  We present DIY-IPS - Do It Yourself - Indoor Positioning System, an
open-source real-time indoor positioning mobile application. DIY-IPS detects
users' indoor position by employing dual-band RSSI fingerprinting of available
WiFi access points. The app can be used, without additional infrastructural
costs, to detect users' indoor positions in real time. We published our app as
an open source to save other researchers time recreating it. The app enables
researchers/users to (1) collect indoor positioning datasets with a ground
truth label, (2) customize the app for higher accuracy or other research
purposes (3) test the accuracy of modified methods by live testing with ground
truth. We ran preliminary experiments to demonstrate the effectiveness of the
app.
