https://www.amazon.com/dp/B0014CQQC4?psc=1&ref=ppx_pop_dt_b_asin_title
I placed this mat under my heavy mat, and the moving stopped. I place it on carpet. They offer one for hardwood floors as well.
No the Velcro isn’t included with FightCamp, it’s just a “Do It Yourself” solution I found works well. I put 10 pieces of Velcro under the bag ring. I got the Velcro herelink
Strictly IOS and there is no valid excuse for the Android issue. The trackers are made by a parent company hykso that had an app before the company rebranded to be called fight camp.
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A member of the FC facebook community speculated that the real reason behind no Android app is that Android doesn't allow you to restrict content (workouts) to only work when the trackers are connected and that is possible via iOS. https://play.google.com/store/apps/details?id=com.hykso.hyksofit&hl=en_US&gl=US
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I find the issue very annoying and pretty inexcusable as someone who likes to switch phone brands.
Try buying a wifi extender that plugs into a power outlet and help the internet get to the garage.
For $20, these things are awesome!