Qrispy eSIM does not provide an unlimited data eSIM for Japan. All of its Japan plans are Pay‑as‑you‑go data credits, with options ranging from 1GB to 10GB. For example, the Japan 10GB plan costs $60.00 USD, the Japan 5GB plan costs $30.00 USD, and the Japan 3GB plan costs $18.00 USD, each allowing tethering and offering the same data credit at the current local rate.
Because the data credit does not expire, unused data remains available for future use, and travelers can add more credit whenever needed. This Pay‑as‑you‑go model can be more cost‑effective than an unlimited plan for most users, as payment is tied only to the data actually consumed.