Whatsapp Will They Know [repack] — When You Unblock Someone On

While they won't get an alert, their view of your profile changes immediately: YouTube·Steph Lee Tech

While there isn't a direct alert, the person may notice several changes to your profile and chat status: when you unblock someone on whatsapp will they know

If you were blocked, your profile picture usually disappears or reverts to a default silhouette for them. Once unblocked, your current photo will suddenly reappear. While they won't get an alert, their view

If they try to add you to a WhatsApp group and it finally works, they will know the block has been lifted. This is the most common giveaway

This is the most common giveaway. If they sent you messages while they were blocked, those messages will stay at a single gray tick (sent but not delivered) forever, even after you unblock them. However, any new message they send after being unblocked will immediately show two gray ticks (delivered).