Yes, both Speak4me and FreeTTS offer a Free Trial.
Pricing for Speak4me Starts at $12.99/month whereas for FreeTTS Starts at $19/month.
FreeTTS offers several advantages, including Supports almost all languages, Produces high-quality audio, Free of charge, Allows commercial use, Fast text-to-speech conversion and many more functionalities.
The cons of FreeTTS may include a Limited weekly characters, Removes audio after 24 hours, No offline functionality, Doesn't support voice customization. and No real-time text-to-speech feedback
