Picturing the Future of Messaging: Twilio MMS Now Available on All US Numbers
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Personally, I don't think I've ever used them, even before mobile Internet. Is it common in the US?
When developing an application for the general public, none of the services you suggest come close to solving that problem.
I don't think that works in practice, some / many people can't receive MMS. I don't even know if I can, think it has to be set up on the phone to match the carrier.. or something =/
Maybe it's different in the U.S.?
But people will forever stick to their stock messaging application as much as possible, sticking to slower, more restrictive technologies. MMS is a dinosaur.
Sorry, but the need to have the same app installed to send and receive an image significantly restricts the audience of a given product (and you're locked into someone else's app).
Current: Step 1 >> Get 100M users to install an app. Step 2 >> Get them to take pictures of stuff. Step 3 >> Get permissions all the people who took picture to upload the pictures or just replace their normal picture-taking behavior with your app. No biggie. With universal MMS (via Twilio): Step 1 >> Get them to take pictures of stuff
And besides, with those services, I am sending messages to usernames, not to people... except for Facebook, in which case I am sending to one of many thousands of John Does who are on Facebook.