MobileSIM eSIM Data Plans for Australia

MobileSIM does not provide a truly unlimited data eSIM for Australia. All plans marketed under the “Unlimited” name allow 3GB of high‑speed data per day; once the daily limit is reached the speed is throttled to 1000 kbps, so the plan is technically a fixed‑data offer rather than a limitless one.

For travelers who need a larger, straightforward data allowance, MobileSIM offers fixed‑data eSIMs such as a 30 GB plan for 90 days costing $60.00 USD, a 20 GB plan for 30 days at $30.00 USD, or a 10 GB plan for 30 days for $18.00 USD. These options may be more cost‑effective if heavy data usage is anticipated, since they avoid the reduced speed penalty that applies after each daily limit on the “Unlimited” plans.

MobileSIM does not offer an eSIM plan for Australia that includes a phone number or SMS capability. The provider only supplies data‑only eSIM plans, so travelers must use data connections for messaging and calling through VoIP applications such as WhatsApp, Telegram, or iMessage.

MobileSIM offers a total of 30 data plans in Australia – 13 single‑country plans and 17 multi‑country plans. The plans are priced between $1.50 and $69, with data caps ranging from 200 MB to 30 GB and validity periods from 3 to 365 days. Some plans are fixed‑data, giving users a set amount of data for the entire validity period, while others use daily caps that limit the amount of data a user can download each day.