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It's required because your phone is where your messages are stored. Whatsapp don't retain messages/media after they've been delivered to your phone, which is a

by ddeck 10y ago

It's required because your phone is where your messages are stored. Whatsapp don't retain messages/media after they've been delivered to your phone, which is a compelling privacy feature for many. It's also what allows them to serve such an enormous user base with limited hardware. Their technology stack (FreeBSD/Erlang) is pretty interesting, more info here: 2014 talks by Rick Reed: https://www.youtube.com/watch?v=c12cYAUTXXs https://www.youtube.com/watch?v=c12cYAUTXXs https://www.youtube.com/watch?v=TneLO5TdW_M https://www.youtube.com/watch?v=TneLO5TdW_M Slides: http://www.erlang-factory.com/static/upload/media/1394350183453526efsf2014whatsappscaling.pdf http://www.erlang-factory.com/static/upload/media/1394350183... There's likely no technical reason why you couldn't use a pc instead of a phone for users that want to use the pc as the primary client (with the phone optionally accessing the DB on the pc in the same way that the desktop client does for the phone). Perhaps they've decided that this is a small and declining market. Edit: Slides for second talk http://www.slideshare.net/iXsystems/rick-reed-600-m-unsuspecting-freebsd-users http://www.slideshare.net/iXsystems/rick-reed-600-m-unsuspec... 440k connections/sec, 1.1 million msgs/sec, 1 billion images/day, and that was in 2014...

uola 10y ago
"Perhaps they've decided that this is a small and declining market." For consumers (and facebook is a consumer company) it's all about who owns mobile (and can also compete with facebook). They want desktop to just be enough of a feature to be more appealing than other platforms, but not enough that it detracts from mobile.
Freak_NL 10y ago
> There's likely no technical reason why you couldn't use a pc instead of a phone […] Any personal computer built in the last five years can do anything a smartphone or tablet can in terms of processing power and connectivity. A smartphone is a computer with hardware that enables it to use cell phone networks and make calls. My inner cynic strongly suspects that Facebook and other similar corporations really like the control they have on the overall user experience on the two major mobile operating systems; i.e., eyeballs on a smartphone or tablet are worth more than those on a general purpose computing device. Too much freedom on a personal computer; with browsers that feature all kind of privacy enhancing add-ons such as ad-blockers and tracker-blockers. Much harder to monetize.
- kome 10y ago
  You are totally right! That's the obvious answer. On desktop you have too much freedom.
  - rhaps0dy 10y ago
    I'm going to assume this is sarcasm and upvote.
executesorder66 10y ago
> It's required because your phone is where your messages are stored. So are you saying that a desktop PC's hard drive can't handle storage of some text messages but a phone can?
- xomateix 10y ago
  Of course, he is not saying that, he is just explaining how whatsapp is actually storing the messages.
- yxlx 10y ago
  No, he's saying that in order for the messages to be available, they have to be stored locally and since most people need access to the messages from their phones, it makes sense to do it this way to ensure that all messages are stored on the phone, instead of users ending up with some messages on their phones and some on their PCs.
Longhanks 10y ago
Neither does iMessage store messages on servers, and yet I receive iMessages on every device I signed on.
- kccqzy 10y ago
  But you can't retrieve historical iMessages on a new device.
  - hudell 10y ago
    I'm not really asking for that feature. If I could send and receive messages on the computer without having to open the smartphone app every five minutes for it to restore the connection, I would be happy already;

by ddeck 10y ago

uola 10y ago

"Perhaps they've decided that this is a small and declining market." For consumers (and facebook is a consumer company) it's all about who owns mobile (and can also compete with facebook). They want desktop to just be enough of a feature to be more appealing than other platforms, but not enough that it detracts from mobile.

Freak_NL 10y ago

> There's likely no technical reason why you couldn't use a pc instead of a phone […] Any personal computer built in the last five years can do anything a smartphone or tablet can in terms of processing power and connectivity. A smartphone is a computer with hardware that enables it to use cell phone networks and make calls. My inner cynic strongly suspects that Facebook and other similar corporations really like the control they have on the overall user experience on the two major mobile operating systems; i.e., eyeballs on a smartphone or tablet are worth more than those on a general purpose computing device. Too much freedom on a personal computer; with browsers that feature all kind of privacy enhancing add-ons such as ad-blockers and tracker-blockers. Much harder to monetize.

kome 10y ago
You are totally right! That's the obvious answer. On desktop you have too much freedom.
- rhaps0dy 10y ago
  I'm going to assume this is sarcasm and upvote.

executesorder66 10y ago

> It's required because your phone is where your messages are stored. So are you saying that a desktop PC's hard drive can't handle storage of some text messages but a phone can?

xomateix 10y ago
Of course, he is not saying that, he is just explaining how whatsapp is actually storing the messages.
yxlx 10y ago
No, he's saying that in order for the messages to be available, they have to be stored locally and since most people need access to the messages from their phones, it makes sense to do it this way to ensure that all messages are stored on the phone, instead of users ending up with some messages on their phones and some on their PCs.

Longhanks 10y ago

Neither does iMessage store messages on servers, and yet I receive iMessages on every device I signed on.

kccqzy 10y ago
But you can't retrieve historical iMessages on a new device.
- hudell 10y ago
  I'm not really asking for that feature. If I could send and receive messages on the computer without having to open the smartphone app every five minutes for it to restore the connection, I would be happy already;