simpleSIM does not offer a truly unlimited high‑speed data plan for Azerbaijan. The plans branded “Unlimited” provide only 1 GB per day, and once that amount is used the speed drops to 512 kbps, so the data is capped rather than unlimited.
Travelers can instead choose one of simpleSIM’s fixed data plans that give larger, fixed allowances. For example, the 20 GB plan is valid for 30 days, and the 10 GB plan is also valid for 30 days. These fixed plans allow unlimited use of the specified data amount throughout the validity period.