Main difference
Tanzania eVisa is not the same as Kenya eTA
The Tanzania eVisa is an online visa application process for eligible visitors traveling to the United Republic of Tanzania, including Tanzania Mainland and Zanzibar. Applicants fill in the online form, make payment and submit the application for internal review.
The Kenya eTA is an Electronic Travel Authorization system. Kenya’s official eTA portal states that travelers are required to submit information before departure and that failure to comply may lead to denied boarding or a penalty fee on arrival.