Yes, Roamify offers unlimited data eSIM plans for Tanzania. The plans range in price from $5.50 USD for a 1‑day plan to $266.00 USD for a 30‑day plan, and the validity period can be as short as 1 day or as long as 30 days. All of these plans allow tethering and note that speed may be throttled after heavy usage.
Because the plans are unlimited, the data cap is not a hard limit; however, a Fair Usage Policy applies, so speeds may be reduced after a certain amount of data is used at normal speed. Travelers who want to confirm the typical data amount that remains at full speed or who have questions about the policy should contact Roamify directly.