Any recommendations would be useful.
For my phone / tablet
Thanks
I haven’t used it but I have heard good things about dragonbox. I think it is a games that involves pre algebra?
Thanks Korrale4kq. I shall have a look.
I am trying to stay away from i-anything but when it comes to variety of educational apps it beats android hands down. I feel my resolve wavering! 
Sadly Ithings have far superior apps… Right now. But who knows when android really picks up the game.
Android recently release a child friendly tablet. The nubi I think? I am hoping with its increasing popularity that educational childrens apps for the android will take off.
Thanks!
I haven’t found much of any real use. Never mind! 
We like the following apps (not only maths apps, but all kind of “educational”):
Most games from ar-entertainment.net:
Magic Garden with letters and numbers
Snake-Puzzles and Dinosaurs puzzles (with numbers and letters)
My first tangrams
Alphabet puzzles, Numbers puzzles
Find the differences
My first weighting exercises: Very nice
Magic coloring: Coloring according to numbers
Telling time
Halloween Pumpkins - Matching pumpkins, nice
Kindergarten Kitty
Kids Socks plus, sorting of socks, t-shirt and shorts according to pattern, my kids like it very much.
Kids basics - Patterns, Kids basics - Shapes
Kids numbers - nice app for basic addition and substraction
Connect the dots
Zahlen lernen für Kinder, in German, don’t know if there is also an english version, but very nice.