News for hackers. Stuff that matters.
Re:Chat app for use when your battery is less than 5% by eximius on Friday January 19, 2018 @08:03PM (#16191376)
Aw, I thought it would be some experimental Super Low Power Chat thing.
Re:Chat app for use when your battery is less than 5% by senatorobama on Saturday January 20, 2018 @12:21AM (#16192201)
Yep. I'm surprised phone companies don't do this. Like a console based chat that only needs the kernel when the 'nominal' battery has run out.
Re:Chat app for use when your battery is less than 5% by jimktrains2 on Saturday January 20, 2018 @12:37AM (#16192240)
I always thought a recovery image that could send and receive calls and sms would be awesome. No internet, not even 2g. Just phone and sms. Maybe some contacts (name / number tuple) that'd exist separate from the main systems contacts.
Re:Chat app for use when your battery is less than 5% by bdamm on Saturday January 20, 2018 @01:05AM (#16192305)
Having had my "Phone" crash due to software glitches, leaving me unable to dial 911, I 100% agree this would be a great boot-time switch.
Re:Chat app for use when your battery is less than 5% by jpl56 on Monday January 22, 2018 @08:49AM (#16204267)
I have this on my Android phone, it's called "Ultra STAMINA mode". Only GSM calls are allowed, no WLan, no data, selected apps only and a limited user interface. Did somebody measure the lifetime it adds to a phone with 5% battery left ?
Re:Chat app for use when your battery is less than 5% by foodstances on Friday January 19, 2018 @09:50PM (#16191785)
I'd love to know if this had problems getting through Apple's App Store review because they couldn't use it during testing.
Re:Chat app for use when your battery is less than 5% by tantalor on Friday January 19, 2018 @10:44PM (#16191935)
I'm sure testers can set whatever battery level is desired.
Re:Chat app for use when your battery is less than 5% by plurinshael on Saturday January 20, 2018 @01:00AM (#16192296)
"Set" the level of a battery?
Re:Chat app for use when your battery is less than 5% by chrisper on Saturday January 20, 2018 @01:51AM (#16192398)
Yes, in the emulator.
Re:Chat app for use when your battery is less than 5% by grzm on Saturday January 20, 2018 @01:01AM (#16192299)
Set the threshold that will enable the app.
Re:Chat app for use when your battery is less than 5% by exolymph on Friday January 19, 2018 @06:35PM (#16190947)
It's not an app that I'd use often enough to be worth the space on my phone, but I love the concept.
Re:Chat app for use when your battery is less than 5% by rtkwe on Friday January 19, 2018 @06:37PM (#16190958)
The apk is a paltry 18 MB. Hardly enough space to think about on most phones.
Re:Chat app for use when your battery is less than 5% by disconnected on Friday January 19, 2018 @07:28PM (#16191204)
> The apk is a paltry 18 MB.

It's somewhat disturbing that this is considered paltry.

Most DOS games managed to fit into a single diskette, and that includes not only the logic bits, but also assets: images, music, sound, etc. Remember that they didn't have the benefit of being able to borrow a massive number of assets and libraries from the OS. You wanted a button? You had to draw it yourself.

Also, my Linux kernel - which is infinitely more complex than this app - weights in at 7MB. Ok, sure, the modules are another 30MB, but that's only because I took the shotgun approach when I configured my kernel. I'm lazy, sue me.

Anyway, this app seems absolutely trivial and it barely has any assets at all. It's frankly embarrassing that it consumes so many resources for such little functionality.

Re:Chat app for use when your battery is less than 5% by epmaybe on Friday January 19, 2018 @08:00PM (#16191360)
> I'm lazy, sue me.
Re:Chat app for use when your battery is less than 5% by zpr on Friday January 19, 2018 @10:23PM (#16191880)
I think the developer was "lazy" too which is why he didn't spend days and weeks rewriting the wheel instead of using react.

As far as floppies, I think that's why we don't use them anymore.

Re:Chat app for use when your battery is less than 5% by GhostVII on Saturday January 20, 2018 @01:18PM (#16194547)
Writing a native app isn't much harder than using React though.
Re:Chat app for use when your battery is less than 5% by kmonsen on Friday January 19, 2018 @06:45PM (#16190999)
I feel this is what is wrong with software today, this app could have been much less than 1MB.
Re:Chat app for use when your battery is less than 5% by rullelito on Friday January 19, 2018 @07:01PM (#16191071)
It would be hard to justify putting more than a few hours into getting it down to 1 MB.
Re:Chat app for use when your battery is less than 5% by Retr0spectrum on Friday January 19, 2018 @07:09PM (#16191115)
10k users, each saving 17MB = 170GB total savings.

A 64GB iPhone 8 costs £699, and a 256GB iPhone 8 costs £849. That puts the cost of phone storage very roughly at £0.78/GB, so the 170GB space reduction saves the users £132 collectively. I pulled these numbers out of thin air for the most part, but you get the point.

It also improves user retention. Many people are running out of storage space, and routinely have to delete apps to free up space. An 18MB app will surely be deleted before a 1MB app.

Re:Chat app for use when your battery is less than 5% by larkeith on Friday January 19, 2018 @07:49PM (#16191322)
Saving £132 across 10k users does not sound worth the slightest amount of effort.
Re:Chat app for use when your battery is less than 5% by bdamm on Saturday January 20, 2018 @01:07AM (#16192307)
Especially when there is no one entity saving all that money.
Re:Chat app for use when your battery is less than 5% by minimaxir on Friday January 19, 2018 @07:29PM (#16191213)
A 18MB app is smaller than the vast majority of apps nowadays.
Re:Chat app for use when your battery is less than 5% by skykooler on Friday January 19, 2018 @11:32PM (#16192065)
Which is rather disappointing, considering the amount of space on phones hasn't increased much. Back in 2010 when 1 MB was a normal app size, a decent phone had 32 to 64 gb of storage. Now apps are twenty times as big, and a decent phone might have 64 to 128 gb. It's not scaling in sync.
Re:Chat app for use when your battery is less than 5% by rtkwe on Saturday January 20, 2018 @11:00AM (#16193771)
Apps have never really been the main space hog on phones though if you look at the numbers. Average app size is only ~40 MB and (the numbers are a bit sketchier here) the average person has 30-50 apps on their phone so even if we go to an extreme with multiple times the average apps you've only taken up 10-15% of a phones storage with apps.

Anecdotally the main perpetrator for wasted space is content; videos, pictures, and (in my case at 29GB) podcasts.

https://www.quora.com/How-many-apps-does-the-average-iPhone-...

Re:Chat app for use when your battery is less than 5% by kelnos on Friday January 19, 2018 @08:35PM (#16191517)
Those numbers only work if all users are constantly filling up the entirety of their phone's storage. Most people don't, and don't care about saving 17MB on their phone.

As someone introduced to computing in the 80s, I agree that code sizes are often insane based on what the apps actually do, but in the end, it's cheaper to just not care than to go through the effort to unnecessarily optimize.

Re:Chat app for use when your battery is less than 5% by rtkwe on Friday January 19, 2018 @07:28PM (#16191207)
So you're 'saving' each customer £.01 and to frame it another way that 64 GB iPhone has ~55-60GB usable space which is 3000 17MB apps. Sure a smaller app is laudable and devs have gotten loose with optimizing for space but the numbers just don't really make sense for a single dev on a kind of jokey app with a low lifespan to spend the time on.
Re:Chat app for use when your battery is less than 5% by losteric on Friday January 19, 2018 @07:31PM (#16191226)
How much is the author's time worth? How many hours would it take to get the application down to 1MB?

For an application that relies on many simultaneous users, it's better to be a large cheap app then an expensive optimized app.

Re:Chat app for use when your battery is less than 5% by yorby on Saturday January 20, 2018 @01:33AM (#16192357)
you can buy a 200GB microSD card for ~$70 or $0.35/GB ...
Re:Chat app for use when your battery is less than 5% by rtkwe on Saturday January 20, 2018 @10:37AM (#16193687)
There's quite a few flagship tier phones out there that sadly don't take microSD cards; Google Pixel/Nexus hasn't for a long time and neither has iPhone.
Re:Chat app for use when your battery is less than 5% by yorby on Saturday January 20, 2018 @11:01AM (#16193783)
I buy the cheap phones, they have more useful features. (although Google tries really hard to disable microSD card slots via software...)
Re:Chat app for use when your battery is less than 5% by paxy on Friday January 19, 2018 @07:05PM (#16191093)
If you use a phone without a super hi-res screen it will be much smaller.
Re:Chat app for use when your battery is less than 5% by lwansbrough on Friday January 19, 2018 @07:04PM (#16191090)
18MB is the range for React Native apps. I wouldn't be surprised to learn that this is one of those.
Re:Chat app for use when your battery is less than 5% by exolymph on Friday January 19, 2018 @08:58PM (#16191607)
You don't realize how close to the line I am in terms of storage space.
Re:Chat app for use when your battery is less than 5% by xianshou on Friday January 19, 2018 @07:07PM (#16191102)
Hilarious. You could even chat for as long as you wanted by plugging in a charger at 2% and taking it out at 4%.
Re:Chat app for use when your battery is less than 5% by AceJohnny2 on Friday January 19, 2018 @07:49PM (#16191323)
Reminds me of the character Marla Singer (or even the narrator) in Fight Club, who, though healthy, goes to cancer support groups for... reasons.

Seems disrespectful in a way :)

Re:Chat app for use when your battery is less than 5% by ComputerGuru on Friday January 19, 2018 @08:09PM (#16191400)
With crap entry-level Android phones, you could just play music or use navigation in the background while you run it off a charger and it'll never go above 2% even while it's plugged in :)
Re:Chat app for use when your battery is less than 5% by hrrsn on Friday January 19, 2018 @08:28PM (#16191485)
I remember when Pokemon Go was the rage, a friends OnePlus would need to be plugged in to a battery bank the entire time, even then it still drained slowly.
Re:Chat app for use when your battery is less than 5% by TomMarius on Saturday January 20, 2018 @03:19AM (#16192587)
That's a fault of the charger you're using, the phone has nothing to do with it.
Re:Chat app for use when your battery is less than 5% by ComputerGuru on Saturday January 20, 2018 @10:40AM (#16193699)
No, it's not. It's a Qualcomm QuickCharge 3.0 capable charger that exceeds all charge requirements and has no problem with other devices.
Re:Chat app for use when your battery is less than 5% by TomMarius on Saturday January 20, 2018 @12:22PM (#16194192)
Then maybe I misunderstood what you mean by entry level. Or maybe you own a model that is an exception. I deal with cheap (sub $200) chinese android phones a lot because we do development in React Native but it still has to run smoothly on these things, and I've never encountered these issues with phones newer than 2015.
Re:Chat app for use when your battery is less than 5% by notyourwork on Friday January 19, 2018 @07:45PM (#16191311)
Wonder if it boots you out if battery increases after you open it. “Sorry get your power out of here!”
Re:Chat app for use when your battery is less than 5% by tantalor on Friday January 19, 2018 @10:53PM (#16191967)
Clearly this needs to be tiered,

90%+ battery: losers, cowards, amateurs

50-90% battery: casual, basic

10-50% battery: mlg, nerds

5-10% battery: outcasts, dangerous

5%- battery: heretics, supplicants

Re:Chat app for use when your battery is less than 5% by jpeeler on Saturday January 20, 2018 @08:08AM (#16193201)
Isn't this promoting bad charging practices since modern lithium ion batteries function best when charged early and often? My understanding is that the extremely low charge of the battery reduces the longevity of a battery's health. The confusing part is the older battery technology nickel-cadmium had the exact opposite recommendation of charging only after the battery was completely discharged.
Re:Chat app for use when your battery is less than 5% by Retr0spectrum on Friday January 19, 2018 @07:12PM (#16191130)
I love the "Hooli" network operator name in the screenshot, a nice touch.
Re:Chat app for use when your battery is less than 5% by hackerman_2000 on Friday January 19, 2018 @07:05PM (#16191094)
Where's the source code?
Re:Chat app for use when your battery is less than 5% by djsumdog on Friday January 19, 2018 @07:44PM (#16191304)
Looks like it's closed source .. and $1. .. I mean .. I've paid more for art.
Re:Chat app for use when your battery is less than 5% by AdamJacobMuller on Friday January 19, 2018 @08:23PM (#16191469)
I don't get why this is $0.99 on the app store...
Re:Chat app for use when your battery is less than 5% by digi_owl on Friday January 19, 2018 @08:33PM (#16191508)
Tried checking the urls found in the Android store description, and one didn't resolve while another took me to a simple page bearing the name of the owner that contained a email link. Not really sure what to think.

Edit:

Ah, checked out what this IDFA Doclab was. And it seems to be some kind of experimental documentary project. So frankly this whole app reeks of being "performance art".

Re:Chat app for use when your battery is less than 5% by nikkwong on Friday January 19, 2018 @07:08PM (#16191110)
It's cute—what's the goal in creating it?
Re:Chat app for use when your battery is less than 5% by floatingatoll on Friday January 19, 2018 @07:12PM (#16191131)
Re:Chat app for use when your battery is less than 5% by minhoryang on Sunday January 21, 2018 @02:05AM (#16197172)
But my iPhone6 usually died at 30%! ... :(
Re:Chat app for use when your battery is less than 5% by fireismyflag on Friday January 19, 2018 @06:37PM (#16190957)
Love the domain. But the page isnt loading.
Re:Chat app for use when your battery is less than 5% by jdoliner on Friday January 19, 2018 @06:38PM (#16190961)
Server was at 3% battery when I loaded it... maybe it died?
Re:Chat app for use when your battery is less than 5% by iagooar on Friday January 19, 2018 @06:58PM (#16191053)
Server only runs on iPhones with < 5% battery.
Re:Chat app for use when your battery is less than 5% by rtkwe on Friday January 19, 2018 @06:38PM (#16190965)
Loaded just fine for me. You using a JS blocker or something maybe?
Re:Chat app for use when your battery is less than 5% by seangrant on Friday January 19, 2018 @09:02PM (#16191619)
Costs $1 when the same can be accomplished with a native web app. Seems like a quick cash grab rather than "art" or anything.
Re:Chat app for use when your battery is less than 5% by TomMarius on Saturday January 20, 2018 @03:22AM (#16192596)
What is so bad about supporting someone with 1 dollar? It's not that much...
Re:Chat app for use when your battery is less than 5% by kjullien on Saturday January 20, 2018 @07:13PM (#16196190)
You read the word WebAssembly somewhere didn't you.
Re:Chat app for use when your battery is less than 5% by philtar on Saturday January 20, 2018 @03:28AM (#16192609)
Native web app is an oxymoron.