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DuoCast vs Relayo

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 Relayo
DetailDuoCast logo DuoCastRelayo logo Relayo
What it doesTurn any document into a two-voice podcast you can listen to on your commute Screen mirroring for iPhone and Mac to Chromecast, Google TV, Samsung and LG TVs
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
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 Not given
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
  • Mirror entire iPhone or Mac display to TV
  • Cast video files in full quality without re-encoding
  • Automatic TV discovery on Wi-Fi network
  • No app or account required on TV
  • Audio-only casting mode
  • Adaptive quality based on Wi-Fi strength
  • Menu bar integration on Mac
  • Converts unsupported video formats while playing
  • No data collection or servers
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
  • Only app that enables iPhone screen mirroring to Chromecast without AirPlay
  • No account, setup or TV app installation needed
  • Automatic network discovery works across multiple TV brands
  • Preserves full video quality when casting files
  • Privacy-focused with no servers or data collection
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 checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)1016
Referring domains (Majestic)52

3 details filled in for both companies.

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