Hi all, 
I'm thinking of getting rid of my crappy burner phone, and going to an app on my main phone.  Primarily because I don't always have my hobby phone on me, and sometimes, opportunities arise unexpectedly. 
So, I want to know what guys are using, and what are differences in terms of risk? 
Question:
1.  Will apps make phone calls that still go through my AT&T bill?  Can they show up on there?
2.  Do the apps look like burner apps on my iphone homescreen?
3.  Can I lock them so even if someone is using my phone, they can't open the app?
4.  Are there other security issues I should know about?
5.  Do they call non-users of the app?
Here's my understanding:
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Heywire:  Text-only
Burner:  Calls go through my carrier, phone & text.  Refill with credits, and I can get multiple phone numbers.  Not sure of usabilty?
Pinger:  Pretty much same as above?  Can I lock these apps?  Are they obvious on my homescreen?
Coverme:  Any usage?
        
        
        


 
        

