Comparison

One Rep Max vs RM REP MAX

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

One Rep Max

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.

Highlights
  • Precise 1RM calculations with 7 scientific formulas
  • RPE integration for fine-tuned estimates
  • Custom exercise tracking for any lift
  • Visual progress graphs
  • Percentage charts for training
  • Goal setting and progress monitoring
Features
Read full description

Stronger Training, Smarter Progress One Rep Max helps you safely and accurately determine your maximum lift potential for bench press, deadlift, squat, and any other strength exercise - without risking injury. Key Features: • Precise Calculations - 7 scientific formulas for accurate strength predictions: Epley, Brzycki, Lombardi, Mayhew, McGlothin, O'Conner, Wathan • RPE Integration - Factor in Rate of Perceived Exertion to fine-tune your max estimates based on how difficult sets feel • Custom Exercise Tracking - Create and monitor any lift that matters to you • Visual Progress - Beautiful graphs show your strength journey over time • Percentage Charts - Quick reference guide for training percentages • Goal Setting - Set targets and track your path to reaching them Perfect for: • Powerlifters optimizing their training cycles • CrossFit athletes tracking multiple movement patterns • Olympic weightlifters monitoring progress • Strength enthusiasts at any level Advanced Features: • Choose between multiple calculation formulas for different lift types • Track unlimited exercises with custom notes • Rate of Perceived Exertion (RPE) - Fine-tune your 1RM estimates based on how difficult sets feel • Analyze detailed statistics including volume and frequency • Set and monitor progress toward specific strength goals The Science Behind The Numbers: Our app employs multiple validated formulas to estimate your one-rep maximum based on your performance with submaximal weights. This provides you with safe strength targets before attempting potentially risky maximal lifts. Safety Note: Heavy weightlifting should always be performed with proper technique and appropriate spotting. This app provides estimates based on scientific formulas, but individual performance may vary based on experience level and training history. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

RM REP MAX

Features
Read full description

REP MAX is a strength training app built for lifters who are focused on one goal: setting new personal records. Track your workouts, monitor your progress, manage rest periods, log recovery data, and compare physique photos—all in one place. REP MAX helps you stay consistent, measure improvement, and push beyond your limits. Features Workout Tracking Log weight, reps, sets, and notes with a simple and efficient interface. Personal Record (PR) Tracking Automatically track and display your best lifts for each exercise. PR Progress Charts Visualize your strength progress over time and see how your records continue to improve. Rest Timer Stay focused between sets with a built-in rest timer and notifications. Condition Tracking Record sleep hours, fatigue levels, and overall condition to better understand your performance. Body Progress Photos Save and compare front, side, and back photos to monitor physical changes over time. Training Volume Analytics Track your recent training volume with easy-to-read charts and statistics. Perfect For Strength athletes Bodybuilders Powerlifters Gym enthusiasts Anyone serious about tracking progress Whether you're chasing a new bench press PR, building muscle, or simply staying consistent, REP MAX provides the tools you need to monitor your journey and stay motivated. Train smarter.

Screenshots

One Rep Max4 screens
RM REP MAX3 screens

Verdict

The call

The clearest difference is update cadence: RM REP MAX at daily against One Rep Max's every 4 days. One Rep Max's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. One Rep Max sells 3 in-app purchases, starting at $2.99 per month and RM REP MAX sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

One Rep Max ships an update every 4 days, RM REP MAX daily. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 8 level
One Rep Max versus RM REP MAX: the parameters behind the verdict, then further details
ParameterOne Rep MaxRM REP MAX
PriceFreeFree
Rating4.4 (178 ratings) — better—
Positive reviews58.2% of reviews—
Number of ratings178 — better—
Update frequencyEvery 4 daysDaily — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size48 MB8 MB
Age rating4+4+
DeveloperCharles Vanderhoffmatsumae ryo

Bugs and requests

One Rep Max

Reported bugs

13 issues
  • Features behind paywall
  • Forced ads
  • Deleted lifting history
  • Lost all logs with update
  • Weight limit restriction
Show 8 more
  • Reloads excessively
  • Wonky and now dead
  • Complicated and too much offered
  • Not intuitive for tracking
  • Buggy about dates and lifts
  • Cannot select other lifts
  • Only logs back squats
  • App copying content from clipboard

Requested features

7 requests
  • Allow editing of logs (date/time)
  • Manual entry for weight preferred over slider
  • Include different 1RM formulas (Epley, Brzycki)
  • Ability to create custom graphs
  • Fix weight limit restriction
Show 2 more
  • Allow logging of more than 1073 pounds
  • Update app

RM REP MAX

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

One Rep Max

Subscriptions2
  • 1RM Pro Monthly$2.991 Month
  • 1RM Pro Annual7 Days trial$19.991 Year
One-time1
  • 1RM Pro Lifetime$49.99
1 purchases

RM REP MAX

One-time1
  • Remove Ads$0.99

Questions

Is One Rep Max free?
One Rep Max is free to download, with in-app purchases available.
Is RM REP MAX free?
RM REP MAX is free to download, with in-app purchases available.
Do One Rep Max or RM REP MAX have ads?
Both One Rep Max and RM REP MAX show ads.
Which is updated more often, One Rep Max or RM REP MAX?
One Rep Max ships an update every 4 days, and RM REP MAX daily. Most recently, One Rep Max was updated on September 14, 2026 and RM REP MAX on September 10, 2026.

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