Free Demo: $0/month with 5,000 credits/day (around 5 minutes of audio). Basic: $6.00/month (billed $71.99 annually) with 100,000 credits/day (around 2 hours of audio). Premium: $15.00/month (billed $179.99 annually) with 500,000 credits/day (around 9 hours of audio).
Free trial: 7 days with 500 KI-Credits, no credit card required. Pro: $20/month ($16.67/month billed yearly) with 2,000 KI-Credits per month. Scholar: $60/month ($50/month billed yearly) with 6,000 KI-Credits per month, team of 6 people included, additional seats $10/person/month. KI-Credit packages
Key features
2000+ AI voices across 60+ languages
Upload PDFs and images to convert to speech
Download audio files as MP3
Free plan requires no signup
Multiple voice styles including normal, Premium, and Studio voices
Contextually aware voices that sound natural
Email and priority support options
PDF and EPUB reader with highlighting and annotations
Automatic source attribution for notes
Support for 10,000+ citation styles including APA, IEEE, GB/T 7714
AI-assisted writing from verified sources
Import from Zotero, BibTeX, and RIS
Import notes from Obsidian Vault and Notion
Real-time collaboration with role-based permissions
Infinite whiteboard for visual thinking and organization
What makes it different
Natural-sounding human-like AI voices
No watermarks on free plan
Works anywhere - listen while multitasking
Supports voice cloning and emotional speech
Fast and accurate with no robotic-sounding voices
Unified workflow from reading to submission with traceable source attribution for every statement
Persistent knowledge tree that grows across projects, with AI-powered connection discovery
AI writing that only drafts from user's own verified sources, maintaining research integrity
Repurpose sourced notes into posters, slides, infographics without re-typing
Offline writing with automatic synchronization across devices and team members
SpeechReader
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