invi sms messenger with the advancements looks and style... My only complaints about invi is no individual contact ringtones and it's not updated often enough, other then that it looks awesome with it's feature rich texting.
https://play.google.com/store/apps/details?id=com.invi.messenger&hl=en
https://play.google.com/store/apps/details?id=com.invi.messenger&hl=en