4 small code changes that cut our LLM bill

Short answer: no, not really, and constantly swiping them away can actually make things slightly worse.

This is one of the most stubborn phone myths out there. Here's what's actually going on.

Modern iPhones and Androids don't leave closed apps "running" in the background the way a PC does. When you switch away, the app gets mostly frozen. It sits in memory doing almost nothing and using almost no battery. Leaving it there is basically free.

Now when you force-close it and open it again later, the phone has to reload the whole thing from storage. That cold start uses more CPU and more battery than if you'd just left it frozen. So the habit of clearing all your apps every hour is quietly costing you a little, not saving you anything.

So what actually drains battery in the background? Not the frozen apps. It's specific behaviors: location tracking, constant syncing, push-heavy apps, and the occasional buggy app misbehaving.

What I'd do instead of mass-swiping:

• Go to Settings > Battery and look at what's actually using power. Your phone spells it out.
• For any app near the top that doesn't need to run constantly, turn off its Background App Refresh or location access.
• Only force-close an app when it's genuinely acting up (frozen, overheating the phone, draining fast). That's the one time closing actually helps.

Short version: stop clearing your apps out of habit. It doesn't help and slightly hurts. Just fix the one or two real culprits in your battery settings instead.