In non-secret chats it even saves all messages on their servers. You can then 'conveniently' retrieve all non-secret your messages when setting up Telegram on o

In non-secret chats it even saves all messages on their servers. You can then 'conveniently' retrieve all non-secret your messages when setting up Telegram on other devices. For non-secret chat it's even worse than Whatsapp, because Whatsapp reasonably convincingly simply relays messages, only storing them on their servers until it is delivered.