These are the two options for web apps on the Telegram website. Is there any real difference between the two?
Yes, they are two different apps actively developed by two different people (A source code, K source code). They are the two winners of a contest Telegram held a few years ago, but they haven't' decided which one will be the default/standard webapp yet, so you can use both. I think web.telegram.org still picks a random one for you the first time you access it
I saw a link for each one, they left the choice to me. But how can I choose if I don't know what the differences are?
yes, https://www.telegram.org/apps lists both, but if you open web.telegram.org, you will be automatically redirected to one of the two apps without being given the choice. The differences are not listed because the two apps are supposed to offer more or less the same features, and anyway nobody's keeping track of them. As far as I know, also, the two developers are given great freedom in deciding which secondary features to implement (these webapps are not yet mature to actually replace the desktop client) so this makes keeping track of the differences a little more difficult.
You are basically not supposed to chose, choice is for those who are actively following the development of the two apps, apparently 🤷
If you want to get an idea of which client to pick, have a look at their telegram channels, they publish nice changelogs:
- https://t.me/WebK_en
- https://t.me/webachannel
(also notice at the differences in the username and title format lol)