I am just back from a first grade conference sponsored by SDE in Illinois. I had a great time with a nice group of teachers and we spent some time talking about apps. I've added a few for you to check out on the App page - just click on the word in the ribbon above.
One thing we talked about was the fact that even if you do not have app-enabled devices in your classroom it's nice to be able to recommend some educational apps to parents. Your students are probably already playing on their parents' smartphones while waiting in line at the bank or going through the grocery store, so we might as well try and capture some of that time for skill-building.
Keep checking the Apps page above. I'll try and add anything new I think you'll like and I always try and find things that are free or almost free. Have fun!