Aiko: On-device AI transcription app for Mac, iOS, and visionOS that converts lecture and meeting audio to text privately. Némos: An Apple-focused "second brain" app that records and auto-transcribes voice memos and meeting notes entirely on-device using Apple Intelligence. This comparison weighs them on pricing, features, and everyday workflow fit.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Aiko when transcribing recorded lectures into searchable text for studying matters most, and Némos when capturing spoken thoughts as voice memos and converting them to searchable, formatted notes 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.
An Apple-focused "second brain" app that records and auto-transcribes voice memos and meeting notes entirely on-device using Apple Intelligence.
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
Némos is a personal knowledge management ("second brain") app for the Apple ecosystem that captures and automatically organizes many content types, including voice memos that it records and transcribes on-device. Rather than joining video calls as a bot, it captures audio directly from the iPhone or Apple Watch and converts speech to text locally using Apple Intelligence Foundation Models, so data stays on the device. Transcribed audio becomes fully searchable, and recordings can be turned into formats such as bullet points, summaries, meeting notes, emails, or journal entries. Beyond voice, Némos handles screenshots with OCR, links, PDFs, notes, photos, and more, naming and filing them automatically without manual tagging. It runs on iPhone and iPad (with Apple Watch recording, Siri commands, and Chrome, Safari, and Firefox extensions), and offers two-way sync with Apple Reminders, Calendar, Notes, Photos, Files, Maps, and iCloud. It is aimed at students, researchers, writers, and professionals who want private, low-effort capture of voice and other notes. As of mid-2026 it is in private beta.
Best suited for
Aiko is a free tier with paid upgrades (freemium); Némos is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Aiko | Némos |
|---|---|---|
| Core capability | Fully on-device transcription powered by a local Whisper model | On-device voice memo recording and automatic speech-to-text transcription |
| Standout feature | Support for roughly 100 languages | Local AI processing via Apple Intelligence Foundation Models (data stays on device) |
| Team usage | Transcription of audio and video files in formats like m4a, wav, mp3, mp4, and mov | Auto-formatting of recordings into summaries, meeting notes, bullets, email, or journal entries |
| Integrations | Export to multiple formats including JSON, CSV, and SRT subtitles | Full-text search across transcribed audio and other captured content |
| Languages & capture | Word-replacement feature to auto-correct common errors | Apple Watch voice recording and Siri voice command support |
| Best-fit workflow | Apple Shortcuts integration and Universal Purchase across Mac, iOS, and visionOS | Two-way sync with Apple Reminders, Calendar, Notes, Photos, Files, Maps, and iCloud |
Aiko
Choose Aiko if you need transcribing recorded lectures into searchable text for studying — strengths include strong privacy because nothing leaves the device.
Némos
Choose Némos if you need recording and transcribing in-person meetings or lectures on an iphone or apple watch — strengths include privacy-focused: voice transcription and ai run fully on-device, with no cloud upload.
Aiko
Némos
It depends on your workflow. Aiko is strong for transcribing recorded lectures into searchable text for studying, while Némos is strong for recording and transcribing in-person meetings or lectures on an iphone or apple watch. Both transcribe and summarize meetings.
Aiko is a free tier with paid upgrades and Némos 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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