Latest version is absolutely decimating my battery

I don’t know what’s up with the app lately but I literally can’t leave my phone unplugged overnight because it’ll be dead by morning. I’m running the latest version of everything on an iPhone 15 Pro Max. I’ve been using Arc for years and I’ve never encountered battery drain like this.


Hi @rolandsmash!

I’m not sure why that would be happening. Nothing’s changed recently in Arc’s underlying recording engine that could plausibly cause that.

There is however a new option in Arc’s Settings → Privacy view, which allows you to toggle on the annoying iOS status bar / Dynamic Island blue “using location” indicator. When that is toggled on, Arc can then use more energy efficient location recording settings, which might help solve the problem you’re seeing overnight.

Aside: That new option is … super weird, on Apple’s part. A while back they made the decision to start terminating apps that make use of the most optimal and efficient all-day location recording settings, unless that app opted in to showing the explicit status bar / Dynamic Island location indicator. It really makes no sense. But it is what it is, so there’s an option now for it in Arc :man_shrugging:t2: Worth a try!

I have that status bar thingy enabled and the app is still draining my battery like crazy. :sob: I love this app too much to stop using it but I wish I knew what Apple changed behind the scenes to create this situation.

I would love to know too.

The change I made to show the blue status bar thing got rid of an inefficiency that Apple’s silly rule brought in, but it doesn’t seem to have solved the core of the problem.

My main phone (iPhone 13 Pro) is also showing considerably higher battery drain when in sleep mode than it used to, and nothing in Arc has changed enough to cause that (that I’m aware of or can find in testing).

Meanwhile my iPhone 11 Pro is doing just fine, lasting for 24+ hours on a single charge.

At this point I’m tempted to file a bug report with Apple. But that step is almost always entirely useless, given that Apple bug reports are black holes, getting little to no feedback from Apple, and no indication that anything is being done or even having the problem genuinely acknowledged.

And that bug report would have to carefully quantify it all, providing exacting test cases, otherwise they’d dismiss it immediately without consideration. But this is a problem that’s inconsistent, happens over long spans of time, has no reliable test cases, etc.

Well, I’m going to keep doing more testing. I’ll either find something helpful, or collate enough evidence to submit some kind of bug report to Apple. (Then probably wait weeks or months for them to not reply and for nothing to be done).

A frustrating problem!

It does feel very random. There are days when I’ve been out a lot, lots of different locations logged in the background, and Arc’s battery usage feels completely normal/nominal. Then there are days where my iPhone has just been sitting on a table somewhere most of the day, unused, and battery usage will be through-the-roof.

iOS 17 has been a mixed bag like that. I remember when it was in public beta, Apple randomly broke the Mail app’s ability to intelligently suggest folders when filing emails. There was never any official documentation that this feature became nonfunctional. It simply stopped working and was quietly removed altogether when iOS 17 was officially released. (It continued to work in Sonoma, which was the only indication that the feature hadn’t been discontinued.) After a couple of iOS maintenance releases, it randomly returned and has been working normally ever since, all without a word of acknowledgement from Apple.

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Yeah, from the developer perspective that’s the hardest part. 90% of changes (and 99% of bugs) go undocumented and unacknowledged, and there’s no viable direct (or even indirect) line of communication to the relevant Apple teams to confirm, test, or debug. We’re simply left in the dark, with no credible path to resolution of problems on Apple’s side.

Yeah my day to day use of Arc has continued to feel fairly normal on my main phone. Although battery life is going down marginally faster, but the phone is getting older (battery health at 80% now). But then there’ll be times like the other night where I didn’t put the phone on the charger properly, and woke up in the morning to 5% battery, when for that duration of time it should’ve been 50% or more.

There was nothing suspicious in the recorded data, and my energy use profiling of the app the other month when I found that blue status bar thing didn’t show up any other potential pain points.

Hopefully I’ll find some clues during my testing this month. It would be really good to get this one solved.

An update on this: I’m hopeful that Arc 3.16 which went live yesterday should improve the battery life situation. I’m seeing some potentially promising results on my main phone so far.

Unfortunately I have recently updated Arc to 3.16.0 and it was way worse than before.

For example today Arc used 36% of battery:

A week ago using the previous version of Arc, doing the same commute and same things during the day, Arc only used 14% of battery:

It even used less battery than the browsers.

@trackerminerfs At this stage I think iOS’s Battery view is just broken and can’t be trusted at all.

I’ve been getting longer battery life since recent changes in Arc, with noticeably less battery drain, but the iOS Settings Battery view is producing essentially random results each day, with some days showing Arc and Mini using essentially no battery at all while other days it’ll have them at 30-50%!

Then this morning I saw this:

And this:

Which is undeniably nonsense and completely broken. Yesterday I spent over an hour on Threads, but it’s listed down the bottom with no percentage at all. Except just now it jumped up to third position, after opening the Battery view again a few minutes later :man_shrugging:t2:

But the most damning thing is This & That being listed down the bottom with no energy use, and 3 minutes screen time, except that I spent several hours working on it yesterday, with it consuming so much energy during those hours that the phone was in serious thermal state.

At this stage it’s clearly just fake data. I don’t know what’s going on, but it’s unable information.

I think we’re back to just having to observe battery percentage remaining at specific times during the day, and gauging battery life by hours since last charge, while ignoring the Settings Battery view altogether.

I’ve always hated the Settings Battery view because it’s misleading, even when correct. But right now it’s, without exaggeration, just pure fiction. (I’m on iOS 17.3.1).

Oh, Instagram is also listed down the bottom with no energy use, and 10 minutes screen time. Except that I use Instagram an hour or more every day, due to it being my main messaging app.

Yeah, I don’t know what’s going on, but at least in iOS 17.3.1 the Battery view appears to be entirely broken.