GymCalc Max – 1RM
Lift math made simple
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Get accurate 1RM, plate math, warmups, and kg/lb conversions in one sleek app. Plan faster, lift smarter, and stay consistent—every session.
Lift smarter with precise strength tools built for barbell training. Calculate 1RM, plan plates, and generate warmups in seconds—no clutter, just results.
Highlights
Accurate 1RM: Multiple formulas for reliable estimates
Plate math: Auto-calculate loading in kg/lb, fast copy for the platform
Warmups: Build smooth ramp-up sets based on your target
Secondary sets: Quick projections for common rep ranges
Dual units: Instant kg ↔ lb switching with saved preferences
Sleek UI: Minimal, focused design for quick entries
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bar weight now saves your custom value — no more resetting to 20 kg / 45 lbs
Improved plate-friendly rounding accuracy
More precise plate calculations
Consistent number formatting across the converter
General bug fixes and performance improvements
The developer, Kosshii Apps, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Pieter Roelandt
- Size
- 2.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.2 or later.
- iPhone
Requires iOS 18.2 or later. - Mac
Requires macOS 15.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.2 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 KosshiiApps