ZenSim eSIM Data Plans for Bulgaria

ZenSim does not offer a truly unlimited data eSIM for Bulgaria. The plans that carry “Unlimited” in the name actually include a fixed data allowance, such as 3 GB per day for the Bulgaria Unlimited STANDARD plans, and the speed is reduced after the limit is reached. For travelers who need more data without throttling, ZenSim provides fixed‑data plans. For example, the Bulgaria 40 GB – 30 Days plan offers a generous allowance at a competitive price, while the Bulgaria 20 GB – 30 Days plan balances cost and data volume. These fixed plans may be a more cost‑effective choice unless a user requires continuous high‑speed data beyond the capped limits.

ZenSim does not offer eSIM plans that include a local phone number or SMS capability in Bulgaria. Only data‑only eSIMs are available from this provider.
If you need to make calls or send messages while traveling in Bulgaria, you can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection provided by the ZenSim eSIM.

ZenSim offers 11 single‑country plans and 24 multi‑country plans that include Bulgaria. Available plans come in two main varieties: fixed‑data packages that provide a set amount of data (ranging from 1 GB to 40 GB) and daily‑cap options that allow a specified amount of data per day. Overall, prices run from roughly $5 for the smallest 1 GB package up to about $89 for the largest 40 GB bundle.