Best Rep Calculator Apps

227+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated June 2026

Out of 227+ rep calculator apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Rep Calculator

1RM Calculator#1

1RM Calculator by Yuri Koshiishi

One Rep Max Strength
Editor's Choice
💪 Health & Fitness
4.9(86 ratings)
FreeIn-App Purchases
1RM Calculator screenshot 1
1RM Calculator screenshot 2
1RM Calculator screenshot 3
1RM Calculator screenshot 4
1RM Calculator screenshot 5

The 1RM Calculator is a powerful application that helps users determine their one-rep max strength and track their progress over time. With features like RPE-based 1RM calculation, rep max estimation, and customizable exercise selection, this app provides a comprehensive solution for fitness enthusiasts and athletes looking to optimize their strength training regimen.

RepCount - Gym Workout Tracker#2

RepCount - Gym Workout Tracker by Siper Apps AB

Weight Lifting & Exercise Log
Strong Contender
💪 Health & Fitness
4.8😊(172 ratings)
FreeAdsIn-App Purchases
RepCount - Gym Workout Tracker screenshot 1
RepCount - Gym Workout Tracker screenshot 2
RepCount - Gym Workout Tracker screenshot 3
RepCount - Gym Workout Tracker screenshot 4
RepCount - Gym Workout Tracker screenshot 5
RepCount - Gym Workout Tracker screenshot 6

Track your weight lifting progress and improve your workouts with RepCount. This gym workout tracker helps you monitor your performance and set new fitness goals easily. Download now to take your training to the next level!

What We Love

  • 👍 Great app
  • 🚀 Simple and intuitive interface
  • 🚀 Easy to use and log workouts
  • 🚀 Customizable exercises and routines

Room to Improve

  • 🐛 Occasional crashes or bugs
  • 💡 Lack of Apple Watch integration
  • 💡 Missing calorie tracking
My 1 Rep Max#3

My 1 Rep Max by James T. Constant

1 Rep Max Calculator
Worth Considering
💪 Health & Fitness
4.4(111 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

This 1 Rep Max calculator and log book helps you estimate your maximum lift weight and track progress over time using popular formulas. Simply select a lift, enter weight and reps, and calculate your 1 Rep Max, or upgrade for custom lifts and advanced features.

More Rep Calculator apps to explore

4
531 Strength
531 Strength
531 Strength
Keep focus on your lifts
Free

A weightlifting app designed for users following the 5/3/1 program, allowing them to save their 1 Rep Max for each exercise and view calculated weights for each cycle step to streamline their workout. Perfect for those who want easy access to tailored exercise weights.

💪 Health & Fitness
(11K)
5
1RM Calculator - One Rep Max
1RM Calculator - One Rep Max
1RM Calculator - One Rep Max
Util for estimating max lifts
Free
💪 Health & Fitness
(217)
6
Rep Max Calculator
Rep Max Calculator
Rep Max Calculator
by Roman Shimchenko
Free

This application calculates the maximum weight that can be lifted a certain number of times, allowing users to determine their repeated maximum for powerlifting, bodybuilding, and fitness. Simply input the weight and number of repeats to get your calculated RM.

💪 Health & Fitness
(3)
7
One Rep Max: 1RM Calculator
One Rep Max: 1RM Calculator
One Rep Max: 1RM Calculator
Strength Tracker & Gym PR Tool
Free
💪 Health & Fitness
(162)
8
1RM Club: Rep Calculator & Log
1RM Club: Rep Calculator & Log
1RM Club: Rep Calculator & Log
Smash your goals with 1RM Club
Free

This fitness app helps users track, improve, and accelerate their fitness journey by logging workouts, calculating rep max strength, and monitoring progress over time. With features like a stopwatch, rest break timers, and a global challenge leaderboard, users can stay motivated and push their limits to achieve their fitness goals.

💪 Health & Fitness
(1)
9
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

Experience a beautifully designed calculator with large buttons and a clear display for quick and efficient calculations. Try it now to discover the simplicity and ease of use for your everyday arithmetic needs.

🔧 Utilities
(404K)
10
Calculator·
Calculator·
Calculator·
Big Basic Calculator
Free

A simple and intuitive calculator app with essential functions like addition, subtraction, multiplication, and more. Customize with multiple color schemes, copy results easily, and use additional functions on iPad. Experience the perfect balance of features and simplicity today!

🔧 Utilities
(33K)
11
1RM Percentage Calculator
1RM Percentage Calculator
1RM Percentage Calculator
Percentage-Based Workout Util
Free
💪 Health & Fitness
(3)
12
1 Rep Max Calc
1 Rep Max Calc
1 Rep Max Calc
by Will Stankus
Free

This strength training companion helps users unlock their true potential by accurately calculating their one rep max and providing comprehensive rep maxes at various intensities. With a user-friendly interface, seamless unit conversion, and offline support, it enables users to track progress, tailor their training program, and optimize their workout routine.

🔧 Utilities
(6)
13
Loan Calculator‰
Loan Calculator‰
Loan Calculator‰
Simple Loan Calculator
Free

Calculate your loans or mortgages effortlessly with this simple loan calculator app. Just input the amount, term, and rate to get quick results. Try it now!

💰 Finance
(96K)
14
Calculator for iPad₊
Calculator for iPad₊
Calculator for iPad₊
Basic, Scientific, Plus Calc
Free

A powerful math solver and scientific calculator for iPad and iPhone, featuring advanced functions and quick calculations. Share your results easily and master your business expenses with percentage calculations. Get it now!

🔧 Utilities
(126K)
15
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

A calculator app with a built-in history feature that keeps track of your calculations without any ads. Calculate effortlessly and access your past computations instantly.

💰 Finance
(23K)
16
Simple One-Rep-Max Calculator
Simple One-Rep-Max Calculator
Simple One-Rep-Max Calculator
Calculate your 1RM like a pro!
$0.99

Calculate your one-rep max with confidence using a reliable calculator that provides realistic numbers through multiple proven formulas. Know your limits, choose the right weights, and progress safely to achieve your strength goals.

💪 Health & Fitness
(1)
17
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

A color calculator app that helps users find complementary color schemes for design projects. Simply input a base color and let the app generate harmonious color combinations for your projects. Try it now to elevate your design choices!

🔧 Utilities
(15K)
18
Rep Reserve
Rep Reserve
Rep Reserve
Calculate Your Strength
Free

This application helps you calculate and track your strength by providing a range of statistics for each set, including one-rep max, strength rating, and rate of perceived exertion. With a user-friendly calculator and customizable exercise options, you can easily track your progress and plan your next set.

💪 Health & Fitness
(14)
19
Basic Calculator+
Basic Calculator+
Basic Calculator+
Basic Four Function Calculator
Free

A user-friendly basic four-function calculator with a clear display and large buttons for easy calculations, available on both portrait and landscape modes. Download now for a straightforward and efficient way to handle your math tasks!

🔧 Utilities
(243K)
20
Setgraph: Gym Workout Tracker
Setgraph: Gym Workout Tracker
Setgraph: Gym Workout Tracker
Weight Lifting Strength Log
Free

Track your workouts effortlessly with Setgraph, offering fast and simple logging, powerful organization features, customization options, advanced exercise analytics, motivation tools, and Apple Watch health integration. Boost your fitness journey today!

💪 Health & Fitness
(5.6K)

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