I have not used it but a presenter at a recent training mentioned Keyboarding Without Tears (same company that does Handwriting Without Tears) I checked out the website. It seemed pricey per student, but maybe you can get a special discount price for student licenses since it sounds like you are doing the whole school. (The program might be K-2 or K-3). The iPad app is free, but you need the licenses for the students to use it.
You might try coding apps. There are a lot out there. For kindergarten, one app is Scratch, Jr. It is free. Scratch is the version for older students.
This coming year my district is going all Google so I have been trying to learn as much as I can about Google Apps and Google Classroom this summer. We have 8 iPads-no chrome books in our classrooms. :-( I think Google Slides is similar to PPT. I downloaded the iPad app for Google Slides. The iPad app doesn't seem to have all the functionality as when I used Google Slides (Chrome browser) on my personal laptop. I am going to need to play with it some more. We are a GAFE school so all our students have gmail accounts (our little ones haven't used them.) If you are a GAFE school, you might be able to use Google Slides for a presentation tool. I think you could teach them how to take a photo and insert it into a slide to use. Since typing might be an issue at the beginning of the year with kindergarten, they could even draw/write something on paper and take a photo of it to insert it into the slide.
Check out Christine Pinto https://sites.google.com/a/laverne.e...ith-pinto/home
and follow #GAFE4Littles on Twitter. She started using Google with her TK students in March. She has created templates on her site that you can use. This year she is going to be teaching kindergarten so I am following her to see what she does.
For kindergarten students, typing in usernames and passwords can take time. I made log in cards for my students for several of the sites my students had to log into. Be patient. It takes time. Check out how Christine handled logging in with her TK students.
Another person to check out is Alice Keeler. Her site is Teacher Tech http://alicekeeler.com/
She has all kinds of information and templates for Google Apps. She has published two books on using Google in the classroom. I just purchased them. I bookmarked her site and follow her on Twitter. I tweeted a question to her and got a response back quickly.