# Dynam Labs Bolt FAQ

Source: https://dynamlabs.com/bolt#faq. Each question links to its anchor on the product page.

## What is Bolt?

Bolt is the calibration and diagnostics app for VCU+. It covers live scope, 3D torque maps, calibration diff reports, one-click firmware updates, and a Lua plugin editor. Native builds run on Mac, Windows, and Linux.

Link: https://dynamlabs.com/bolt#what-is-bolt

## Which operating systems does Bolt run on?

Bolt runs on Windows, macOS, and Linux. The feature set is the same on each.

Link: https://dynamlabs.com/bolt#which-operating-systems

## Is Bolt free?

Yes. Bolt is free to use with any VCU+.

Link: https://dynamlabs.com/bolt#is-bolt-free

## How does Bolt tune a VCU+?

Bolt tunes drivetrain, I/O, and battery parameters on a connected VCU+, including 3D torque maps. It also shows a live scope, records logs you can export to CSV, diffs calibration changes, flashes firmware, and edits Lua plugins.

Link: https://dynamlabs.com/bolt#how-does-bolt-tune