Pulley Mech Advantage
Rope & Rigging Calculator
About
Calculate the mechanical advantage and required effort for pulley systems instantly. Visualize rope paths and understand rigging configurations with color-coded indicators. Save unlimited scenarios for future reference.
What's New in Pulley Mech Advantage
1.1.0
June 16, 2026
Version 1.0 • Mechanical advantage and effort calculator: enter load weight and rope segment count for an instant MA ratio and required effort in kg • Live rope-path diagram that updates with each segment change, showing fixed and movable pulley positions • Color-coded effort indicator (green / orange / red) based on effort-to-load ratio • Eight reference pulley systems: Fixed, Movable, Block & Tackle 2:1/3:1/4:1, Compound, Gun Tackle, Luff Tackle — each with use-case notes and a diagram • Save and manage unlimited load scenarios with name, weight, system selection, and notes • Five pre-loaded seed scenarios across rescue, sailing, automotive, theatre, and home use • Fully offline — no account or internet connection required
MoreSubscriptions & In-App Purchases
Pulley Mech Advantage Yearly
All premium features, billed yearly. Cancel anytime.
Developer apps
FAQ
What is the mechanical advantage ratio in Pulley?
The mechanical advantage (MA) ratio in Pulley is calculated based on the load weight and the number of rope segments. It indicates how much force multiplication your pulley system provides. The app displays this ratio instantly upon entering your load details.
Does Pulley work offline?
Yes, Pulley is fully offline. No account, ads, or network access are required to use its features, making it ideal for use in the field or areas with no signal.
How does the color-coded effort indicator in Pulley work?
The color-coded effort indicator provides a quick visual assessment of your rig's efficiency. Green signifies effort under 25% of the load, orange between 25–50%, and red over 50%, helping you determine if your setup is optimal at a glance.
What pulley systems are included in Pulley?
Pulley includes eight classic pulley reference systems: Fixed, Movable, Block & Tackle (2:1, 3:1, 4:1), Compound, Gun Tackle, and Luff Tackle. Each system comes with its MA ratio, rope segment count, use-case notes, and a diagram.
Can I save my pulley system calculations in Pulley?
Yes, Pulley allows you to save unlimited load scenarios. You can name each lift, set the weight, choose the system, add notes, and store the calculated effort for easy retrieval.
What are the subscription options for Pulley Mech Advantage Premium?
Pulley Mech Advantage Premium offers weekly ($9.99/week) and yearly ($49.99/year) subscription options. The yearly plan includes a 3-day free trial. Subscriptions auto-renew unless canceled at least 24 hours before the current period ends.
What devices does Pulley support?
Pulley currently supports iPhones. The app is rated for ages 4 and up.
How often is Pulley updated?
Pulley was last updated on June 16, 2026, with version 1.1.0. This indicates a recent update, suggesting ongoing development and support.
