Well, there is some truth to it, but as a user of both I prefer whatsapp since: 1. most of the features that whatsapp lack are features I find annoying in Tele

Well, there is some truth to it, but as a user of both I prefer whatsapp since: 1. most of the features that whatsapp lack are features I find annoying in Telegram. 2. Whatsapp is encrypted by default, which Telegram is not. I don't think I have ever used a secret chat, despite having oven 50 people with whom I regularly talk to over Telegram. The client being open source is somewhat of a stretch. They have released many new versions, yet the github repo hasn't been updated in 7 months.