn money, or to gain insights from experts. Connect with specialists via in-app voice calls to access specialized information not found through general search engines.
Transform your notes, files, and voice recordings into a private, searchable AI knowledge base. Chat with your documents and find information using semantic search, all offline and without tracking.
This app acts as a knowledge network for healthcare professionals, offering an AI assistant for troubleshooting and policy lookups. It also helps users track development goals, connect with mentors and peers, and share knowledge within their organization. Users can recognize colleagues and earn points for their contributions.
This platform delivers concise, step-by-step guidance for operational environments, replacing traditional manuals and videos. It empowers teams to execute tasks correctly and consistently across devices and roles, supporting a distributed workforce.
This app helps you retain information by periodically sending you notifications of facts you've saved. It's designed to combat forgetting and improve general knowledge through spaced repetition.