WhatsApp, Signal and Telegram put the timer on each message: WhatsApp removes new messages 24 hours, 7 days or 90 days after they are sent, Signal offers preset times or a custom time of up to 4 weeks, and Telegram's auto-delete counts from sending, with a separate timer for Secret Chats. FadeTalk puts the timer on the whole chat instead, with an end time of 1 hour, 1 day, 7 days or a custom time, or no timer at all. No timer in any of these apps stops the other person from keeping what they have already seen, for example by photographing the screen with another device.
Disappearing messages are messages that a chat app removes automatically once a set time has passed. The apps differ on four points: how long the timer can be, what it counts from, whether it applies to each message or to the whole chat, and who can change it.
Disappearing message timers side by side
The table summarises each company's own documentation, checked in October 2026: the WhatsApp Help Center article "About disappearing messages" (faq.whatsapp.com/673193694148537), the Signal Support article "Set and manage disappearing messages", the Telegram FAQ (telegram.org/faq) with Telegram's blog posts on auto-delete, and FadeTalk's app store description. Apps change their settings over time, so check the current help page before relying on a detail.
| App | Timer options | What the timer counts | Who can set it |
|---|---|---|---|
| 24 hours, 7 days or 90 days | Each new message, from when it is sent, unless someone keeps it | Either person in a one-to-one chat; in groups, anyone by default, or only admins if admins choose | |
| Signal | Preset times, or a custom time of up to 4 weeks | Each new message: from sending for the sender, from reading for the recipient | Anyone in the chat; in groups, admins can choose who can change it |
| Telegram auto-delete | Periods such as 1 day, 1 week or 1 month, and flexible settings such as 2 days or 3 weeks | Each new message, from when it is sent | Admins in groups and channels, and in small private groups any member allowed to change the group's name and photo; a global timer in Settings covers your new chats |
| Telegram Secret Chats | A time limit chosen with the clock icon in the chat | Each new message, from when it is displayed on the recipient's screen | Not specified in the Telegram FAQ |
| FadeTalk | 1 hour, 1 day, 7 days, a custom time, or no timer | The whole chat, with the time left always shown; at its end time the chat leaves both lists and its messages are deleted on schedule | Set for each chat |
How WhatsApp, Signal and Telegram time each message
WhatsApp (WhatsApp Help Center, checked October 2026) lets you turn disappearing messages on for specific chats or set a default timer for new individual chats. The timer affects only messages sent after it is set. Anyone in the chat can keep a message so that it does not disappear, and the sender has the final say over who can keep it. The help article also lists what the timer does not cover: a backup made before a message disappears includes it, a message forwarded to a chat without the timer stays there, a quoted message may remain visible in a reply, and a notification preview may show until the recipient opens WhatsApp.
Signal (Signal Support, checked October 2026) applies the timer to new messages after it is set or changed, and the change syncs to your linked devices. You can set a default timer for new chats under Settings > Privacy > Default timer for new chats, or a timer for one chat in its chat settings. Each disappearing message shows a countdown icon, and when the time is up the message is deleted from the device. Because a received message's timer starts only once it is read, the same message can leave the sender's and the recipient's devices at different times.
Telegram (Telegram FAQ and Telegram blog, checked October 2026) has two mechanisms. The auto-delete timer works in any chat, counts from sending rather than reading, and applies only to messages sent after it is set; earlier messages stay in the history. In groups and channels, admins set it, and in small private groups so can any member allowed to change the group's name and photo. A global timer under Settings > Privacy & Security > Auto-Delete Messages applies to new chats, and existing chats are not affected unless you add them. Secret Chats have a separate self-destruct timer: its clock starts when the message is displayed on the recipient's screen, and when it runs out the message disappears from both devices. That timer also applies only to messages sent after it is set, and it is available for media in private cloud chats.
How FadeTalk sets an end time for the whole chat
FadeTalk's timer belongs to the chat rather than to each message. Each chat is set to 1 hour, 1 day, 7 days or a custom time, or kept with no timer, and the time left stays visible. At the end time the chat leaves both people's lists and its messages are deleted on schedule. Reported content, backups and legal holds are exceptions, and what the other person has already seen, saved or captured cannot be taken back.
For single messages, FadeTalk has two separate controls: recall removes a message from both sides, and a view-once message leaves both screens 5, 10 or 30 seconds after it is opened, with an open receipt. How these behave, and where each one stops, is covered in message recall, view-once and screenshot alerts explained.
Screenshots and copies: the limit every app shares
No timer controls the other person's device. WhatsApp's help page advises using disappearing messages only with people you trust, because the recipient can forward, screenshot or copy a message, or photograph it with another device, before it disappears. Signal's article says disappearing messages are not meant for a contact who wants a record, because that person can photograph the screen with another camera. The Telegram FAQ says Telegram will try to alert you about screenshots in Secret Chats, but that there is no bulletproof way to detect them on certain systems. FadeTalk alerts you to screenshots only in one-to-one chats between app users; detection is not guaranteed, and there is none on the web. None of the four can stop someone photographing the screen with another device.
Choosing between a message timer and a chat end time
A per-message timer suits an ongoing conversation you want to keep while old messages are cleared: the chat stays, and the oldest messages fall away first. Signal itself describes disappearing messages as a way to keep your message history tidy. An end time for the whole chat suits a conversation with a natural end: when that time comes, the chat itself leaves both lists. Either way, the timer changes what stays by default; it does not replace deciding what to send. What "deleted on schedule" covers in FadeTalk, and its exceptions, is explained in what "scheduled to disappear" means.