Features & Capabilities

The 1 Rep Max Calculator and Log Chrome extension is an essential tool for weight lifters, bodybuilders, and powerlifters eager to monitor and improve their strength. It calculates your maximum lift for one repetition based on your previous weight and reps input, supporting various recognized formulas like Epley, Brzycki, Lombardi, and more.

Beyond calculation, this extension allows you to log your top 1 rep max records across numerous exercises, track body weight changes, and set fitness goals. The integrated plate loader calculator simplifies barbell loading by letting you select available weights and bar types. Whether optimizing training plans or assessing Wilks Scores, this extension is your comprehensive strength-tracking companion. Please note, this version is exclusive to Chrome, with a light version available for iOS and web users at the developer's site.

User Growth & Download Statistics

App
By:
Code Gardener LLC
Downloads:
496,904 429
Rating:
4.83
(5,952)
13 new ratings
Version:
7.7.0 Last updated: 2026-06-08
Version code:
53
Creation date:
2011-03-18
Publisher country:
US US
Permissions:
  • com.google.android.gms.permission.AD_ID Moderate risk
  • android.permission.FOREGROUND_SERVICE Low risk
  • android.permission.INTERNET Low risk
  • android.permission.WAKE_LOCK Low risk
  • com.android.vending.BILLING Low risk
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE Low risk
  • android.permission.ACCESS_NETWORK_STATE Safe
  • com.DBomb.OneRepMax.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Size:
4.97MB
Email:
Co*****@gmail.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Google Play Store
Data ingested on:
2026-06-09
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.
Developed by:
Code Gardener LLC
Google Play Store
https://play.google.com/store/apps/details?id=com.DBomb.OneRepMax
Email:
Co*****@gmail.com
Website:
https://www.codegardenerllc.com

User Reviews

Users praise the app for its simple, clean interface and reliable tracking of strength progress. It delivers quick 1RM and rep-max estimates with useful percentage calculations, making it a go-to tool for years. Ads are the main recurring complaint, and some users warn that projections aren’t gospel at high weights. Overall, it’s a fast, straightforward tool for planning workouts and monitoring gains.
Pros
  • Simple, clean, and easy to use interface
  • Reliable for tracking workouts and strength progress over years
  • Provides quick, practical 1RM and rep-max estimates with helpful percentages
  • Consistently performs well and serves as a go-to strength-tracking tool
  • Helps with goal setting and planning workouts with clear calculations
Cons
  • Ads disrupt usability and can make the app feel unusable
  • 1RM projections can be unreliable at higher weights; treat estimates with caution (not gospel)
Recent reviews
Timers are problematic when u don't use same break length for every set, have to manually enter for every workout and from workout to workout
by Fr*****, 2026-05-18

this app makes checking 1RM equivalents & percentages easy
by Do*****, 2026-03-17

💪🏻
by ze*****, 2026-02-24
View all user reviews ›

Best 1 Rep Max Calculator and Log Alternatives

Here are some Android apps that are similar to 1 Rep Max Calculator and Log: