About Kinyarwanda Language
According to Wikipedia.org, Kinyarwanda is the official language of Rwanda. It is a popular dialect of the Rwanda-Rundi language that is spoken by native speakers. This language is also spoken in the Republic of the Congo and many other parts of Southern Uganda. You will be surprised to know that its writing system is Latin. There are around seven dialects of Kinyarwanda that include Bufumbwa; Bwisha; Hutu; Igikiga; Mulenge; Rufumbir and Rutwa. The native speakers of this language are 9.8 million. Kinyarwanda is from the Bantu and Niger-Congo language family. This language is closely related to Kirundi while the spelling system is Roman Catholic. The basic vowels and consonants are few while the sound of this language is very unique. You can easily distinguish by the tone that is high and low.
About Swahili Language
According to Wikipedia.org, Swahili is a popular Bantu language that is spoken in Tanzania, Uganda, and Kenya. It is also widely spoken in Burundi, Mozambique, Oman, Somalia the Democratic Republic of the Congo, and South Africa. The total number of native speakers is 98 million. According to a survey in 2012, there are about 47 million speakers in Tanzania and around 34 million in Uganda. You will be surprised to know that there is a small number of speakers in other parts of the world. Swahili is written in the Arabic script and is very much influenced by the Latin alphabet. There are plenty of dialects of Swahili but the modern standard Swahili is based on Kiunguja. Some old dialects include Maho that is distinctive from other dialects. Kimwani is another dialect that is majorly spoken in Mozambique.