Best 1Rm Apps

248+ iOS apps curated and reviewed

4.7 avg rating
17 free apps
Updated September 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 (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Calculate your 1RMCalculate your 1RMFree4.7★ (7)NoYesAug 2026
21RM Calculator - One Rep Max1RM Calculator - One Rep MaxFree4.5★ (222)NoYesSep 2026
31-RM1-RM$1.994.8★ (1.1K)NoNoAug 2026
41RM Calculator1RM CalculatorFree4.9★ (109)NoYesSep 2026
5One Rep Max: 1RM CalculatorOne Rep Max: 1RM CalculatorFree4.4★ (178)YesYesSep 2026
6MaxLift - 1RM CalculatorMaxLift - 1RM CalculatorFreeYesNoAug 2026
7BurstReps - AI Diet & TrainingBurstReps - AI Diet & TrainingFreeYesYesJul 2026
8oneRM calculator(1RM)oneRM calculator(1RM)FreeNoNoMay 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
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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.

1RM Calculator - One Rep Max#2

1RM Calculator - One Rep Max by David Bai

Util for estimating max lifts
Strong Contender
💪 Health & Fitness
4.5(222 ratings)
FreeIn-App Purchases
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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.

1-RM#3

1-RM by Bodybuilding.com

Calculate and track your 1RM
Worth Considering
💪 Health & Fitness
4.8😐(1.1K ratings)
$1.99
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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.

What We Love

  • 🚀 Great for calculating reps
  • 👍 Good, simple app
  • 👍 Quick easy to use tool

Room to Improve

  • 🐛 Numbers won't work
  • 🐛 Single digit reps only
  • 🐛 Links to articles not working
  • 🐛 Keeps billing user
  • 🐛 Inability to filter exercise history
  • 🐛 Cannot modify notes or dates
  • 🐛 Lack of decimal support
  • 🐛 Cannot upload old data

More 1Rm apps to explore

FAQ about 1Rm

What are the best 1rm apps for iPhone?
Calculate your 1RM tops our 1rm apps ranking as of September 2026, with a 4.7-star average from 7 App Store ratings, and it's free to download.
Yes — 17 of the top 1rm apps we rank are free to download, including Calculate your 1RM and 1RM Calculator - One Rep Max.
Calculate your 1RM has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 248+ 1rm apps on the iOS App Store as of September 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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