QuantowGear vs GearCalc Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QuantowGear
Control your QuantowGear RC car with this application. It allows you to manage the functions and movements of your remote-controlled vehicle.
- RC car control
- Device management
- Remote operation
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Use this app to control your QuantowGear RC car!
GearCalc Pro
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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.
Screenshots
Verdict
The clearest difference is ads: QuantowGear at none against GearCalc Pro's shown. QuantowGear also leads on iOS requirement (14.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
QuantowGear ships an update every 5 months, GearCalc Pro every 3 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.
| Parameter | QuantowGear | GearCalc Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Quantow, Inc. | Sui Fai Law |
In-app purchases
QuantowGear
No in-app purchases
GearCalc Pro
No in-app purchases
Questions
Is QuantowGear free?
Is GearCalc Pro free?
Do QuantowGear or GearCalc Pro have ads?
Which is updated more often, QuantowGear or GearCalc Pro?
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