TP-LINK Archer C5 - TP Link Archer C5 is a great router for less than $100. It supports 802.11ac, has simultaneous 2.4 GHz and 5GHz bands and two USB 2.0 ports for file sharing and storage.
Wi-Fi Widget - See, test, and share your wifi without unlocking your iPhone
MIWIFI by Xiaomi - Wifi router beta with a twist: you build it yourself
Waflee - Provides an effortless way to connect to your Wi-Fi
Velop - Whole-home mesh Wi-Fi by Linksys
Hotel Wifi Test - Choose your hotel by the quality of their WiFi