This app was mentioned in 3 comments, with an average of 10.67 upvotes
My tribe has an app. I've started using it while on the bus to and from work. It's not easy, but it's worth it.
You may already be aware but there is a free app on iTunes, it looks like an introduction course but it should get you on your way https://itunes.apple.com/us/app/oneida-basic/id962607316?mt=8
Edit: there's android versions as well Speak Oneida Part One and Oneida Language: Wisconsin
Edit 2: Again you may already have used this resource but Canada has an Oneida cultural centre with Language Lessons available online
Finally gonna start the Oneida language app for reals this time.