What is a good budget phone for both games and apps?

you should take the arc s because the perfomance and ram and the screen and i think sony strong than the samsung and arc s is ics 

For playing games I think you would like the larger screen on the Sony Xperia Arc S better. They have identical CPU speed and both are dual core. I would look for a phone that has a micro SD slot so you can expand the storage capacity. Overall I think the Sony Xperia Arc S would be the better phone for your needs.