WiFi Extender, 300Mbps WiFi Booster Range Extender, Plug and Play, Internet Signal Booster Amplifier Supports RP/AP Mode,2.4G Network with Integrated Antennas LAN Port,UK Plug (White) : Amazon.co.uk: Computers & Accessories
WIFI Router Booster - Apps on Google Play
wifi booster for Android - Download the APK from Uptodown