Hydrate Mate app for iPhone and iPad

Hydrate Mate is a specialist device that attaches to nearly any brand of 2 litre, 2.5 litre and 3 litre hydration bladder. It measures the amount of liquid inside the hydration bladder and sends that data to your smartphone - turning your smartphone into a visual water level gauge.
Simply plug Hydrate Mate into your hydration bladder, follow the simple on-screen instructions for calibration and then view the volume level of your hydration bladder on your smartphone. The freedom to push limits and venture further without the fear of running out of water.
The app is free of charge.
For more details and to purchase a Hydrate Mate device please go to www.hydrate-mate.com