Fitbod - Personalized Strength-Training powered by Machine Learning
YoutubeMultiDownloader - Just like its name YouTube Multi Downloader, it is an online website for downloading the videos of downloading without using any video download and accelerator.
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
KeepVid - A free web application that allows you to download videos
Strong.app - Strenght training logger.
ShareTube - Watch YouTube, synced with friends.