My 1 Rep Max

Name: My 1 Rep Max
Rating: 4.4 (116 reviews)
Author: James T. Constant

By: James T. Constant

1 Rep Max Calculator

Features & Capabilities

My 1 Rep Max is a calculator and log book for weight training. Use popular 1RM formulas to estimate your maximum lift and log your workouts to visualize progress over time.

With My 1 Rep Max Premium you can create custom lifts and perform calculations with more than 10 repetitions. A safety note explains that 1RM estimates can vary and to prioritize safety, including having a spotter. The app will not ask for ratings, though you can rate it from Settings if you wish.

User Growth & Download Statistics

App Sports Education Analytics

By:

James T. Constant

Rating:

4.40

(116)

Version:

2.1.12 Last updated: 2024-12-06

Version code:

870935494

Creation date:

2018-02-17

Compatible devices:

Size:

7.19MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 144,168 ▼ 198

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:

James T. Constant

Apple Apps Store

https://apps.apple.com/us/app/my-1-rep-max/id1317637753

Website:

https://mclovinsoftware.wordpress.com

User Reviews

Overall, users praise the app for its simplicity and reliable workout logging, with some noting accurate weight tracking. The major drawbacks are stability issues (crashes/glitches) and a limited lifts library that doesn't support user-defined lifts, even in premium.

Pros

Simplicity and ease of use.
Reliable workout logging/history (complete workout storage).
Accurate weight tracking.

Cons

Crashes and glitches affecting usability.
Limited lift library; can't add user-defined lifts (even with premium).

Recent reviews

I love this app but it is missing something? The android version of this app is much better! Wish it felt like the android version!!!

by D.*****, 2026-03-02

The simplicity is the best thing about the app. The only critical feature missing is that when you save your reps, i wish you could click on a saved entry so that it gets loaded to the main screen. Why? I use this for several exercises. I have each of my reps saved. Every time I use it I need to recreate the reps rather than just work off my saved entries.

by Lu*****, 2026-01-16

Updated all my apps and software on iPhone and this app is no longer working. Hundreds of data points that I cannot access. Would give 5 stars if this was fixed. About 2 weeks in waiting for response from App Store support.