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Report updated Apr 19, 2026

Overview · Full Intel report in progress

1RM Calculator - One Rep Max is an established health & fitness app that is free with in-app purchases. With a 4.7/5 rating from 744 reviews, it shows polarized user reception.

What is 1RM Calculator - One Rep Max?

1RM Calculator is a fitness utility designed to estimate one-rep maximums based on user-inputted weight and repetition data. It allows strength athletes to compare different rep schemes and track progress over time. The app is notable for its simple interface and mathematical approach to strength gauging.

Current Momentum

v4.5 · 14mo ago

Zombie

Last updated 430d ago. 5 versions tracked.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Health & Fitness

No ranking data

Health FitnessHealth And FitnessGrossing

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

What Are The Key Features?

1RM EstimationStandard

Calculates estimated one-rep maximums based on weight and repetition inputs.

Progress TrackingStandard

Allows users to save lifts and view historical data through lists and charts.

Pro Version FeaturesStandard

Offers an ad-free experience, historical tracking, and access to additional calculation formulas.

How much does it cost?

Freemium

Who Built It?

David Bai app icon 1
David Bai app icon 2
David Bai app icon 3
David Bai app icon 4

David Bai

★★★★★
(420)

Providing specialized strength training tools for weightlifters. Automating complex lifting programs to replace manual tracking methods.

Portfolio

4

Apps

Paid 3
Health & Fitness100%

What other apps does David Bai make?

Hatch Squat Program

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Health & Fitness·★4.7(221)
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Smolov Squat Program

Smolov Squat Program

Health & Fitness·★4.9(74)
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Random WOD Generator

Random WOD Generator

Health & Fitness·★4.8(125)
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Explore the full David Bai report

Portfolio breakdown, audience, momentum, and every app published by David Bai.

Go deeper

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

View the full user-sentiment analysis

Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.

Go deeper

Analysis in progress, available soon

What is the competitive landscape for 1RM Calculator - One Rep Max?

Where is it available?

Localized markets (1)

United States

How's The Health & Fitness Market?

Market outlook for this category

Available very soon

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for 1RM Calculator - One Rep Max

Key Takeaways

While the app provides useful strength estimation tools, recent user feedback indicates significant technical issues regarding the activation of Pro version features.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by 1RM Calculator - One Rep Max, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “1RM Calculator - One Rep Max Intelligence Report.” Updated Apr 19, 2026. https://marlvel.ai/apps/1rm-calculator-one-rep-max

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