Best 1Rm Apps

247+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated September 2026

Whether you're new to 1rm or looking for an upgrade, our curated collection of 247+ 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)NoYesSep 2026
21RM Calculator - One Rep Max1RM Calculator - One Rep MaxFree4.5★ (222)NoYesSep 2026
3One Rep Max: 1RM CalculatorOne Rep Max: 1RM CalculatorFree4.4★ (183)YesYesOct 2026
41RM Calculator1RM CalculatorFree4.9★ (114)NoYesOct 2026
51RM - One Rep Max Calculator1RM - One Rep Max CalculatorFree—YesYesSep 2026
61-RM1-RM$1.994.8★ (1.1K)NoNoAug 2026
71RM - Workout Tracker Gym Log1RM - Workout Tracker Gym LogFree—YesYesSep 2026
8MaxLift - 1RM CalculatorMaxLift - 1RM CalculatorFree—YesNoAug 2026

Top Picks for 1Rm

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
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.

What We Love

  • 👍 Simple and easy to use
  • 🚀 Calculates 1 rep max quickly
  • 💡 Helps figure out percentages
  • 👍 Good for tracking routines
  • 👍 Clean design

Room to Improve

  • 🐛 Pro version not working
  • 🐛 Paid features inaccessible
  • 🐛 App crashes after upgrade
  • 🐛 UI needs improvement
  • 🐛 Missing features
  • 🐛 Requires purchase for basic functionality
  • 🐛 Unit conversion costs money
  • 🐛 Can only track one set per day
  • 🐛 Old UI is ugly
One Rep Max: 1RM Calculator#3

One Rep Max: 1RM Calculator by Charles Vanderhoff

Strength Tracker & Gym PR Tool
Worth Considering
💪 Health & Fitness
4.4😞(183 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.

What We Love

  • 👍 Easy to use interface
  • 📊 Tracks progress with charts
  • ➕ Plate calculator bonus feature
  • 📈 Supports multiple 1RM formulas
  • 💪 Helpful for tracking RMs
  • ✅ Calculates 1RM accurately
  • 🆓 Free to use (historically)
  • ✨ Simple and quick
  • 🚀 Fast and easy
  • 💯 Best 1RM app
  • 💡 Addition of 2-10RM
  • ⚖️ Weightlifting calculator
  • 📈 Graphs for improvements
  • 💯 Accurate calculations
  • ✅ Works as intended
  • 💯 Best 1RM app on iOS
  • 💯 Straight forward
  • 👍 Great for tracking maxes
  • 💯 Very useful as is
  • 💯 Best way to track 1RM
  • 💯 User friendly and accurate
  • 💯 Simple and handy

Room to Improve

  • 💰 Subscription required for features
  • 💸 Features moved behind paywall
  • 😩 Useless without subscription
  • 🚫 Basic features now paid
  • 💸 High subscription cost
  • 😠 Forced ads for basic features
  • 📉 Graphing feature now Pro only
  • 🤔 Unclear what was purchased
  • 💸 Not worth the cost
  • 📉 Deleted lifting history
  • 📉 Lost all logs with update
  • 🚫 Weight limit restriction
  • 📉 Poor interface
  • 🐛 Buggy with dates and lifts
  • 👎 Horribly user-unfriendly
  • 🐛 Reloads excessively
  • 🐛 Wonky and now dead
  • 🐛 Complicated and too much offered
  • 🐛 Not intuitive for tracking
  • 🐛 Buggy about dates and lifts
  • 🐛 Weight limit restriction
  • 🐛 Max weight limit too low
  • 🐛 Not useful for intended audience
  • 🐛 Cannot select other lifts
  • 🐛 Only logs back squats

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 — 18 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 247+ 1rm apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

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