ZenSim does not offer a plan that gives unlimited high‑speed data in Singapore.
Plans named “Singapore Unlimited STANDARD” provide 3GB of high‑speed data per day, after which the speed is throttled to the reduced speed specified in the plan. Travelers who need more data can choose from ZenSim’s fixed‑data plans, such as the 20GB plan valid for 10 days ($18.00 USD) or 30 days ($21.00 USD), and the 10GB plan valid for 10 days ($13.00 USD). All of these include tethering and are available for Singapore only. These options can be more cost‑effective for most users who are not extremely heavy data consumers.