531 Strength

Name: 531 Strength
Rating: 4.7906976 (104 reviews)
Author: Strength Lab

By: Strength Lab

Keep focus on your lifts

Features & Capabilities

531 Strength is a Chrome extension designed for lifters following the 5/3/1 program. It provides a clear and quick overview of all weights, reps, and sets calculated from your saved 1RM for four core exercises. Users can easily view the suggested weights for each cycle step and round them to match the plates they have available, ensuring practical and efficient workouts. This tool simplifies managing your 5/3/1 progression so you can focus on lifting and tracking your strength gains effectively.

User Growth & Download Statistics

App

By:

Downloads:

Rating:

Version:

1.1.7 Last updated: 2025-11-23

Version code:

Creation date:

2022-01-01

Publisher country:

Permissions:

com.google.android.gms.permission.AD_ID Moderate risk
android.permission.ACCESS_ADSERVICES_AD_ID Low risk
android.permission.ACCESS_ADSERVICES_ATTRIBUTION Low risk
android.permission.ACCESS_ADSERVICES_TOPICS Low risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.INTERNET Low risk
android.permission.POST_NOTIFICATIONS Low risk
android.permission.RECEIVE_BOOT_COMPLETED Low risk
android.permission.SCHEDULE_EXACT_ALARM Low risk
android.permission.USE_EXACT_ALARM Low risk

Size:

27.83MB

Email:

53*****@jachobsen.io

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-04

Compare stats and ranking:

Ranking

# 422,818 ▼ 3,179

Other platforms

531 Strength (v2.26)

4.90

(11,431)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Strength Lab

Google Play Store

https://play.google.com/store/apps/details?id=com.jachobsen.fivethreeone

Email:

53*****@jachobsen.io

Website:

https://531.jachobsen.io

User Reviews

Users praise the app for its simplicity, accuracy, and effective tracking aligned with the 5/3/1 strength program. It's favored for its clean interface and core functionality without unnecessary complications. However, multiple users note the absence of tracking features like a calendar found in the iOS version and report bugs, especially concerning premium features. Overall, it is considered the best 5/3/1 app on Android with room for improvements in syncing and customization.

Pros

Simple and user-friendly interface making it easy to use.
Accurate calculations aligned with the 5/3/1 program.
Effectively helps users track progress and manage workouts.
Highly recommended by users familiar with 5/3/1 training.
Includes useful features like workout timers, logs, and graphs.

Cons

Lacks calendar or tracking features present in the iOS version, leading to disappointment among Android users.
Some users experienced bugs, particularly with premium features and purchases.
Could benefit from enhancements like better syncing options, saving additional sets, and customization of plate weights.

Recent reviews

No more calculator.

Ja*****, 2025-01-04

This app is so good, I literally had a nightmare that they changed it up and put ads in it. I've tried most all of the non subscription 531 apps and this is the best.