Excellent tool for creating posters!
This is a great tool for students. There are so many icons, fonts, and templates available that it is best to have a specific task in mind for students so they don't spend too much time on that setup. This tool is great for both teachers and students to use, ie book reports, country reports, infographics, presentations, etc. There are so many ways to use this tool!
How I Use It
I use Piktochart and their free templates to create posters, headers, and any other graphic I need in my classroom. The only difference between the paid and free accounts is the access to the templates and the formats that can be downloaded. The piktochart logo is added to all free accounts as well. The charts and maps tools are excellent for illustrating data.