Best 1Rm Calculator & Strength Log Apps

250+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated October 2026

1RM Calculator & Strength Log is the household name in 1rm calculator & strength log, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top 1Rm Calculator & Strength Log Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
11RM Calculator & Strength Log1RM Calculator & Strength LogFree—NoYesAug 2026
21RM Calculator1RM CalculatorFree4.9★ (130)NoYesNov 2026
3One Rep Max: 1RM CalculatorOne Rep Max: 1RM CalculatorFree4.4★ (185)YesYesNov 2026
41-RM1-RM$1.994.8★ (1.1K)NoNoOct 2026
51RM Percentage Calculator1RM Percentage CalculatorFree5.0★ (4)NoYesOct 2026
6MaxLift - 1RM CalculatorMaxLift - 1RM CalculatorFree—YesNoOct 2026
7Metric Lift Strength TrainingMetric Lift Strength TrainingFree4.0★ (45)NoYesNov 2026
81 Rep Max Calc1 Rep Max CalcFree4.5★ (12)NoNoOct 2026

Top Picks for 1Rm Calculator & Strength Log

1RM Calculator#2

1RM Calculator by Yuri Koshiishi

One Rep Max & RPE Calculator
Strong Contender
💪 Health & Fitness
4.9(130 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.

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😞(185 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 Calculator & Strength Log apps to explore

FAQ about 1Rm Calculator & Strength Log

Are there free 1rm calculator & strength log apps for iPhone?
Yes — 18 of the top 1rm calculator & strength log apps we rank are free to download, including 1RM Calculator & Strength Log and 1RM Calculator.
1RM Calculator & Strength Log has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 250+ 1rm calculator & strength log apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.