Turn any document into a two-voice podcast you can listen to on your commute
Create any sound for sleeping
Stage
Not given
Not given
Founded
Not given
Not given
Based in
Not given
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Pricing model
Freemium
Paid
Pricing
Free: 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
One-time purchase with no subscription or in-app purchases.
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
Generate unlimited custom sounds from text descriptions
Twelve built-in classic sounds including white noise, rain, ocean, and thunderstorm
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
Sounds generated on-device never repeat during one night, using multiple rotating takes over differently-timed background beds
No accounts, servers, or data collection—everything stays on your device and works offline
One-time purchase with no subscription, in-app purchases, or paywall
Sounds synthesized from descriptions rather than played from a fixed library
All features available immediately on first launch with full access to sound creation and customization
DuoCast
Sleep Drift