Castmagic: AI content platform that transcribes podcasts, videos, and recorded meetings with speaker diarization and turns them into show notes, summaries, and other assets. Thoth: Privacy-first macOS app that records, transcribes, and summarizes meetings entirely on-device with no cloud or data leaving the Mac. Below, they line up on price, capture method, and how each fits a real meeting stack.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Castmagic when transcribing podcast episodes and generating show notes and summaries matters most, and Thoth when users who want offline, private meeting notes on a mac matters most. Run both through a week of actual calls to see which suits your workflow.
AI content platform that transcribes podcasts, videos, and recorded meetings with speaker diarization and turns them into show notes, summaries, and other assets.
Privacy-first macOS app that records, transcribes, and summarizes meetings entirely on-device with no cloud or data leaving the Mac.
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
Thoth is a native macOS application, created by Matthieu Veinhard, that records, transcribes, and summarizes meetings entirely on the user's device. It captures both microphone and system audio so it can record both sides of online meetings on platforms such as Zoom, Teams, and Google Meet, and it provides live transcription with on-device speech-to-text. An on-device engine detects and color-codes individual speakers in the transcript, and the app supports a large number of languages via Whisper-based transcription. After a meeting, Thoth extracts notes, action items, and key decisions, and lets users choose between several on-device models or supply their own cloud API key, with an on-device anonymization step that can redact sensitive information before any optional cloud processing. Output can be exported to formats including PDF, Word, Markdown, and timestamped JSON. Because the app has no server and no user database, the company emphasizes that there is nothing to breach or hand over. Thoth requires Apple Silicon and is aimed at privacy-conscious professionals, those handling confidential information, and neurodivergent users who benefit from automatic capture, and it is available on the Mac App Store with an iOS beta in progress. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Castmagic is a free tier with paid upgrades (freemium); Thoth is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Castmagic | Thoth |
|---|---|---|
| Core capability | Transcription of audio and video with speaker diarization | 100% local, on-device recording, transcription, and summarization |
| Standout feature | Automatic generation of summaries, show notes, titles, and timestamps | Dual-channel capture of microphone and system audio |
| Team usage | Repurposing of recordings into social posts, newsletters, and blog content | On-device speaker detection with color-coded transcripts |
| Integrations | Direct import from sources including YouTube, Google Drive, and Zoom | Whisper-based transcription supporting many languages |
| Languages & capture | Semantic search across a media library of past recordings | On-device anonymization to redact sensitive content |
| Best-fit workflow | Multi-brand workspaces with templates and approval workflows for teams | Export to PDF, Word, Markdown, and timestamped JSON |
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.
Thoth
Choose Thoth if you need professionals handling confidential or regulated information — strengths include fully local processing with no cloud requirement and no user database.
Castmagic
Thoth
It depends on your workflow. Castmagic is strong for transcribing podcast episodes and generating show notes and summaries, while Thoth is strong for professionals handling confidential or regulated information. Both transcribe and summarize meetings.
Castmagic is a free tier with paid upgrades and Thoth 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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