# Amphetamine

A free keep-awake utility — a one-click toggle or automatic Triggers stop your Mac (and optionally its display) from sleeping, with power-user depth most caffeine-style apps skip.

- **Category:** [Utilities](https://notchlist.vercel.app/category/utilities/)
- **Price:** Free
- **Open source:** no
- **Official site:** https://apps.apple.com/us/app/amphetamine/id937984704
- **Available via:** Mac App Store
- **Requirements:** macOS 10.13 or later, per the Mac App Store listing.
- **Maker:** William Gustafson

## Kitsmith's take

The best-known keep-awake utility on the Mac App Store, and free where most competitors in this category charge a few dollars — built and still actively maintained by a single developer, William Gustafson, since 2014, and featured editorially by Apple itself (“Customize Your Mac’s Sleep Settings — Amphetamine gives you granular control”). Beyond the simple on/off menu bar toggle, Triggers can start a keep-awake session automatically on conditions like a specific app launching, an external display connecting, or battery staying above a threshold — more configuration than most people need, but there for the people who do. The developer also maintains a public GitHub repo of extra fixes for edge cases Apple’s own sandboxing makes awkward, like Closed-Display Mode losing state on Apple Silicon Macs after a power change.

## Features

- **Triggers:** Start a keep-awake session automatically on conditions like an app launching, a display connecting, or battery level, rather than only a manual toggle.
- **Keeps the display awake too, optionally:** Choose whether Amphetamine keeps just the Mac awake or the display as well, per session.
- **Actively maintained since 2014:** Regular updates from a single named developer, plus a public GitHub repo of extra fixes for Apple-sandboxing edge cases like Closed-Display Mode on Apple Silicon.

## FAQ

**Is Amphetamine free?**

Yes — free with no in-app purchases or subscription, per its Mac App Store listing.

**Who makes Amphetamine?**

William Gustafson, an independent developer who has maintained the app since 2014.

**Does Amphetamine keep the display on too, or just the Mac?**

Both are options — a session can keep just the Mac awake, or the Mac and its display, depending on how you start it.


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Hand-verified listing on Kitsmith: https://notchlist.vercel.app/apps/amphetamine/