I’ve been searching for a while for audience polling software that uses smartphones/internet enabled devices and is free. I had some good experiences with kahoot.it, except it’s a bit limited in what you can do.
I’ve been quite interested in participoll as well, except it’s not available for mac computers yet (which is what I use). Participoll has the great advantage of integrating into your powerpoint presentation, so you don’t have to leave to your web browser every time you want to poll the audience. I haven’t had an opportunity to try it yet though, so I’m not sure how well it works.
Socrative recently updated their interface; I tried it before, and it was rather unappealing and not very user-friendly. I was getting desperate, so I decided to try it again recently. I was very impressed with their changes and it’s definitely a very strong viable option. Currently running in “beta”, they are offering their services for free and the system is designed to take around 50 students. One can try more students, but they state they are not setup for it.
Here’s a video showing a quick tour:
Here are some screenshots from the mobile device (Android Galaxy S4):