Aiko: On-device AI transcription app for Mac, iOS, and visionOS that converts lecture and meeting audio to text privately. Knowt: AI study platform that turns recorded or uploaded lectures into notes, flashcards, and practice quizzes for students. Below, they line up on price, capture method, and how each fits a real meeting stack.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Aiko when transcribing recorded lectures into searchable text for studying matters most, and Knowt when generating flashcards and practice tests from course materials before exams matters most. Test each on your own meetings; the right choice tends to become obvious quickly.
On-device AI transcription app for Mac, iOS, and visionOS that converts lecture and meeting audio to text privately.
AI study platform that turns recorded or uploaded lectures into notes, flashcards, and practice quizzes for students.
Aiko is a native transcription app for macOS, iOS, and visionOS, developed by Sindre Sorhus, that converts speech to text from meetings, lectures, and recordings entirely on-device. It uses OpenAI's Whisper model running locally, so audio never leaves the user's device, which makes it appealing for students and professionals with privacy requirements. Aiko transcribes both audio and video files in common formats such as .m4a, .wav, .mp3, .mp4, and .mov, and supports around 100 languages. Transcriptions can be exported in multiple formats, including JSON, CSV, and SRT subtitles, and the app includes a word-replacement feature to automatically correct recurring errors. It also integrates with Apple Shortcuts for automation workflows. Because Aiko prioritizes accuracy over speed, it does not perform live transcription while recording and currently does not include speaker detection, so it is best for transcribing recorded lectures, interviews, and meetings after the fact. The app is offered as a Universal Purchase with a free trial via TestFlight, making it a low-cost, privacy-first option for turning lecture and meeting recordings into searchable text. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Knowt is an AI-powered study platform built primarily for students and teachers that converts lectures and learning materials into organized study resources. Students can record a lecture live in the app or on the website, or upload existing audio, video, PDFs, and slide decks, and the platform's AI assistant (called Kai) generates summarized notes, flashcards, and practice quizzes from the content. Notes can be formatted as outlines or paragraphs, with adjustable detail levels, and the original audio is saved for reference. Beyond capture and transcription-driven summarization, Knowt functions as a broader study workspace, positioning itself as a free alternative to traditional flashcard apps and offering a large library of community-shared study materials. It also includes teacher-facing features for assigning material and tracking student progress. The tool spans web, iOS, and Android, making it usable across classroom, online-course, and self-study settings. Knowt is aimed at learners who want lecture capture to flow directly into reusable, exam-oriented study artifacts rather than just raw transcripts. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Aiko is a free tier with paid upgrades (freemium); Knowt is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Aiko | Knowt |
|---|---|---|
| Core capability | Fully on-device transcription powered by a local Whisper model | Live lecture recording in app and on the web, plus upload of audio, video, PDFs, and slides |
| Standout feature | Support for roughly 100 languages | AI-generated notes with adjustable formatting (outline or paragraph) and detail level |
| Team usage | Transcription of audio and video files in formats like m4a, wav, mp3, mp4, and mov | Automatic flashcard generation from lecture and document content |
| Integrations | Export to multiple formats including JSON, CSV, and SRT subtitles | Practice quiz and test creation from any note, PDF, or video |
| Languages & capture | Word-replacement feature to auto-correct common errors | Kai AI chat for explaining concepts and answering questions |
| Best-fit workflow | Apple Shortcuts integration and Universal Purchase across Mac, iOS, and visionOS | Large community library of shared study sets and teacher tools for assignments |
Aiko
Choose Aiko if you need transcribing recorded lectures into searchable text for studying — strengths include strong privacy because nothing leaves the device.
Knowt
Choose Knowt if you need recording university lectures and turning them into structured study notes — strengths include combines capture, summarization, and active-recall study tools in one student-focused app.
Aiko
Knowt
It depends on your workflow. Aiko is strong for transcribing recorded lectures into searchable text for studying, while Knowt is strong for recording university lectures and turning them into structured study notes. Both transcribe and summarize meetings.
Aiko is a free tier with paid upgrades and Knowt is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Sure. Running both makes sense when their strengths don't overlap and the budget allows.
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