Why does WhatsApp have one checkmark for messages - briefly?
WhatsApp uses a single checkmark to indicate that your message has been sent from your device. It does not confirm delivery or receipt by the recipient.
Why does WhatsApp have one checkmark for messages - in detail?
WhatsApp uses a single checkmark to indicate that a message has been successfully sent from the user's device but not yet delivered to the recipient. This status update serves as an initial confirmation that the message is on its way, providing users with some assurance that their communication attempt has left their device. However, it does not guarantee delivery or read receipt, which are indicated by additional checkmarks and features in the app.