Article 1 (General Provisions)
AlphaJo, operated by Hanjun Cho as a sole proprietor (hereinafter "Company"), establishes and discloses this Privacy Policy in accordance with Article 30 of the Personal Information Protection Act (under Korean law) in order to protect the personal information of data subjects and to handle related complaints promptly and effectively.
The Company may revise this Policy in response to changes in applicable law, changes in the purposes and methods of processing personal information, or other relevant developments. Any revisions will be announced via the Service and email.
Article 2 (Purpose of Processing Personal Information)
The Company processes personal information for the following purposes. Personal information collected shall not be used for any purpose other than those stated below. If the purpose changes, the Company will obtain separate consent or take other necessary measures in accordance with Article 18 of the Personal Information Protection Act (under Korean law).
- Account Registration and Management: Verifying intent to register, identifying and authenticating Users, maintaining and managing membership, and preventing unauthorized use of the Service
- Service Provision: Providing Service features including document upload and AI analysis, Knowledge Base generation, AI chat, and document conversion
- Billing and Settlement: Processing Paid Service subscription payments, issuing invoices, and processing refunds
- Customer Support: Handling User inquiries and complaints, delivering notices
- Service Improvement: Analyzing Service usage statistics, developing new features, and improving Service quality
Article 3 (Personal Information Collected)
The Company collects the minimum personal information necessary to provide the Service.
| Category | Items Collected | Required / Optional |
| Account Registration |
Username, email address, password (stored after bcrypt hashing) |
Required |
| Third-Party Sign-In |
Google account identifier (OpenID sub) and email when signing in with Google; Apple account identifier (sub) and email — including private relay addresses such as @privaterelay.appleid.com — when signing in with Apple. Display name is collected if returned by the provider. |
Required when using third-party sign-in |
| Paid Service Billing |
Payment information (billing key) — processed through PortOne payment gateway; credit card numbers are not stored by the Company. |
Required for Paid Service |
| Voice Input (AI Chat) |
Audio recordings captured by the user via the microphone for voice-to-text transcription in the AI chat feature. Recordings are forwarded to Cohere Inc. for speech-to-text processing (see Article 7 for processor details); after transcription, only the resulting text is retained with the chat session. |
Optional (only when the voice input button is used) |
| User-Uploaded Documents and Chat Messages |
Files uploaded by the User (PDF/DOCX/HWP/HWPX/XLSX/CSV/PPTX/audio, etc.) and their parsed text content, stored in the User's Pond. Chat messages and any document content the User chooses to load into the workspace are forwarded to Anthropic, PBC (Claude API) for AI analysis and reply generation. Assistant reply text is optionally forwarded to Google Cloud Text-to-Speech when the User taps the playback button. No User identifiers (name, email, account ID) are attached to any of these requests; see Article 7 for the full processor list. |
Optional (only when documents/messages are submitted) |
| Automatically Collected During Service Use |
IP address, access timestamps, Service usage logs, device information (browser type, OS) |
Automatically Collected |
Note: The content of documents uploaded by Users to the Service is stored in the User's Pond (individual storage workspace) and processed for AI analysis. The Company does not use the content of User documents for any purpose other than providing the Service.
Article 4 (Methods of Collection)
The Company collects personal information through the following methods:
- Direct input by the User during account registration
- Collection through the payment gateway during the Paid Service billing process
- Automatic collection of information generated during Service use
Article 5 (Retention and Use Period)
The Company will promptly destroy personal information once the purpose of its collection and use has been fulfilled. However, where retention is required under applicable law, the information shall be retained for the periods specified below.
| Information Retained | Retention Period | Legal Basis (under Korean law) |
| Records related to contracts or withdrawal of offers |
5 years |
Act on Consumer Protection in Electronic Commerce |
| Records related to payment and supply of goods/services |
5 years |
Act on Consumer Protection in Electronic Commerce |
| Records related to consumer complaints or dispute resolution |
3 years |
Act on Consumer Protection in Electronic Commerce |
| Service access logs |
3 months |
Protection of Communications Secrets Act |
| Transaction-related books and supporting documents required by tax law |
5 years |
Framework Act on National Taxes |
| Records related to electronic financial transactions |
5 years |
Electronic Financial Transactions Act |
Article 6 (Disclosure to Third Parties)
The Company processes Users' personal information only within the scope of the purposes stated in Article 2 and, as a general rule, does not disclose personal information to third parties without the User's consent.
Exceptions include the following:
- The User has provided prior consent
- Disclosure is required by law, or a law enforcement agency has made a request through procedures prescribed by applicable law for investigative purposes
| Recipient | Purpose of Disclosure | Items Disclosed | Retention Period |
| PortOne / Payment Gateway |
Processing Paid Service payments |
Payment information (billing key) |
Until termination of the payment service |
Article 7 (Data Processing Delegation)
The Company delegates certain tasks necessary for providing the Service to external service providers. When entering into delegation agreements, the Company stipulates necessary provisions for the secure management of personal information in accordance with the Personal Information Protection Act (under Korean law).
| Delegate | Delegated Tasks |
| PortOne |
Payment processing and billing key management |
| Cloudflare, Inc. |
Edge networking and Cloudflare Tunnel — request routing and TLS termination |
| Self-managed SMTP (operated by the Company) |
Sending verification and notification emails |
| Anthropic, PBC (United States) |
AI chat response generation — chat messages and any document content the User loads into their workspace are processed by Claude models for the sole purpose of producing the assistant reply. No User identifiers (name, email, account ID, IP address) are attached to these requests. |
| Cohere Inc. (Canada) |
Speech-to-text transcription — when the User taps the microphone button in chat, the captured audio is forwarded to Cohere's Transcribe API. After transcription, only the resulting text is retained. |
| Google LLC (United States) — Cloud Text-to-Speech |
Synthesis of assistant message audio playback — the text of an assistant message is sent to Google Cloud TTS when the User taps the playback button. |
| Functional Software, Inc. dba Sentry (United States) |
Crash reporting and error diagnostics. Personal identifiers are scrubbed before transmission (no email, name, or chat content; only crash stack traces and breadcrumbs). |
Any changes to the delegated tasks or delegates will be disclosed through this Policy.
Article 11 (Security Measures)
The Company takes the following measures to ensure the security of personal information:
- Password Encryption: User passwords are hashed using the bcrypt algorithm before storage; plaintext passwords are never retained.
- Encryption in Transit: Personal information is transmitted over HTTPS (TLS) encrypted connections.
- Access Control: Access to personal information is restricted to the minimum number of authorized personnel.
- No Storage of Payment Credentials: Sensitive payment information such as credit card numbers is not stored on the Company's servers and is securely processed through PortOne.
- Per-User Data Isolation: User documents and data are stored in individually isolated workspaces (Ponds).
Article 12 (Data Protection Officer)
The Company has designated the following Data Protection Officer to oversee the processing of personal information and to handle complaints and remedies related to Users' personal information:
| Field | Details |
| Name | Hanjun Cho |
| Title | Founder and Data Protection Officer |
| Contact | [email protected], +82 10-3524-9531 |
Users may contact the Data Protection Officer listed above regarding any inquiries, complaints, or remedies related to personal information protection arising from the use of the Service.
Article 13 (Remedies for Rights Infringement)
Users may contact the following organizations (under Korean law) for remedies, consultations, and other assistance regarding personal information infringement:
| Organization | Contact | Website |
| Personal Information Infringement Report Center (Korea Internet & Security Agency) |
118 (no area code) |
privacy.kisa.or.kr |
| Personal Information Dispute Mediation Committee |
1833-6972 (no area code) |
www.kopico.go.kr |
| Supreme Prosecutors' Office Cybercrime Investigation Division |
1301 (no area code) |
www.spo.go.kr |
| National Police Agency Cyber Investigation Bureau |
182 (no area code) |
ecrm.police.go.kr |
Supplementary Provisions
This Privacy Policy shall take effect on March 29, 2026.