Malayalam translation appearing in your app for download (karakunnu/Elayur) do not follow the Salafs way
(and Elayur is not a Muslim also). It is published by Jamat E Islami since Karakunnu is part of it and they promoted it due to that)
Better always to take language translations authenticated by Madina quran printing press, since they verify it with scholars in that language who follows Salafs way.