Best Rpe Calculator Apps

250+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated September 2026

Every iPhone needs a few good rpe calculator apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Rpe Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1RPE Calculator: PowerliftingRPE Calculator: PowerliftingFreeโ€”NoYesSep 2026
2Bar Is Loaded - Gym CalculatorBar Is Loaded - Gym CalculatorFree4.9โ˜… (301)NoYesSep 2026
3One Rep Max: 1RM CalculatorOne Rep Max: 1RM CalculatorFree4.4โ˜… (178)YesYesSep 2026
4Iron PlusIron PlusFree5.0โ˜… (19)NoNoJun 2026
5Powerlift ProPowerlift ProFree4.7โ˜… (286)YesYesSep 2026
6StressCalc - RPE CalculatorStressCalc - RPE CalculatorFree5.0โ˜… (4)NoNoMay 2026
7R1+R2 Zs Ze CalculatorR1+R2 Zs Ze CalculatorFreeโ€”YesNoAug 2026
8OneCalc: All-in-one CalculatorOneCalc: All-in-one CalculatorFree4.6โ˜… (5.1K)YesNoSep 2026

Top Picks for Rpe Calculator

Bar Is Loaded - Gym Calculator#2

Bar Is Loaded - Gym Calculator by Danny Li

It's leg day, not brain day.
4.9๐Ÿ˜Š(301 ratings)
FreeIn-App Purchases
Bar Is Loaded - Gym Calculator screenshot 1
Bar Is Loaded - Gym Calculator screenshot 2
Bar Is Loaded - Gym Calculator screenshot 3
Bar Is Loaded - Gym Calculator screenshot 4
Bar Is Loaded - Gym Calculator screenshot 5
Bar Is Loaded - Gym Calculator screenshot 6

This app simplifies weightlifting calculations, instantly determining the correct plates to load onto a barbell. It offers custom settings for inventory and a reverse calculator, along with tools for meet preparation and performance scoring.

What We Love

  • ๐Ÿ‘ Extremely user-friendly and intuitive interface
  • ๐Ÿš€ Fast and accurate plate loading calculations
  • ๐Ÿ’ฐ Completely free with no ads or subscriptions
  • ๐Ÿง  Eliminates mental math during workouts
  • ๐Ÿ“Š Rich feature set including RPE, Wilks, and 1RM calculators
  • ๐Ÿ”„ Reverse calculation functionality for bar loading
  • ๐Ÿ“ฑ Supports both kg and lb conversions seamlessly
  • ๐ŸŽจ Clean and simple design
  • ๐Ÿ‘จโ€๐Ÿ’ป Responsive developer who takes feedback seriously
  • ๐Ÿ“ธ Ability to share loaded bar images on social media
  • โšก Lightweight and quick performance
  • ๐Ÿ‹๏ธ Tailored specifically for powerlifters and weightlifters

Room to Improve

  • ๐Ÿ› Frequent crashes and infinite loading screens
  • ๐Ÿ› 5kg calculation glitch in reverse section
  • ๐Ÿ› Inconsistent weight calculations with kg plates
  • โš™๏ธ Limited barbell weight customization options
  • โš™๏ธ Collar weight incorrectly set to 4kg instead of 5kg
  • โš™๏ธ Rounding errors with decimal plate weights
  • ๐Ÿ“ฑ Compatibility issues with newer devices (iPhone 16 Pro)
  • โŒ No ladies bar weight option (35 lbs)
  • โŒ Missing 7.5kg plate option
One Rep Max: 1RM Calculator#3

One Rep Max: 1RM Calculator by Charles Vanderhoff

Strength Tracker & Gym PR Tool
4.4๐Ÿ˜ž(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.

What We Love

  • ๐Ÿ‘ Easy to use interface
  • ๐Ÿ“Š Tracks progress with charts
  • โž• Plate calculator bonus feature
  • ๐Ÿ“ˆ Supports multiple 1RM formulas
  • ๐Ÿ’ช Helpful for tracking RMs
  • โœ… Calculates 1RM accurately
  • ๐Ÿ†“ Free to use (historically)
  • โœจ Simple and quick
  • ๐Ÿš€ Fast and easy
  • ๐Ÿ’ฏ Best 1RM app
  • ๐Ÿ’ก Addition of 2-10RM
  • โš–๏ธ Weightlifting calculator
  • ๐Ÿ“ˆ Graphs for improvements
  • ๐Ÿ’ฏ Accurate calculations
  • โœ… Works as intended
  • ๐Ÿ’ฏ Best 1RM app on iOS
  • ๐Ÿ’ฏ Straight forward
  • ๐Ÿ‘ Great for tracking maxes
  • ๐Ÿ’ฏ Very useful as is
  • ๐Ÿ’ฏ Best way to track 1RM
  • ๐Ÿ’ฏ User friendly and accurate
  • ๐Ÿ’ฏ Simple and handy

Room to Improve

  • ๐Ÿ’ฐ Subscription required for features
  • ๐Ÿ’ธ Features moved behind paywall
  • ๐Ÿ˜ฉ Useless without subscription
  • ๐Ÿšซ Basic features now paid
  • ๐Ÿ’ธ High subscription cost
  • ๐Ÿ˜  Forced ads for basic features
  • ๐Ÿ“‰ Graphing feature now Pro only
  • ๐Ÿค” Unclear what was purchased
  • ๐Ÿ’ธ Not worth the cost
  • ๐Ÿ“‰ Deleted lifting history
  • ๐Ÿ“‰ Lost all logs with update
  • ๐Ÿšซ Weight limit restriction
  • ๐Ÿ“‰ Poor interface
  • ๐Ÿ› Buggy with dates and lifts
  • ๐Ÿ‘Ž Horribly user-unfriendly
  • ๐Ÿ› Reloads excessively
  • ๐Ÿ› Wonky and now dead
  • ๐Ÿ› Complicated and too much offered
  • ๐Ÿ› Not intuitive for tracking
  • ๐Ÿ› Buggy about dates and lifts
  • ๐Ÿ› Weight limit restriction
  • ๐Ÿ› Max weight limit too low
  • ๐Ÿ› Not useful for intended audience
  • ๐Ÿ› Cannot select other lifts
  • ๐Ÿ› Only logs back squats

More Rpe Calculator apps to explore

FAQ about Rpe Calculator

Are there free rpe calculator apps for iPhone?
Yes โ€” 18 of the top rpe calculator apps we rank are free to download, including RPE Calculator: Powerlifting and Bar Is Loaded - Gym Calculator.
RPE Calculator: Powerlifting has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ rpe calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

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