Terms of use

This is a translation of the Korean original. Where they differ, the Korean original prevails.

Article 1 (Purpose)

These terms set out the conditions and procedures for using the games, calculators and other services on this site, and the rights and duties of users and the operator.

Article 2 (Using the service)

The service is free, and most of it works without an account. Posting to a leaderboard needs a nickname and password.

Article 3 (Accounts and nicknames)

• You are responsible for looking after your nickname and password.
• Nicknames that impersonate someone else or contain insulting or hateful language may be changed or removed without notice.

Article 4 (What is not allowed)

• Manipulating records with automated tools or altered requests
• Putting excessive load on the service
• Using someone else's account without permission

Records found to break these rules are deleted without notice, and the account may be restricted.

Article 5 (Calculation results)

The rates and results shown by the calculators are for reference only. Tax rates change and can differ by item and type of transaction, so always check the tax authority's official information before filing or paying. The operator is not liable for any loss arising from relying on them.

Article 6 (Changes to the service)

The operator may change or stop the service, and will announce significant changes on the site.

Article 7 (Changes to these terms)

Changes to these terms are announced on the site from 7 days before they take effect.

Guest posting is available only when both the site and board allow it. Keep your editing/deletion password safe and do not impersonate others or spam. Violations may lead to a temporary or permanent IP-based board or community block.

Social sign-in

Enabled providers: Google. We receive a provider-specific ID, email and its verification status. Only an email the provider has verified is kept on the account; an unverified one is discarded. Apple may supply a relay email. Names are used only to suggest a nickname. We never receive or store the provider password. Existing accounts with the same email are not linked automatically.