One Rep Max: 1RM Calculator Apple

One Rep Max: 1RM Calculator

By: Charles Vanderhoff App
Strength Tracker & Gym PR Tool

Overview

Apple Apps Store
Rating:
4.50 ▲ 0.10
(175)
Version:
4.0.21
Last updated: 2026-06-28
Ranking
#123,053 ▼ 2,140
Overall

Features & Capabilities

One Rep Max: 1RM Calculator is a Chrome extension that helps serious lifters estimate max strength safely. It supports seven scientific formulas (Epley, Brzycki, Lombardi, Mayhew, McGlothin, O'Conner, Wathan), optional RPE integration, unlimited exercise tracking, and clear progress visuals.

Track any lift, view progress with charts and percentages, set goals, and monitor your strength journey over time. Designed for powerlifters, CrossFit athletes, Olympic weightlifting, and enthusiasts, with a science-based approach and safety guidance.

User Growth & Download Statistics

App Sports Analytics Data Education
By:
Charles Vanderhoff
Rating:
4.50
(175) 0.10
Version:
4.0.21 Last updated: 2026-06-28
Version code:
887399479
Creation date:
2014-12-30
Compatible devices:
Size:
47.52MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-07-20
Compare stats and ranking:

Ranking

# 123,053 ▼ 2,140

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Charles Vanderhoff
Apple Apps Store
https://apps.apple.com/us/app/one-rep-max-1rm-calculator/id950621710
Website:
http://vandersoft.co/one-rep-max-app/

User Reviews

Placing previously available features behind a paywall? Yeah, uninstalled.
by Je*****, 2026-05-24
It definitely does the job. Was 5 stars then it put the percentages/reps behind a pay wall.
by Co*****, 2026-05-14
View all user reviews ›

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