There are plenty of fancy body composition scales that help you better understand how well your diet and workout are working. Spren for iPhone lets you use your smartphone to do it. It is a body composition scanner that tracks your fat loss and muscle gains.
More gadgets like this ➡️ : here
This app doesn’t require any other hardware to work. It creates a multi-page report that shows your body fat %, fat mass, lean mass, fat, and resting metabolic.
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