How to Read Messages Without Sending a Seen Receipt
A seen receipt is sent when you open the messaging app and the conversation loads. Reading the notification instead avoids it: NotiLog saves each notification's text as it arrives, so you can read the message without opening WhatsApp, Messenger or SMS — and without turning on the blue tick.
What triggers a seen receipt
The read state is not caused by the message reaching your phone. It is caused by the app telling the server that the chat is on screen:
You open the app and the conversation list loads.
The chat becomes visible — including via a popup or split-screen preview in some apps.
You tap a notification that deep-links into the chat.
Reading a notification does not do any of these. The notification is rendered by Android; the messaging app is not launched, so no read event is produced.
Which apps show receipts
App
Seen receipt
WhatsApp
Yes — double blue ticks
Messenger
Yes — "Seen"
Telegram
Yes (unless receipts are disabled in settings)
Instagram Direct
Yes — "Seen"
SMS / MMS
Usually no read receipt
Behaviour differs by app and version. If the app does not send a receipt at all, there is nothing to avoid.