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DuoCast vs SubGrab

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

DuoCast compared with SubGrab
DetailDuoCast logo DuoCastSubGrab logo SubGrab
What it doesTurn any document into a two-voice podcast you can listen to on your commute Free AI-powered video transcript extractor for 30 platforms
StageNot given Not given
FoundedNot given Not given
Based inNot given AU
Pricing modelFreemium Not given
PricingFree: 3-minute preview of any episode with spoken-intro watermark, no download. Pro: $12/mo for unlimited episodes up to 50,000 characters, MP3 downloads, no watermark, priority queue. Credit pack: $9 for 20 full episodes up to 50,000 characters with MP3 downloads, credits never expire, no subscript Free Starter: 2 free credits on signup. Micro: 5 credits for $3.99. Starter: 15 credits for $5.99. Popular: 40 credits for $11.99. Pro: 100 credits for $22.99. Power: 250 credits for $44.99. Credits never expire. First purchase includes bonus credits.
Key features
  • Paste text, PDF, DOCX upload, or article URL input
  • Two-host conversational format with Q&A dialogue
  • Self-hosted speech synthesis models
  • 5–15 minute episodes with chapters and synced transcript
  • MP3 download capability on Pro plan
  • Free 3-minute preview on any document
  • Priority queue processing for Pro subscribers
  • Support for documents up to 50,000 characters
  • No watermark on Pro and Credit pack episodes
  • Extract captions from 30 video platforms including YouTube, TikTok, Vimeo, Twitch, Loom, and others
  • AI transcription using OpenAI's Whisper with 95% accuracy on clear English speech
  • Support for 90+ languages
  • Download transcripts as TXT, SRT, or VTT with timestamps
  • Speaker labels for AI transcripts to identify who is speaking
  • AI-powered video summaries with key takeaways and chapter markers
  • Support for videos up to 10 hours (16 hours for YouTube and select streaming platforms)
  • Upload audio and video files for transcription
  • Copy transcripts to clipboard or read online
  • Automatic credit refund if transcription fails
What makes it different
  • Two-voice dialogue format keeps listeners engaged better than monotone reading
  • Self-hosted voice models optimized specifically for natural Chinese and Japanese pronunciation
  • No per-character pricing, so long documents are voiced end-to-end without truncation
  • Automatically rewrites source documents into conversational format
  • Credit packs never expire, providing flexible usage without subscription commitment
  • Works with 30 platforms without needing browser extensions or software installation
  • Can extract transcripts even when videos have no captions using AI
  • Supports Vimeo transcription unlike YouTube's built-in transcript viewer
  • Credits never expire
  • Private and secure with no tracking cookies or data selling
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)1 no change since last check4 +3 (up) since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)108
Referring domains (Majestic)54

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