Right now it’s not available in Tanzania. 
We can get there and i hope we can find a solution in the interim 

Right now a using nostr:npub17vqv727lnqyw6g5alfrgycr48g930xf4hku8vy4k6n6mnl3lcl8sglecc5 as the hub/ internet cafe and assisting in creating an Alby or mutiny wallet is the best option to serve those with no internet access.