Plenty of apps help us navigate outdoors but how do we get around indoors? We talk about how tech giants have agreed on a new indoor mapping data format to enable us to navigate indoor public spaces and how this will make the world more accessible for low vision and blind individuals. We also look at how to up your Instagram game with the help of a few mobile photo editing apps. Finally, we explore the hottest new messaging app, Signal, and why it's dethroning Facebook Messenger.