Aiko: On-device AI transcription app for Mac, iOS, and visionOS that converts lecture and meeting audio to text privately. Rev: Human and AI transcription, captions and meeting notes Which one wins depends on your platform mix, budget, and how hands-off you want notes to be.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Aiko when transcribing recorded lectures into searchable text for studying matters most, and Rev when captioning video content 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.
Human and AI transcription, captions and meeting notes
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
Rev is a well-known transcription and captioning service that offers both automated (AI) and human-generated transcripts, giving users a choice between speed and maximum accuracy. It is widely used to transcribe recorded meetings, interviews, podcasts, and videos, and it also provides captions and subtitles for video content. In addition to file-based transcription, Rev offers an AI notetaker that can join and summarize meetings, extending its core transcription expertise into the live meeting-assistant space. Users can edit transcripts, search content, and export in various formats, and the human-transcription option is valued when near-perfect accuracy is required, such as for legal, media, or research use. Because it spans automated and human services, Rev appeals to a broad audience — from individuals needing a quick transcript to organizations that require verified, high-accuracy text. It is often chosen when transcription quality and reliable turnaround matter as much as automation. Platforms: Web / upload audio and video / meeting notetaker. Integrations: Zapier. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Aiko is a free tier with paid upgrades (freemium); Rev is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Aiko | Rev |
|---|---|---|
| Core capability | Fully on-device transcription powered by a local Whisper model | AI and human transcription |
| Standout feature | Support for roughly 100 languages | Captions and subtitles |
| Team usage | Transcription of audio and video files in formats like m4a, wav, mp3, mp4, and mov | AI meeting notetaker |
| Integrations | Export to multiple formats including JSON, CSV, and SRT subtitles | Transcript editing and export |
| Languages & capture | Word-replacement feature to auto-correct common errors | Multi-format output |
| Best-fit workflow | Apple Shortcuts integration and Universal Purchase across Mac, iOS, and visionOS | AI and human transcription |
Aiko
Choose Aiko if you need transcribing recorded lectures into searchable text for studying — strengths include strong privacy because nothing leaves the device.
Rev
Choose Rev if you need high-accuracy transcripts — strengths include choice of ai or human accuracy.
Aiko
Rev
It depends on your workflow. Aiko is strong for transcribing recorded lectures into searchable text for studying, while Rev is strong for high-accuracy transcripts. Both transcribe and summarize meetings.
Aiko is a free tier with paid upgrades and Rev is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Often yes: teams combine tools when one handles capture and another handles analysis.
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