The best alternatives to Gymwatch are Ignite for iPhone, Zeamo, and TacoShell. If these 3 options don't work for you, we've listed a few more alternatives below.
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Postman Recorder by DevTools— Export Postman APIs from browser
TacoShell is a website for nutrition tracking that has a simple, shell-style interface. You can add nutrients by simply typing a line instead of clicking through menus, which can save a lot of time. So for example, you can just write "230g chicken breast".
Honeycomb is a configurable, mobile first, fluid scss framework for creating websites and web apps that respond gracefully to any screen size. Grids, fonts and gutters that resize fluidly and in unison, personalised through your own honeycomb.config.scss file.