Excellent App
This app does an excellent job of progressively building up the number if pull ups you can so. It has reasonable rest periods between both sets and days.
FussballSask about Runtastic Pull-Ups PRO Trainer, v2.0
This app does an excellent job of progressively building up the number if pull ups you can so. It has reasonable rest periods between both sets and days.
FussballSask about Runtastic Pull-Ups PRO Trainer, v2.0