Mastering Swahili will take from you 36 hours or 900 weeks in a class according to FSI. Difficulty category for mastering it is evaluated - point.
Learning Tetum might seem like a overwhelming thing to do. FSI has concluded that it takes 1100 hours or 44 weeks in a class to learn the language. The difficulty point is 2.
You will most likely find people, who speaks Swahili in Tanzania, Kenya, Democratic Republic of the Congo, Bajuni Islands, Mozambique (mostly Mwani), Burundi, Rwanda, Uganda,Comoros, Mayotte, Zambia, Malawi, and Madagascar.
Number of native speakers is about 5,000,000.
Number of fluent speakers is about 140,000,000. The biggest country in which Swahili is used as a native language is African Great Lakes countries (Kenya, Tanzania, and the DRC).
Native speakers of Tetum are mostly from Indonesia and are about 500,000 people.
Tetum are spoken fluently by 550,000 people.
The language is spoken in Indonesia, Rote and West Timor East Timor.
Swahili came from Bantu language a subgroup of the Benue-Congo branch of the Niger-Congo language family.
Malayo-Polynesian branch of the Austronesian language family is the origin of Tetum language.