Confide is an instant messaging tool that, instead of offering a ton of emojis, stickers, and other decorative elements, focuses on guaranteeing completely secure communication that only the recipient can see.
The way Confide works is simple: users can exchange encrypted text messages with other contacts, and once the messages are read, they're destroyed. What's more, it's impossible to take screenshots within the application, so the only way to keep a message would be to take a picture by some other means (e.g. another phone or a camera).
To read the messages, you have to slide your finger across the screen to reveal the words. Once you have revealed all the words, the message will destroy itself.
Confide is a very useful instant messaging tool for serious communication. If you're looking for a way to send secure messages without emoticons or extra flourishes, this is it.