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DuoCast vs Fluence.

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 Fluence.
DetailDuoCast logo DuoCastFluence. logo Fluence.
What it doesTurn any document into a two-voice podcast you can listen to on your commute Your books and documents, read aloud by a voice you choose.
StageNot given Not given
FoundedNot given Not given
Based inNot given LU
Pricing modelFreemium Paid
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 €14.99 one-time payment. Ten documents free.
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
  • Converts PDFs, ebooks, reports and articles to audio
  • Highlights text as it is read
  • Bookmark and note-taking
  • Create custom voice from recording
  • Question answering about documents
  • Offline functionality
  • All processing on device
  • Supports multiple file formats
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
  • All processing happens on your phone with no cloud sync or data sharing
  • Built-in voice in 31 languages or use your own recorded voice
  • One-time payment with no subscriptions
  • Answers questions drawn from your documents
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)31
Citation Flow (Majestic)1023
Referring domains (Majestic)512

5 details filled in for both companies.

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