I’ve been thinking about using Amphetamine to keep my Mac awake, but I’m unsure if it’s reliable and safe. I’d really appreciate any reviews or advice from people who’ve tried it, especially if you’ve noticed any issues or benefits. I want to make sure it won’t cause problems with my Mac’s performance or battery life.
Testing Out Amphetamine on Mac: My Unfiltered Thoughts
So, I’ve spent a good chunk of time fiddling with Amphetamine for macOS, that app some folks claim you “absolutely need” to keep your Mac awake. Here’s the deal: sometimes my Mac just goes to sleep like a narcoleptic cat when I really want it to stay up… streaming videos, running huge downloads, or showing off code at meetups. I figured I’d give Amphetamine a go since so many recommend it, but here’s everything I’ve learned, warts and all.
What’s the Deal with Amphetamine, Anyway?
Amphetamine’s this free little app you nab from the Mac App Store. It basically lets you overrule your Mac’s natural urge to nap—kind of like shoving a bottomless coffee in its face. Unlike the Apple “Energy Saver” controls (which, by the way, are buried in System Settings), Amphetamine is all about quick toggles and fine-grained controls.
You can set it to keep the computer alive for a set time, until a specific app closes, or forever (well, until you remember you left it on, RIP laptop battery). It sits chill in your menu bar, and clicking it gives you more options than you probably expected.
Getting Started: How I Set Up Amphetamine (Without Pulling My Hair Out)
Alright, this is for the folks who just want the steps, no fuss.
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Grab the App:
- Pop open the Mac App Store and search for “Amphetamine”.
- Download and install—the icon looks like a little pill.
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Locate the App:
- It lives in your Applications folder. Launch it. Boom, pill icon now chilling in your menu bar.
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Basic Use:
- Click the pill. You’ll see options like “Indefinitely” or for X minutes/hours.
- Need your Mac awake while you binge YouTube? Just choose “Indefinitely.”
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Advanced Stuff:
- Dive into Preferences (right-click the icon) to set up triggers. You can make rules like “keep awake whenever Final Cut Pro is running” or “only prevent sleep when a display is connected”.
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Turn It Off:
- Click the pill again and hit “End Current Session.” Voilà, your Mac can sleep again.
The Rant: Can’t Apple Just Add This Already?
Look, macOS should really have this built in and easily accessible. Digging through menus for Energy Saver? Bleh. Here’s the official Apple rundown on their sleep settings, but spoiler alert: it’s a few steps more than I’ve got patience for when the caffeine’s running out.
Also, sometimes macOS just decides to ignore the “never sleep” setting if it feels like it. Amphetamine’s been rock-steady for me, and I’ve never seen my screen fade out at the worst possible moment since installing it.
Quick Pros, Cons, and Random Observations
- What it nails: Simplicity, total control (for power users, too), it’s free, and you can set up complex triggers.
- What’s annoying: Occasionally I forget it’s running and wonder why my MacBook battery’s tanking. The icon is also tiny, so don’t lose track of it up there.
For the Skeptics: Is It Safe?
If you’re wary of rogue menu bar apps: Amphetamine’s been around for a while, and it doesn’t monkey with system files or try to upsell you on paid junk. You can check their official page for more details and privacy info. Feel free to skim the Wikipedia entry on comparisons of similar tools for alternatives. I haven’t noticed any weird behavior or crashes, but you can always nuke it from the Applications folder if it isn’t your jam.
TL;DR
Amphetamine = lightweight, smart, and the “stay awake” button Apple should’ve included a decade ago. Tons of customization if you want it, zero learning curve if you don’t. For grabs on the Mac App Store.
If you need more nerdy details, the Apple Support docs for managing power and sleep are at https://support.apple.com/en-us/HT202824 and general app privacy queries answered at their official website.
That’s it. Try it, don’t try it, but I’m not going back to those ancient Energy Saver menus unless Apple sneaks some big upgrade past us.
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Not gonna lie, Amphetamine is the kind of Mac app that has almost cult status, but just because everyone’s raving (looking at your deep dive, @mikeappsreviewer) doesn’t mean it’s flawless. I’ve used it for a couple years to keep my Mac awake during gnarly webdev deploys and Twitch streams that NEVER end. Yes, the menu bar thing is handy and much easier than Apple’s Energy Saver rabbit hole, I’ll give them that.
But—here’s the thing—sometimes it’s too good at what it does. I once ran a marathon of Zoom calls and left Amphetamine on “Indefinitely”… let’s just say, MacBook battery life? RIP. Processor fans sounded like a small jet. And if you use it for ages and forget, your Mac starts acting, well, grumpy—hotter, sometimes a tad laggy (hard to prove 100% it was Amphetamine, but, ya know).
Also, has anyone else randomly had it just… not respond? Like the icon is there, session’s active, and then—bam—the Mac still nods off anyway? Not all the time, but it’s not set-and-forget flawless. Maybe after some macOS update shenanigans.
Safety-wise, I’ve never seen anything sketchy on Activity Monitor or in Console logs—seems clean, doesn’t hoard system resources, and never seen it crash or install sneaky bloatware. There’s no ads or weird data collection nags (seriously, why isn’t every utility like this?). Just double-check app permissions when upgrading, cuz sometimes macOS privacy changes make settings wonky.
TL;DR: Super useful and mostly trouble-free; just remember you’re literally fighting your Mac’s built-in sleep instincts. Don’t turn it on and forget unless you wanna come back to a fried laptop or drained battery. If you want something lighter, there’s also Caffeine (the OG before it died off) or just setting “Prevent sleep when display is off” in System Settings, though not so customizable. YMMV but overall, solid little app with a couple personality quirks.
Amphetamine is the stuff of Mac legends, I swear. I’ve been using it years—mainly cuz my MacBook’s sleep settings are a pain to navigate and never do exactly what I want. Basically, it’s idiot-proof: click the little pill, choose “stay awake,” and boom, you’re golden till you remember to turn it back off (or your battery is dust). Super handy for keeping Zoom calls alive or when I’ve got giant uploads or renders going.
Here’s the catch: like @techchizkid mentioned, sometimes, for me, Amphetamine just stops working after a big macOS update. You’ll think your Mac is invincible against sleep, but nope, you walk away and come back to find it napping. Not often, but enough that it’s annoying. When it works, it REALLY works, almost too well—your fans crank up if you leave it on and forget, and your MacBook’s battery life will absolutely get smoked. I’d suggest only turning it on as needed, don’t leave it as a permanent “never sleep” crutch.
As for safety: never seen Ads, popups, spyware, or weird behavior. It’s solid, doesn’t bog down the CPU, and you can delete it with zero drama if you change your mind. In terms of reliability, it’s about 95% there, and I trust it more than most menu-bar toys, but always check after OS upgrades.
One minor disagreement w/ @mikeappsreviewer: Apple’s Energy Saver works in most cases if you just want the basics. It’s fiddly, but you’re not adding extra software. But Amphetamine is next-level with triggers—keeping specific apps awake or only when certain peripherals are plugged in, which is pretty clutch for power users.
If you want a super basic alternative, try KeepingYouAwake, but it’s even more barebones. For most people, Amphetamine is the go-to, just don’t be surprised if your Mac gets warm if you leave it running overnight on “indefinite.” Wouldn’t call it perfect, but it’s a classic for a reason.
I’ve run Amphetamine on my work iMac and my personal MacBook Pro for at least three years—call it a “veteran user” review. If you’re after reliability, it’s genuinely been robust (as long as you keep it updated), and I much prefer how customizable it is compared to whatever Energy Saver is called these days in macOS Ventura/Sonoma. Crashes? Rare. Weird behavior? Almost never, unless a macOS update breaks something temporarily, which some in this thread already mentioned.
But here’s a detail some skip: Sleep prevention can have side effects like your laptop heating up (fans spin, battery drains, etc.). Happens with Amphetamine, but that’s not on the app—that’s you forgetting to kill the session after that download finishes. And for those worried, Amphetamine’s permissions are minimal. I’ve checked with several privacy tools, and it’s not snooping on anything.
What impresses me most—compared to competitors like KeepingYouAwake or even Caffeine—is the degree of control. You can assign triggers based on running apps, network, drives, or even custom scripts. Geeky, but incredibly handy if you’re juggling multiple workflows.
Small headache: The icon is easy to lose track of if your Mac is drowning in menu extras. And, agree with others, sometimes with a new macOS version, Amphetamine’s behavior gets a little glitchy until the dev updates it. It’s not a set it and forget it solution—you have to be aware of it running, or you’ll roast your battery.
To sum up the Amphetamine pros:
- Highly customizable and free
- No strange background processes
- No ads, up-sells, or spyware
- Menu-bar convenience
Cons:
- Occasional glitches after OS updates
- Easy to accidentally leave running, draining battery
- Doesn’t solve thermal issues—just prevents sleep
Amphetamine is more advanced than KeepingYouAwake, and less barebones than Caffeine. The “trigger” feature is where it shines. If your only goal is basic “never sleep,” the built-in macOS options are fine (sometimes). But if you want on-the-fly control or app-based triggers, nothing beats it. Personally, I trust it for presentations, downloads, and long renders—just don’t let your laptop cook overnight.