Neither ttsMP3 nor Wavflow offers a free trial.
Pricing details for both ttsMP3 and Wavflow are unavailable at this time. Contact the respective providers for more information.
ttsMP3 offers several advantages, including Free use, 28 languages supported, Multiple accents available, Online listening available, Converts speech to MP3 and many more functionalities.
The cons of ttsMP3 may include a Limited to 3000 characters, No offline functionality, Limited language accents, Choppy voice transitions. and Additional features require learning
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