Yes, both SlideLizard and Mentimeter offer a Free Trial.
SlideLizard is designed for Individuals, Medium Business and Small Business.
Mentimeter is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Mentimeter begins at $9.99/User/Month when Billed Yearly, while pricing details for SlideLizard are unavailable.
Some top alternatives to SlideLizard includes CLiKAPAD, Zeetings, Slideasy, Mentimeter, Conferences i/o, OMBEA Response, MeetingPulse, iVote-App, Qwizdom and Sendsteps.
Some top alternatives to Mentimeter includes Glisser, CLiKAPAD, Zeetings, SlideLizard, Zoho Show, Slides, Vevox, Slido, Microsoft PowerPoint and AhaSlides.