This app was mentioned in 2 comments, with an average of 1.50 upvotes
Just make a account.....asks for name and phone......hit on search for trade and use the filters to filter to a specific payment method you want......the seller with message you with payment details.....as soon as you pay the Bitcoins will me released from the seller.
For an easier experience try their android web app https://play.google.com/store/apps/details?id=com.thanksmister.bitcoin.localtrader
There's another app on Google Play for managing LocalBitcoin accounts. It just seems to me that if you've got one app with recent updates, a higher rating, and more than 10 times as many downloads, you'd pick that over the one he did.
Here's THE APP I was thinking of.