The iMessage app provides a way to send encrypted messages to other iMessage users. Text messaging may incur additional per-text fees and doesn’t use encryption, whereas iMessage uses cellular data to send messages. Sending messages solely over text requires you to completely disable your Wi-Fi and cellular data connection, or change a few settings within the Settings app. Although iMessage provides a simple, cost-effective way to send messages, sometimes it doesn’t work as quickly or cleanly as a standard text message. You can either set the default setting to always use text-based messages or use a quick workaround to send a failed iMessage text using SMS. Warnings Writer Bio
