Choose Amphetamine for a keep-awake requirement
Amphetamine’s App Store description presents a direct keep-awake switch, timed sessions, and triggers for conditions such as an app, an external display, a device, or a network state. It also describes options to keep a MacBook awake with the lid closed. That makes it a good fit when the goal is explicitly to prevent sleep for a known task.
Keeping a Mac awake can increase energy use, so it is not a remedy for unexplained sleep drain. If the requirement is a long download, presentation, or external-display workflow, a keep-awake tool may be the straightforward answer.
Choose WattGuard for an evidence-led sleep question
WattGuard organizes sleep, normal wake, dark wake, charge change, reported wake reasons, and completed blockers from macOS power history. It groups process families to help prioritize a test and compares a follow-up session with prior ones. It does not turn a wake reason into exact battery accounting or repair macOS behavior.
Its automation conditions can use sleep, a schedule, power source, or battery thresholds and can perform selected actions while the app is running. It does not promise hardware wake scheduling or provide a general keep-awake replacement.
Use them according to the outcome you need
Use Amphetamine when you want to prevent sleep. Use WattGuard when you want to understand why a Mac slept poorly or lost charge, then test a narrow change. They can be complementary, but avoid running conflicting rules while diagnosing a sleep problem: a keep-awake session can make a sleep comparison meaningless.