Neither Wavflow nor Audioread.com offers a free trial.
The starting price of Audioread.com begins at $19.99/month, while pricing details for Wavflow are unavailable.
Wavflow offers several advantages, including High accuracy results, Realistic human-like voice synthesis, Intuitive user interface, No subscription required, Credit based system and many more functionalities.
The cons of Wavflow may include a Credit based system, No subscription option, May be expensive, Potentially limited voice options. and No API mentioned
Audioread.com offers several advantages, including Ultra-realistic voice conversion, Works in browser, Supports emails, Supports PDF files, Text drag and drop and many more functionalities.
The cons of Audioread.com may include a Requires JavaScript, Not free after trial, Limited to 18 languages, 100. and copy/paste)