Best 1Rm Apps

248+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated August 2026

Whether you're new to 1rm or looking for an upgrade, our curated collection of 248+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top 1Rm Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Calculate your 1RMCalculate your 1RMFree4.7★ (7)NoYesAug 2026
2One Rep Max: 1RM CalculatorOne Rep Max: 1RM CalculatorFree4.4★ (178)YesYesAug 2026
31RM Calculator - One Rep Max1RM Calculator - One Rep MaxFree4.5★ (217)NoYesAug 2026
41-RM1-RM$1.994.8★ (1.1K)NoNoAug 2026
51RM Calculator1RM CalculatorFree4.9★ (109)NoYesAug 2026
6MaxLift - 1RM CalculatorMaxLift - 1RM CalculatorFreeYesNoAug 2026
71RM - One Rep Max Calculator1RM - One Rep Max CalculatorFreeYesYesMay 2026
8My 1 Rep MaxMy 1 Rep MaxFree4.4★ (111)NoYesJul 2026

Top Picks for 1Rm

Calculate your 1RM#1

Calculate your 1RM by JosmanTek

Editor's Choice
💪 Health & Fitness
4.7(7 ratings)
FreeIn-App Purchases
Calculate your 1RM screenshot 1
Calculate your 1RM screenshot 2
Calculate your 1RM screenshot 3
Calculate your 1RM screenshot 4
Calculate your 1RM screenshot 5

This app helps you determine your one-repetition maximum (1RM) for various strength exercises. It uses several well-known formulas to calculate your maximum lift capacity, aiding in tracking training effectiveness and progress.

One Rep Max: 1RM Calculator#2

One Rep Max: 1RM Calculator by Charles Vanderhoff

Strength Tracker & Gym PR Tool
Strong Contender
💪 Health & Fitness
4.4(178 ratings)
FreeAdsIn-App Purchases
One Rep Max: 1RM Calculator screenshot 1
One Rep Max: 1RM Calculator screenshot 2
One Rep Max: 1RM Calculator screenshot 3
One Rep Max: 1RM Calculator screenshot 4
One Rep Max: 1RM Calculator screenshot 5
One Rep Max: 1RM Calculator screenshot 6

Safely estimate your maximum lift potential for various strength exercises using scientific formulas. Track your progress visually, set goals, and fine-tune estimates with perceived exertion. Ideal for powerlifters, CrossFit athletes, and strength enthusiasts.

1RM Calculator - One Rep Max#3

1RM Calculator - One Rep Max by David Bai

Util for estimating max lifts
Worth Considering
💪 Health & Fitness
4.5(217 ratings)
FreeIn-App Purchases
1RM Calculator - One Rep Max screenshot 1
1RM Calculator - One Rep Max screenshot 2
1RM Calculator - One Rep Max screenshot 3
1RM Calculator - One Rep Max screenshot 4
1RM Calculator - One Rep Max screenshot 5
1RM Calculator - One Rep Max screenshot 6

Estimate your maximum weight lifted for a single repetition. Input your successful lifts and reps to gauge strength, compare progress, and plan future training. Offers advanced features for detailed tracking and analysis.

More 1Rm apps to explore

4
1-RM
1-RM
1-RM
Calculate and track your 1RM
$1.99

Easily calculate and track your one-rep max (1RM) for any lift. Estimate your maximum weight safely without testing, and monitor your progress over time with detailed charts. Improve your training with expert articles.

Calculate 1RM and percentagesSupport for various liftsTrack 1RM history with charts
💪 Health & Fitness
(1.1K)
free
5
1RM Calculator
1RM Calculator
1RM Calculator
One Rep Max Strength
Free

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.

1RM calculation with RPERep max estimationSave 1RM history
💪 Health & Fitness
(109)
free with in-app purchases
6
MaxLift - 1RM Calculator
MaxLift - 1RM Calculator
MaxLift - 1RM Calculator
One Rep Max Calculator
Free

Calculate your maximum weight for a single repetition of any exercise. This tool helps estimate your strength for key lifts, aiding in training program design and progress tracking. Prioritize safety and effective programming by understanding your one-rep max.

1RM calculation for any exerciseEstimate strength levelsAid in training program design
💪 Health & Fitness
(0)
ad-supported
7
1RM - One Rep Max Calculator
1RM - One Rep Max Calculator
1RM - One Rep Max Calculator
One Rep Max Calculator - 1RM
Free
💪 Health & Fitness
(0)
8
My 1 Rep Max
My 1 Rep Max
My 1 Rep Max
1 Rep Max Calculator
Free

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.

1 Rep Max calculatorLogbook for progress trackingMultiple popular formulas
💪 Health & Fitness
(111)
free with in-app purchases
9
1RM - Workout Tracker Gym Log
1RM - Workout Tracker Gym Log
1RM - Workout Tracker Gym Log
Weight Lifting Routine Planner
Free
💪 Health & Fitness
(0)
10
GymMath - Plates & 1RM Calc
GymMath - Plates & 1RM Calc
GymMath - Plates & 1RM Calc
Plates and Rep Max Calculator
Free

Easily calculate the weight plates needed for your desired lift or estimate your one-rep max using science-backed formulas. Customize your bar and plate weights for personalized calculations. Save workouts and view progress in charts.

Plates CalculatorCustomizable bar and plates1 Rep Max Calculator
💪 Health & Fitness
(51)
ad-supported
11
One Rep Max - 1RM Calculator
One Rep Max - 1RM Calculator
One Rep Max - 1RM Calculator
Deadlift, Benchpress, Squat +
Free

Easily calculate your One Rep Max (1RM) for various strength exercises. Track your progress over time with saved calculations, view personalized percentages, and visualize your strength gains through charts. Supports multiple exercise types and custom units.

Calculate One Rep MaxSave and track progressView 1RM percentages
💪 Health & Fitness
(1)
free with in-app purchases
12
1RM 계산기 - 1RM Calculator
1RM 계산기 - 1RM Calculator
1RM 계산기 - 1RM Calculator
by JISU LEE
Free

This app calculates your one-rep max (1RM) using the Epley formula. Simply input your weight lifted and the number of repetitions performed to estimate your maximum strength.

1RM calculationEpley formulaWeight input
💪 Health & Fitness
(0)
free
13
Setgraph: Gym Workout Tracker
Setgraph: Gym Workout Tracker
Setgraph: Gym Workout Tracker
Weight Lifting Strength Log
Free

This app helps users plan and track their weightlifting workouts, focusing on progressive overload and personalized strength training. It offers fast logging, detailed analytics, and customization options to help users achieve their fitness goals.

Fast and simple workout loggingPersonalized workout plansPowerful exercise organization
💪 Health & Fitness
(6K)
free with in-app purchases
14
oneRM calculator(1RM)
oneRM calculator(1RM)
oneRM calculator(1RM)
Simple 1RM calculator
Free
💪 Health & Fitness
(0)
15
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
16
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 and improve their strength training. It allows for detailed logging of workouts, calculation of rep maxes, and visualization of progress through dynamic graphs. Users can also participate in global challenges and utilize built-in timers for rest periods.

Rep Max TrackingWorkout LoggingProgress Tracking Graphs
💪 Health & Fitness
(1)
ad-supported
17
1Rep: 1RM Calculator & PR Log
1Rep: 1RM Calculator & PR Log
1Rep: 1RM Calculator & PR Log
Bench, Squat, Deadlift Tracker
Free
💪 Health & Fitness
(0)
18
LoadPR: 1RM Plate Calculator
LoadPR: 1RM Plate Calculator
LoadPR: 1RM Plate Calculator
Powerlifting PR & Lift Tracker
Free
💪 Health & Fitness
(0)
19
MaxRep: 1RM Calculator
MaxRep: 1RM Calculator
MaxRep: 1RM Calculator
One Rep Max, RPE & Strength
Free
💪 Health & Fitness
(0)
20
1RM Wizard
1RM Wizard
1RM Wizard
Boost lifts with 1RM Wizard!
Free
💪 Health & Fitness
(0)

FAQ about 1Rm

What are the best 1rm apps for iPhone?
Calculate your 1RM tops our 1rm apps ranking as of August 2026, with a 4.7-star average from 7 App Store ratings, and it's free to download.
Yes — 19 of the top 1rm apps we rank are free to download, including Calculate your 1RM and One Rep Max: 1RM Calculator.
Calculate your 1RM has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 248+ 1rm apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Calculate your 1RM uses several established formulas, including Epley, Lander, O'Conner et al, Lombardi, Mayhew et al, Brzycki, and Wathen. You provide the weight lifted and the number of repetitions performed to get your estimated 1RM.
For the most reliable calculations in Calculate your 1RM, it is advisable to perform the calculation with less than 12 repetitions. Calculations beyond this range may become less accurate.

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