0-20 Pullups Back Trainer

Contains adsIn-app purchases
3.57K reviews
Content rating
Rated for 3+
100K+
Downloads
Content rating
Rated for 3+
Learn more
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About this app

◎ Join the millions completing the Zen Challenge Series!
◎ 0 to 20 Pull-ups in 6 weeks!
◎ Featured on Glamour Magazine, Yahoo!’s Appolicious, Popsugar Fitness, Apple’s “What’s Hot”, Apple’s “New & Noteworthy”, and doctor recommended on healthTap!

Are you ready for the 20 Pull-Ups Challenge? Train your upper body/core and build up to completing 20 pull-ups with same people that brought you the OFFICIAL #1 5K Training app C25K®.

Using a proven program, the 20 Pull Ups Challenge slowly but surely builds and strengthens your upper body, having you perform specific reps of pull ups with a period of rest in between.
Just simply follow and perform the instructed number of reps, and after 6 weeks, you will be able to do 20 pull ups straight!

Can’t do a single pull up? No problem! The app has a built in program with detailed instructions on how to do what is known as a “negative pull up”. These negative pull up exercises will help you build enough strength until you can do a proper full pull up!
Can’t physically finish a certain day’s workout? You can always repeat it until you’re ready to move on! Are the first couple weeks’ workouts too easy for you? The app allows you to skip ahead to any day you wish!


≈ It's easy and straight forward to start ≈
1. Just open the app and start!
2. Listen to the voice cues!

★ Join the community for help, tips, and advice!
http://www.facebook.com/zenlabsfitness
http://twitter.com/zenlabsfitness

★ The Forums are a great place to ask all your fitness questions!
http://forums.zenlabsfitness.com

★ Read our blog for great health tips!
http://www.zenlabsfitness.com/blog/

Questions/comments regarding the app? Please email us at [email protected], or visit us at www.zenlabsfitness.com.

Zen Labs is a proud supporter of the National Breast Cancer Coalition. We are passionate about finding a cure for breast cancer and proudly donate to their cause. www.breastcancerdeadline2020.org

“Never doubt that a small group of thoughtful committed citizens can change the world. Indeed, it is the only thing that ever has.”
~ Margaret Mead

Legal Disclaimer

This app and any information given by it or by Zen Labs LLC are for educational purposes only. They are not intended nor implied to be a substitute for professional medical advice. You should always consult your healthcare provider before beginning any fitness program.
Using a proven program, you'll be able to complete 20 pull-ups in just 6 weeks!
Updated on
Jan 12, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info, Financial info and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

3.52K reviews
A Google user
April 10, 2020
You will occasionally reach sessions that you can't complete. Just redo that session the next time, or however many times it takes you to do it. Then you'll progress until you hit another one. But again, stay on that session until you conquer it. I find doing this MWF works best. Monday often is the breakthrough day after the 2 days off. This app has really helped me with significant muscle gains.
38 people found this review helpful
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Konrad
July 11, 2021
I like the design of the app, it's nice, easy to use. After 3 weeks of training I am developing tennis elbows, they are starting be painful. Increase in reps numbers is too steep, and if one needs to repeat almost every day at least twice, then the whole program would take much much longer than 6 weeks, assuming that progress is achievable and realistic.
17 people found this review helpful
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Zen Labs Fitness
September 2, 2021
Hi, we are always looking to improve the experience for our users, and really appreciate the feedback. If there is anything specific we can look into, please contact us at [email protected].
A Google user
May 15, 2019
they asked nicely for a review so here ya go! this is a great app, I've been using this and some of their others for a while and if you're like me and struggle with discipline then having a clear program to follow really helps, and the feeling of progression does as well. As for the app itself I've never had a problem with it, no glitches at all and a clean, simple to use UI. And I'm getting much stronger too! Thanks guys!
41 people found this review helpful
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What’s new

- small optimizations and upgrades