30 Sec plank timer Hack 1.4 + Redeem Codes

Plank is a very popular workout to get fit at home or gym on its own. This 30 Sec plank timer is the simplest app to do the plank. Just set your time and countdown starts. You can use this simple timer also in the gym to do strength exercises sets. The timer will vibrate when times up for resting or do to exercise.