Yes, both Big Speak and Voiser offer a Free Trial.
Pricing for Big Speak Starts at $49/month whereas for Voiser Starts at $12/month.
Big Speak offers several advantages, including Multi-lingual voiceovers, Customization available, Voice cloning feature, Realistic audio generation, Text-to-speech capability and many more functionalities.
The cons of Big Speak may include a Character limit for non-registered, Character limit for registered, Voice cloning limited to English, Audio transcription limited languages. and Voice quality unspecified