Yes, both Better Voice and OpenPhone offer a Free Trial.
Better Voice is designed for Individuals, Freelancers and Small Business.
OpenPhone is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Better Voice Starts at $20 whereas for OpenPhone Starts at $10/User/Month.
Some top alternatives to Better Voice includes CloudTalk, VoIPstudio, VoiceIQ, Qualified, Workvivo, Zip Conferencing, Branded Bridge Line, TurboBridge, ConferenceCaller.com, OpenVoice, DialSource and OpenPhone.
Some top alternatives to OpenPhone includes Dialpad Talk, RingCentral Office, Vonage Business, Grasshopper, Dialpad Sell, Voxloud, Ringover, Qualified, VoiceLine, Workvivo and Simple Phones.