Pull Ups - 0 to 20 pull up challenge workout coach is an iPhone app designed to help users build upper body strength, physique, and stamina through pull up exercises. Whether you're a beginner working on your first pull up or an advanced athlete aiming for 50+ pull ups, this app has you covered.

The app offers 11 pull up training plans to cater to different fitness levels. Users can track their personal records and monitor the total number of pull ups completed across all workouts. The training history feature allows users to review their progress over time.

One of the standout features of this app is the customizable workout reminder notifications, ensuring that users stay on track with their training. Additionally, each workout comes with warm up routines to prepare the body for the pull up exercises.

To get started, users are advised to test their maximum number of pull ups before choosing a training level. The rest timer helps users rest between each set of pull ups, and the default rest time is set at 2 days (48 hours). However, users have the flexibility to adjust the rest time under Settings if they prefer a different duration between workouts.

With Pull Ups - 0 to 20 pull up challenge workout coach, users can progressively work towards their pull up goals and achieve impressive upper body strength.