Aiko: On-device AI transcription app for Mac, iOS, and visionOS that converts lecture and meeting audio to text privately. AudioPen: AudioPen records spoken voice notes, transcribes them, and rewrites the rambling speech into clear, structured text in a style you choose. The right pick comes down to team size, budget, and the workflows you want to automate.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Aiko when transcribing recorded lectures into searchable text for studying matters most, and AudioPen when drafting emails, newsletters, or updates by speaking instead of typing matters most. Try them side by side on real calls before deciding — needs vary by team.
On-device AI transcription app for Mac, iOS, and visionOS that converts lecture and meeting audio to text privately.
AudioPen records spoken voice notes, transcribes them, and rewrites the rambling speech into clear, structured text in a style you choose.
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
AudioPen is a voice-to-text tool that captures spoken thoughts and turns them into polished written notes. You record your voice (or upload an audio file), and AudioPen transcribes the speech, then rewrites it into clear, structured text by fixing grammar, cutting filler words, and organizing rambling input into coherent prose. Rather than producing a verbatim transcript, it reshapes what you said into finished writing in a style you select or train over time, with preset and custom styles available. It supports multiple languages and can transcribe speech in one language while writing the output in another. A SuperSummaries feature combines several notes into a single cohesive summary, and existing notes can be reformatted for different purposes such as emails or to-do lists. Built by independent developer Louis Pereira, it runs across iOS, iPad, Apple Watch, Android, Mac, and a Chrome extension, with Zapier and webhook integrations for sending notes elsewhere. It is aimed at people who think out loud and want to convert informal speech into professional written content.
Best suited for
Aiko is a free tier with paid upgrades (freemium); AudioPen is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Aiko | AudioPen |
|---|---|---|
| Core capability | Fully on-device transcription powered by a local Whisper model | Records voice notes and transcribes speech to text |
| Standout feature | Support for roughly 100 languages | Rewrites rambling speech into clear, structured prose with grammar fixes and filler removal |
| Team usage | Transcription of audio and video files in formats like m4a, wav, mp3, mp4, and mov | Audio file upload for transcribing and rewriting existing recordings |
| Integrations | Export to multiple formats including JSON, CSV, and SRT subtitles | Preset and custom writing styles that adapt to your voice over time |
| Languages & capture | Word-replacement feature to auto-correct common errors | Multi-language support, including speaking in one language and writing output in another |
| Best-fit workflow | Apple Shortcuts integration and Universal Purchase across Mac, iOS, and visionOS | SuperSummaries to combine multiple notes, plus Zapier and webhook integrations |
Aiko
Choose Aiko if you need transcribing recorded lectures into searchable text for studying — strengths include strong privacy because nothing leaves the device.
AudioPen
Choose AudioPen if you need capturing and refining personal ideas, journal entries, or brainstorms by voice — strengths include fast, low-friction way to turn spoken thoughts into clean, usable writing.
Aiko
AudioPen
It depends on your workflow. Aiko is strong for transcribing recorded lectures into searchable text for studying, while AudioPen is strong for capturing and refining personal ideas, journal entries, or brainstorms by voice. Both transcribe and summarize meetings.
Aiko is a free tier with paid upgrades and AudioPen is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
You can — some teams pair them when each covers a different part of the meeting workflow.
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