Castmagic: AI content platform that transcribes podcasts, videos, and recorded meetings with speaker diarization and turns them into show notes, summaries, and other assets. Némos: An Apple-focused "second brain" app that records and auto-transcribes voice memos and meeting notes entirely on-device using Apple Intelligence. We compare them on cost, capture approach, and day-to-day fit so you can choose faster.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Castmagic when transcribing podcast episodes and generating show notes and summaries 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.
AI content platform that transcribes podcasts, videos, and recorded meetings with speaker diarization and turns them into show notes, summaries, and other assets.
An Apple-focused "second brain" app that records and auto-transcribes voice memos and meeting notes entirely on-device using Apple Intelligence.
Castmagic is an AI-powered content platform that transforms recorded audio and video into transcripts and a range of derived content. After a file is uploaded or imported, Castmagic transcribes it with speaker diarization and then automatically generates summaries, show notes, timestamps, titles, social media posts, newsletters, and other assets from the same recording. The platform integrates with sources including YouTube, Apple Podcasts, Google Drive, and Zoom, so recorded meetings and interviews can flow directly into a workspace for processing alongside podcast episodes. Castmagic includes semantic search across a media library, brand-voice customization, reusable templates, and commenting and approval workflows aimed at teams and agencies that manage content for multiple brands. While its marketing centers on podcasters and creators, the transcription, speaker labeling, and summary features make it applicable to meeting and interview recordings as well. It is intended for content teams, marketing agencies, podcasters, coaches, and sales organizations that want to convert recorded conversations into transcripts and repurposed written content rather than only a raw transcript. 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
Castmagic 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 | Castmagic | Némos |
|---|---|---|
| Core capability | Transcription of audio and video with speaker diarization | On-device voice memo recording and automatic speech-to-text transcription |
| Standout feature | Automatic generation of summaries, show notes, titles, and timestamps | Local AI processing via Apple Intelligence Foundation Models (data stays on device) |
| Team usage | Repurposing of recordings into social posts, newsletters, and blog content | Auto-formatting of recordings into summaries, meeting notes, bullets, email, or journal entries |
| Integrations | Direct import from sources including YouTube, Google Drive, and Zoom | Full-text search across transcribed audio and other captured content |
| Languages & capture | Semantic search across a media library of past recordings | Apple Watch voice recording and Siri voice command support |
| Best-fit workflow | Multi-brand workspaces with templates and approval workflows for teams | Two-way sync with Apple Reminders, Calendar, Notes, Photos, Files, Maps, and iCloud |
Castmagic
Choose Castmagic if you need transcribing podcast episodes and generating show notes and summaries — strengths include goes beyond transcription to produce ready-to-use written content from recordings.
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.
Castmagic
Némos
It depends on your workflow. Castmagic is strong for transcribing podcast episodes and generating show notes and summaries, while Némos is strong for recording and transcribing in-person meetings or lectures on an iphone or apple watch. Both transcribe and summarize meetings.
Castmagic 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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