Getting Gorilla permits in Uganda
You can spend an hour interacting with mountain gorillas in Bwindi Impenetrable Forest National Park or Mgahinga Gorilla National Park for the cost of a gorilla permit in Uganda, which costs $700 per person per trek for foreign nonresidents, $600 per person for residents, and $70 for East African citizens (Uganda, Rwanda, Tanzania, Kenya, Burundi, and South Sudan). There are 136 gorilla permits available daily for gorilla trekking in Uganda, which contains 17 habituated gorilla family groups, 16 of which are located in Bwindi and 1 in Mgahinga. Gorilla habituation, which is only possible in Bwindi forest and costs $1500 per person, allows you the chance to spend more time with mountain gorillas while gorilla trekking in Uganda.

Getting Gorilla permits in Rwanda
The Gorilla permit in Rwanda Costs $1500 Per person per trek for the Foreign nonresidents, $500 Per person for foreign residents and $200 for East African Citizens (Uganda, Rwanda, Tanzania, Kenya, Burundi and South Sudan), this gives you an opportunity to spend one hour encounter with the mountain gorillas in Volcanoes National Park. Rwanda has 12 Gorilla families hence 96 Gorilla permits are available each day for gorilla trekking in Volcanoes National Park.