I have use both iRealQuickSMS & Tlert. iReal is good bcause of the quick compose, ex. Volume up and touch. But every cracked iRealQuickSMS i've tried has always expired on me and when i go to text sum1 they reply back w/ "What???", bcause when app expires it leaves a message to the person your texting saying something like, "iPhone iRealQuickSMS Demo". So Tlert has seemed to b more dependable, but you can quick compose with Tlert only when sum1 has texted you. Hopefully they will fix this, bcause the text app takes to long to open up.