I hate to sound like I live in a bubble, but I live in a bubble.
Tagalog. Before today, I have never even heard of it. But, this language is spoken by more than 22 Million people. Filipino is an updated version of Tagalog.
If there is a language you would like to see added, let us know. It is easy to create the lists...It is just more difficult getting decent dictionary file of words.
With Tagalog being added, it brings the list of levidromes up to over 31000 pairs.