ESTsoft Corp. (hereinafter the "Company") places great importance on the personal information of its users. In order to protect users' personal information, the Company complies with the Personal Information Protection Act and other relevant laws, and processes personal information lawfully and manages it safely.

Accordingly, pursuant to Article 30 of the Personal Information Protection Act, the Company establishes and discloses this Privacy Policy to inform users of the procedures and standards for processing personal information, and to promptly and smoothly handle related grievances.

This Privacy Policy may be revised from time to time due to changes in relevant laws and Company policy. If the Company's Privacy Policy is revised, the changes will be posted on the services operated by the Company, and can be checked at any time by visiting the ALTools website (https://altools.co.kr/).

Personal information related to EST Integrated Membership sign-up, identity verification, and account management is processed by ESTsoft Corp. as the data controller, and part of the related operational work is entrusted to EstAid Corp. Personal information related to points, paid subscriptions, payments, and related customer inquiries is separately processed by EstAid Corp. as the data controller. Further details can be found in the EST Integrated Membership Privacy Policy and EstAid Corp.'s Points and Subscription Service Privacy Policy.

This Privacy Policy includes the following:

1. Purposes of Processing Personal Information

The Company processes personal information for the following purposes. The personal information being processed will not be used for any purpose other than those set forth below, and if the purpose of use changes, the Company will take necessary measures, such as obtaining separate consent, in accordance with Article 18 of the Personal Information Protection Act.

1) Service Provision

The Company processes personal information for the purposes of providing services, providing content, and providing customized services.

2) Event Participation

The Company processes personal information for the purposes of providing and delivering prizes and providing customer inquiry services related to events.

3) AI Service Provision

Personal information is processed to provide AI features requested by users.

2. Items of Personal Information Processed and Retention Period

ESTsoft collects and uses personal information of data subjects as follows.