Best 1Rm Calculator & Strength Log Apps

249+ iOS apps curated and reviewed

4.1 avg rating
17 free apps
Updated August 2026

1RM Calculator & Strength Log is the household name in 1rm calculator & strength log, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

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

#AppPriceRatingAdsIn-App PurchasesUpdated
11RM Calculator & Strength Log1RM Calculator & Strength LogFreeNoYesAug 2026
21RM Calculator1RM CalculatorFree4.9★ (109)NoYesSep 2026
3One Rep Max: 1RM CalculatorOne Rep Max: 1RM CalculatorFree4.4★ (178)YesYesSep 2026
41-RM1-RM$1.994.8★ (1.1K)NoNoAug 2026
51RM Percentage Calculator1RM Percentage CalculatorFree5.0★ (3)NoYesMay 2026
6Timberlog: Log Scale CalcTimberlog: Log Scale CalcFree4.7★ (34)YesYesSep 2026
7Calculate your 1RMCalculate your 1RMFree4.7★ (7)NoYesSep 2026
81 Rep Max Calc1 Rep Max CalcFree4.5★ (11)NoNoSep 2026

Top Picks for 1Rm Calculator & Strength Log

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😞(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
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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 — 17 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 August 2026.
We track 249+ 1rm calculator & strength log apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.