Many mystery and spy movies are based on the premise that you can send messages that self-destruct, but you don't need to be an international secret agent to do the same with your own texts.
In fact, most popular chat apps now include some kind of disappearing message feature—which means that if you don't want a permanent record of your conversation, you don't have to have one. In fact, encrypted messaging app Signal made its disappearing message feature the default.
While it's handy to have chat archives to look back on for sentimental and practical reasons (recipes, addresses, instructions, and more), there are other times you'd rather nothing was saved. Here's what to do.
There is a caveat here for all of these apps, in that the people you're communicating with can take screenshots of what you've said—or, if screenshots are blocked, they can take a photo of the screen with another device. Some of them promise to notify you if your messages have been screenshotted or downloaded, but there's always a workaround. That's something to bear in mind when choosing who to chat with and how much to share.
Update, December 2021: We've updated instructions for Signal, Snapchat, and Messenger (formerly Facebook Messenger.)
The disappearing messages feature in Signal is an option for every conversation you have, and now it's available by default or by an individual conversation: You can switch between disappearing messages and permanent messages at any time in any thread. To do this, tap the top banner in any thread, then pick Disappearing messages.
You can choose anywhere from one second to four weeks for your messages to stick around after they've been viewed (or choose Off to disable the feature). You can even set a custom timer—you could tell a message to be gone in 60 seconds. An alert appears in the chat whenever you've changed this setting, and anything you send from then on follows the rules you've set.
To set a default expiry time for messages in all your chats, open the main app settings page and choose Privacy and Default timer for new chats (under Disappearing messages). This applies to every chat you initiate from then on, not to the existing conversations on your phone.
WhatsApp's disappearing messages only work with images and videos rather than text, for now. The recipient has 14 days to view whatever it is you've sent them, and it vanishes as soon as it's viewed.
From inside WhatsApp, open the conversation you want to send the picture or video clip to, tap the camera icon at the bottom, then capture your content. You'll see a little icon showing a 1 in a circle, next to the send icon—tap this to make your message a disappearing image or video.
You can include a caption with the photo or clip, which disappears along with it. Once you've sent whatever it is, you won't see it from your end: You'll only see a Photo or Video entry in the conversation thread, with the small 1 icon next to it. The text will change to Opened once it's been viewed.
Snapchat didn't invent disappearing messages, but it certainly helped popularize them. Access the chat tab by clicking on the second icon from the left along the bottom of the screen. From your main conversation list screen, you can tap any contact to start a conversation, or tap the compose icon (bottom right) if the person you want to talk to isn't on screen.
Anything in the thread, including text and images, will vanish once it's been viewed. Either party in a one-to-one conversation can choose to save something permanently by pressing and holding on it—but you'll be able to see if this happens because it will stay onscreen.
Alternatively, you can go to the photo- and video-capture screen (which appears first when you switch to Snapchat), take an image or a clip, then pick who you want to send it to. Again, whatever you send will disappear as soon as it's viewed.
After Facebook’s rebrand to Meta, this app is now known simply as Messenger. The app is fully signed up for disappearing messages, which can include everything that normal chats include. These conversations are stored separately—you can't have normal messages and disappearing messages together in the same thread.
To set up a chat, tap the compose button (top right), then make sure the padlock toggle switch (top right again) is set to on—this enables secret conversations and disappearing messages. With that done, you can then choose the contact or contacts that you want to communicate with.
Everything you send in one of these chats vanishes as soon as it's viewed. If you want to give people a bit more time, tap the timer icon to the left of the send box—messages can stick around for up to a day after being viewed, if you want them to.
Instagram has now gone way beyond photo-sharing to cover Snapchat-style stories, direct messaging, and more. The direct messaging component lets you send photos and videos that stay on record or disappear once they've been viewed, though text always stays in place.
Head to your conversation list in the Instagram app, then open the thread that you want to send the disappearing message to (tap the compose icon, top right, if you can't see it). Tap the camera icon on the left of the compose box and capture the photo or video you want to send.
Down at the bottom of the screen, you'll then see various options for what you're sending: View once, Allow replay (which is really view twice), and Keep in chat. Pick whichever you prefer before confirming with the Send button.
Telegram is also popular for its disappearing messages. These conversations are kept separate from normal threads in what are called secret chats, and you can start one from a contact's profile.
Open a conversation with a contact, tap their profile link at the top, then tap the three dots and pick Start Secret Chat from the menu that pops up. This opens up a separate conversation thread where text, images, and everything else is temporary.
Tap the timer icon at the top (Android) or bottom (iOS) of the window to set how long messages stick around after they've been viewed. The countdown time you specify will be listed in the conversation thread as well.
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