For those that like to make videos with a smartphone, then check out the Movo Smartphone Video Rig with a Stereo Microphone, Grip Handle, & Wrist Strap. (It's also available without the microphone kit for under $30.) This kit is designed to improve the production value of smartphone video by letting one add mics, lights, a tripod, etc. Perfect for live-streaming, vlogging, interviews, performances, etc. (There are three female 1/4" threads for mounting accessories and tripod.) Also an integrated cold shoe mount microphone & lights. The universal mounting clamp fits smartphones 2.2" to 3.6" wide, including the iPhone 7 Plus. Movo says the padded handle (removable) assists with stabilizing video, but there's no gimbal or anything else to assist you. An adjustable wrist strap provides a sense of security by preventing accidental drops. The Stereo Microphone has a selectable 90° or 120° pickup pattern and a frequency response of 35-20k Hz. The kit also includes a foam and a furry windscreen.
With the mic kit, it is $57. But without the microphone, it is under $30.
Giz Wiz Video: https://youtu.be/QOxi5e5GTH0
Amazon link: (Kit w/microphone) http://amzn.to/2xdUEu7 ($56.95 Price as of 9/7/17)