There was a time, several years ago, when SMS notifications were very handy. Twitter, Google Calendar, and many other services, used the 160 characters to let you know of any changes to your schedule, new mentions and direct messages, and surfaced other useful information to you. But in today's age, where smartphones are so ubiquitous and you could get one for less than $100, SMS is taking a step back to regular notifications from installed apps.

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