Compare Mac keep-awake apps
Let It Brew vs Caffeine vs Amphetamine
Keep your Mac awake while your agents are working—then let it sleep when the work stops. See how Let It Brew compares with Caffeine and Amphetamine.
Feature comparison
Swipe to compare
Recommended
| Feature | Let It Brew | Caffeine | Amphetamine |
|---|---|---|---|
| Best for | Claude Code and Codex work that should keep your Mac awake automatically | A simple manual keep-awake switch | Timers, schedules, and triggers |
| Understands active agent work | Yes — Claude Code and Codex | No | No |
| Releases when agent work stops | Yes — automatically | No — manual switch or timer | No — ends with its session or trigger |
| Closed lid — with charger | Yes | No | Yes |
| Closed lid — without charger | Yes | No | No |
| Agent-specific integration | Claude Code and Codex | None | None |
The short answer
Which one should you choose?
- Choose Let It Brew when supported local agent work should automatically hold and release the Mac's awake state.
- Choose Caffeine for the simplest manual toggle.
- Choose Amphetamine for flexible general-purpose timers, sessions, and triggers.
Ready when you are
Stop watching the laptop. Let it brew.
Let It Brew keeps your Mac awake while your agents are working, then lets it sleep when the work stops.
