# GearCalc Pro

> Gear Ratio Calc & 3D Sim

Canonical page: [https://chrome-stats.com/d/id6767600060](https://chrome-stats.com/d/id6767600060)

## Overview

- **ID:** `id6767600060`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Sui Fai Law
- **Category:** Utilities
- **Version:** 1.1
- **Last updated:** 2026-08-20
- **First published:** 2026-05-08
- **Size:** 7.67 MB
- **Data as of:** 2026-09-25
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/gearcalc-pro/id6767600060)
- **Website:** [https://www.neuralworkshk.com](https://www.neuralworkshk.com/)
- **Privacy policy:** [https://www.neuralworkshk.com/privacy.html](https://www.neuralworkshk.com/privacy.html)

## Description

GearCalc Pro is the most professional gear ratio calculator and 3D simulator for hobbyists, makers, and engineers working with motorized projects.

WHAT IT DOES
- Calculate exact gear ratios for any motor + target speed/torque
- Auto-suggest optimal gear teeth combinations across 1-6 stages
- Real-time 3D visualization of compound gear trains with proper meshing
- Simulate gear rotation at adjustable input RPM with live output display
- Battery life estimation across 11 battery types
- Reverse motor finder - given target RPM/torque, find the best motor

MOTOR LIBRARY (18 models)
- Ultra Micro: N10
- Micro: N20, N30, GA12-N20 gearmotor
- Small: TT, DC 130/FA-130, DC 180, DC 260, DC 280
- Medium: DC 380, RS-540, RS-545, RS-550
- Large: RS-775, RS-895
- BLDC: 2208 drone motor
- Stepper: NEMA 14, NEMA 17, NEMA 23
- Servo: SG90, MG996R
- Custom motor input - add your own specs

ENGINEERING FEATURES
- Standard gear theory: D = teeth x module
- Per-stage efficiency (Spur, Helical, Worm, Bevel, Planetary)
- Gear pair recommendations from 21 standard tooth counts (8T to 120T)
- Worm gear support with 1/2/4-start configurations
- Standard ISO modules (0.3 to 4.0)
- Motor dimension diagrams with shaft, bore, and mounting specs
- Save/load configurations

3D VISUALIZATION
- Real PBR-rendered gears with metallic shading
- Color-coded stage badges
- Auto-fit camera, free 3D rotation
- Reset view to recenter
- Start/stop animation with physics-correct rotation

8 LANGUAGES
Traditional Chinese, English, Simplified Chinese, Japanese, Korean, Spanish, French, German.

EXPORT
- Generate spec sheet image
- Copy text spec to clipboard
- Share via standard iOS share sheet

Whether you're designing a robot, toy, RC car, 3D printer, or CNC machine, GearCalc Pro gives you the math, the visualization, and the engineering data in one beautifully designed app.

## Rankings

- #1,812,213 — Overall

## Similar extensions and apps

- [Gear Formula: Calc & Simulator](https://chrome-stats.com/d/id6786232651)
- [Gear Calculator Pro](https://chrome-stats.com/d/id6463792360) — 5.00 / 5
- [Gear Simulation & Calculation](https://chrome-stats.com/d/id1618701429) — 4.30 / 5
- [Gear Ratio Calculator & RPM](https://chrome-stats.com/d/id6771942447)
- [Gear Ratio Speed Calc](https://chrome-stats.com/d/id6761039376)
- [DrivetrainPro](https://chrome-stats.com/d/id6748659681)
- [RC Pit Calc Pro](https://chrome-stats.com/d/id1562268871) — 4.40 / 5
- [Gear Lab Pro](https://chrome-stats.com/d/id1180676834)
- [Gear Ratio Calculator Lite](https://chrome-stats.com/d/id580455357) — 2.00 / 5
- [GearLab](https://chrome-stats.com/d/id6769460413)
- [Gear Ratio Calculator 2](https://chrome-stats.com/d/id6449957065) — 1.00 / 5
- [Gear Lab](https://chrome-stats.com/d/id1013375198) — 2.50 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6767600060)