Cerberus
*Edit* Sorry you said free. Android Device Manager? You get what you pay for though. Cerberus is a one time payment and much better in features but pig ugly UI.
I'm up to £1.65 for me survey app now
Don't think I've had one for 3 or 4 weeks...
Just read on Android Police that Hangouts will be dropping SMS support from tomorrow. I've looked around and the best alternatives appear to be EvolveSMS and Hello SMS. Both look really slick and feature rich. I prefer the UI of these over Chomp/Handcent etc.
The feature was confusingly named "SMS for Hangouts," and was basically a way to forward notifications. If a user didn't have a data connection, Google would forward Hangouts messages via SMS. It was only available in countries with limited mobile data connectivity like India and Guam. Now that the Hangouts app supports SMS natively, Google must feel less compelled to keep up with this feature.
This doesn't affect SMS support in the Hangouts app
Just read on Android Police...