# 0-20 Pullups Back Trainer

> Using a proven program, you'll be able to complete 20 pull-ups in just 6 weeks!

Canonical page: [https://chrome-stats.com/d/com.zenlabs.challenge.pullups](https://chrome-stats.com/d/com.zenlabs.challenge.pullups)

## Overview

- **ID:** `com.zenlabs.challenge.pullups`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Zen Labs Fitness
- **Category:** HEALTH\_AND\_FITNESS
- **Downloads:** 237,939
- **Rating:** 4.64 / 5 (3,570 ratings)
- **Version:** 6.7.9
- **Last updated:** 2026-01-12
- **First published:** 2016-03-03
- **Publisher country:** US
- **Size:** 88 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.zenlabs.challenge.pullups)
- **Website:** [http://www.zenlabsfitness.com/](http://www.zenlabsfitness.com/)
- **Privacy policy:** [http://www.zenlabsfitness.com/privacy-policy/](http://www.zenlabsfitness.com/privacy-policy/)

## Description

The **0-20 Pullups Back Trainer** is a proven 6-week program designed to help you build upper body strength and complete 20 pull-ups. Whether you're unable to do a single pull-up or want to advance your current fitness, this app guides you every step of the way with voice cues and detailed instructions, including "negative pull-up" techniques to build strength gradually.

Featured by renowned outlets like Glamour Magazine and Apple’s "What’s Hot", this trainer has helped millions join the Zen Challenge Series. Its flexibility allows you to repeat workouts or skip ahead as needed. Join a supportive community for tips and motivation and improve your fitness safely and effectively with Zen Labs’ trusted program.

## Rankings

- #146,017 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.READ_PRIVILEGED_PHONE_STATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.android.vending.BILLING`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.google.android.providers.gsf.permission.READ_GSERVICES`
- `com.zenlabs.challenge.pullups.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Overall, the app is motivating and easy to use, with good beginner-oriented progression and an ad-free experience. However, its onboarding excludes true newcomers, progression can be too steep, and there are reliability issues and missing features that limit effectiveness. Addressing these would broaden accessibility and improve progression fidelity.

### Pros

- Motivation and progress: users report the app motivates them and helps build pull-ups, with mental blocks overcome and faster gains.
- Clear, simple progression: easy-to-follow structure with defined reps and rest makes the program approachable.
- Ad-free and registration-free: works without ads or mandatory sign-in, providing a lightweight experience.
- Good for beginners and progress tracking: seen as a helpful starter tool that lets users track improvements.

### Cons

- Not beginner-friendly: starts at 2 reps and doesn’t teach how to achieve the first pull-up, leaving absolute beginners out.
- Progression feels abrupt: difficulty and rep order can be too dramatic for new users.
- Negative pull-ups not integrated: guidance exists only as text and isn’t interactive within the main app.
- Bugs and reliability: occasional progress loss when switching between apps during an active session.
- Missing features: lacks customizable rest times and automatic adjustment/partial-day progress tracking.

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.zenlabs.challenge.pullups)