Best One Rep Max alternatives: apps like One Rep Max: 1RM Calculator

10+ similar apps compared and reviewed

4.7 avg rating
10 free apps
Updated October 2026

One Rep Max is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to One Rep Max

My 1 Rep Max#1

My 1 Rep Max by James T. Constant

1 Rep Max Calculator
Editor's Choice
💪 Health & Fitness
4.4(119 ratings)
FreeIn-App Purchases
My 1 Rep Max screenshot 1
My 1 Rep Max screenshot 2
My 1 Rep Max screenshot 3
My 1 Rep Max screenshot 4
My 1 Rep Max screenshot 5

Estimate your one rep max weight for various lifts using popular formulas. Track your progress over time with a built-in logbook. Offers custom lift creation and extended repetition calculations with a premium upgrade.

1RM Calculator#2

1RM Calculator by Yuri Koshiishi

One Rep Max & RPE Calculator
Strong Contender
💪 Health & Fitness
4.9(116 ratings)
FreeIn-App Purchases
1RM Calculator screenshot 1
1RM Calculator screenshot 2
1RM Calculator screenshot 3
1RM Calculator screenshot 4
1RM Calculator screenshot 5

Easily calculate your one-rep max (1RM) strength with this app. It supports RPE input and allows you to estimate rep maxes based on your 1RM. Track your progress by saving your 1RM history for different exercises.

531 Strength#3

531 Strength by Henrik Jachobsen

Keep focus on your lifts
Worth Considering
💪 Health & Fitness
4.9😊(12K ratings)
FreeAdsIn-App Purchases
531 Strength screenshot 1
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531 Strength screenshot 4

This app simplifies tracking your progress on the 5/3/1 strength training program. It calculates and displays weights, reps, and sets based on your one-rep max, allowing you to easily plan and execute your workouts. Rounding options help match available gym plates.

What We Love

  • 🚀 Simple and efficient
  • 👍 Intuitive interface
  • 💪 Helps with strength gains
  • 🔧 Customizable features
  • ⏱️ Convenient timer
  • 📊 Tracking and progress logging

Room to Improve

  • 🔢 Inaccurate percentage calculations
  • 🗓️ Lack of ability to plan future workouts
  • 📋 Limited exercise tracking
  • 💰 Paid features not worth the cost

More apps like One Rep Max

4
Barbell Plate Calculator
Barbell Plate Calculator
Barbell Plate Calculator
Plate math made simple
Free

Easily calculate the barbell plates needed to reach a target weight or determine the total weight on a loaded bar. This app simplifies weightlifting math, allowing you to focus on your workout. It offers customizable options and a timer for tracking exercises.

Plate calculation for target weightReverse calculation for current bar weightCustomizable bar weight
💪 Health & Fitness
(236)
free with in-app purchases
5
1RM Percentage Calculator
1RM Percentage Calculator
1RM Percentage Calculator
Percentage-Based Workout Util
Free

This app helps you plan and calculate percentage-based workouts. It includes a one-rep max estimator and customizable weight settings for a personalized training experience. Easily track your sets and reps without manual calculations.

Percentage-based workout sets calculatorOne rep max estimate calculatorCustomizable plate weights
💪 Health & Fitness
(3)
free with in-app purchases
6
Powerlift Pro
Powerlift Pro
Powerlift Pro
#1 Powerlifting App
Free

This app provides AI-powered personalized strength training programs and a comprehensive suite of tools for tracking workouts, managing macros, and calculating lifting metrics. It offers real-time adjustments and weak point optimization to help users achieve their strength goals.

AI-powered personalized training programsReal-time workout adjustmentsWorkout tracker and history
💪 Health & Fitness
(286)
free with in-app purchases
7
Metric - Strength Training
Metric - Strength Training
Metric - Strength Training
Barbell velocity & workout log
Free

This app revolutionizes strength training by offering advanced velocity-based tracking using your phone's camera, eliminating the need for expensive hardware. It provides detailed insights into fatigue, recovery, and progression, helping users maximize gains and prevent injuries.

Smart velocity tracking with cameraAdvanced video analysis of liftsComprehensive workout logging
💪 Health & Fitness
(45)
freemium
8
1RM - One Rep Max Calculator
1RM - One Rep Max Calculator
1RM - One Rep Max Calculator
One Rep Max Calculator - 1RM
Free
💪 Health & Fitness
(0)
9
Bar Is Loaded - Gym Calculator
Bar Is Loaded - Gym Calculator
Bar Is Loaded - Gym Calculator
It's leg day, not brain day.
Free

This app simplifies weightlifting calculations, instantly determining the correct plates to load onto a barbell. It offers custom settings for inventory and a reverse calculator, along with tools for meet preparation and performance scoring.

Plate loading calculator (KG/LB)Customizable barbell and plate inventoryReverse calculator for adding plates
💪 Health & Fitness
(512)
free with in-app purchases
10
KeyLifts - 531 Workout Log
KeyLifts - 531 Workout Log
KeyLifts - 531 Workout Log
5/3/1 & nSuns Strength Tracker
Free

This app simplifies the 5/3/1 strength training program by automatically calculating your sets and weights. Focus on lifting and achieving new personal records without the manual math. It offers features like warm-up sets, rest timers, and custom templates, with advanced options available through a subscription.

Automated 5/3/1 cycle planningPersonal Record (PR) alertsWarm-up set tracking
💪 Health & Fitness
(839)
free with in-app purchases