When you compare platforms in Japan, start with licensing and compliance. Check that the business is registered to operate locally and publishes clear terms. Review security features such as multi‑factor login, withdrawal allowlists, and cold storage practices. Look at supported assets, order types, and local payment methods. Read the full fee schedule and any limits. Test the app or web flow to ensure it suits you. You can also review support options and language coverage. This is general information and not financial or legal advice.