# BarbellCalc: Plate & 1RM Math — Load the bar, not your brain

> Load the bar, not your brain (iPhone/iPad app by 瑞华 张.)

- Source: https://appshunter.io/ios/app/barbellcalc-plate-and-1rm-math/id6811332461 (this page in markdown: same URL + `.md`)
- Developer: [瑞华 张](https://appshunter.io/developer/1608130007)
- Category: Health & Fitness
- Price: $4.99
- Age rating: 4+
- Requires: iOS 16.6 · 7 MB
- Languages: American English
- Released: 2026-09-24
- Data updated: 2026-10-03

## What is BarbellCalc?

Tired of doing math between heavy sets? Stop calculating in your head while exhausted. 

BarbellCalc is the cleanest, fastest, and most precise barbell plate and 1RM calculator designed specifically for powerlifters, weightlifters, and gym enthusiasts.

FEATURES YOU'LL LOVE:

1. VISUAL BARBELL LOADING
• Instant visual representation of your barbell with official IWF color-coded plates.
• Accurate breakdown of exactly what plates to load on each side.
• Tap any number to type your custom target weight directly.

2. DYNAMIC ISLAND & LIVE ACTIVITIES
• Pin your current working weight to your Lock Screen or Dynamic Island.
• Glance at your phone on the gym floor without unlocking it.

3. 1RM & TRAINING PERCENTAGES
• Calculate your true One Rep Max using industry-standard Epley and Brzycki formulas.
• Instant training percentage table (50% to 95%) with one-tap loading back to the bar.

4. AUTOMATIC WARM-UP LADDER
• Smart progressive warm-up sets generated automatically from empty bar to your work set.
• Interactive checkmarks and integrated rest timer.

5. CUSTOM GYM INVENTORY
• Supports both LBS and KGS.
• Toggle off plates your gym doesn't have (like 35 lb plates or micro fractional plates).
• Choose from Standard Olympic bars (45lb/20kg), Women's bars (35lb/15kg), Trap bars (55lb), or custom bar weights.

ZERO ADS. ZERO SUBSCRIPTIONS. ZERO CLUTTER.
Pay once, own forever. Build for the lifter, by a lifter.

## Is BarbellCalc safe?

Not enough ratings yet to assess BarbellCalc.

## Is BarbellCalc legit?

BarbellCalc: Plate & 1RM Math appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for BarbellCalc is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-24

No release notes.

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All apps by 瑞华 张: https://appshunter.io/developer/1608130007

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-03.*