Snapdrop can be used to transfer files between phones and laptops on same wifi. The app is a wrapper around the snapdrop project using webview and some javascript interface for downloads.

Using Snapdrop is as easy as this:

Open Snapdrop app (or visit www.snapdrop.net).
Tap on a device name and select files to transfer.
Make sure both devices are connected to same Wifi or hotspot.
NOTE: You can create hotspot on one phone, connect other devices to it and then transfer files using the app or the