You do need to sign up for an account. It's free. This is one of the free strips with the most options. Cartoons can be on "one scene" as shown below or as many frames as you choose. It can even be a whole story! Loading the program does take awhile, so it may not be something to do with and entire class at one time. You can even create your own character (from within some limited choices.) As you can see below, I've created one account for my Julian Middle School students to use from school or home.