StoneCall Privacy Policy
Effective Date: December 5, 2025
Team Milestone GP (hereinafter "Company") is committed to protecting user privacy in accordance with applicable laws and regulations. This Privacy Policy describes how we collect, use, and protect your personal information.
1. Information We Collect
1.1 Personal Information
| Data Collected | Purpose | Retention Period |
|---|---|---|
| User ID (StoneCall Number) | User identification, call connection, account management | Until account deletion |
1.2 Location
| Data Collected | Purpose | Retention Period |
|---|---|---|
| Approximate Location | Region-based number assignment, service quality analysis, personalized services, security and fraud prevention | One-time use at collection |
1.3 Audio Files
| Data Collected | Purpose | Retention Period |
|---|---|---|
| Voice or Sound Recordings | Voice call service provision | Deleted immediately after call ends |
| Other Audio Files | Service quality analysis and improvement | Upon completion of analysis |
1.4 Contacts
| Data Collected | Purpose | Retention Period |
|---|---|---|
| Contacts (Optional) | Display caller information, service convenience features | Until app deletion |
1.5 App Info and Performance
| Data Collected | Purpose | Retention Period |
|---|---|---|
| Crash Logs | App stability improvement, bug fixes | 90 days |
| Diagnostics | Service quality analysis, performance optimization | 90 days |
| Other App Performance Data | Service improvement | 90 days |
1.6 App Activity
| Data Collected | Purpose | Retention Period |
|---|---|---|
| App Interactions | Service usage analysis, user experience improvement | 1 year |
| In-app Search History | Service improvement, personalized features | 1 year |
| Other User-generated Content | Service provision | Until user deletion |
| Other Actions | Service analysis and improvement | 1 year |
1.7 Device or Other IDs
| Data Collected | Purpose | Retention Period |
|---|---|---|
| Device Identifiers | Device identification, push notifications, security | Until app deletion |
| Push Tokens (FCM/APNs) | Incoming call notifications | Until app deletion |
1.8 Automatically Generated Information
- Service usage records, access logs
- Device information (OS version, app version)
- Call records (caller/callee numbers, time, duration)
2. How We Use Your Information
We use collected personal information for the following purposes:
2.1 App Functionality
- Providing voice call services
- Region-based phone number assignment
- Incoming call notifications (push notifications)
- Call history management
2.2 Analytics
- Service usage analysis
- App performance monitoring and improvement
- Crash analysis
- Service quality enhancement
2.3 Developer Communications
- Service-related announcements
- Important security updates
- New feature notifications
2.4 Advertising or Marketing
- Service-related promotions
- Personalized offers
- Marketing performance analysis
2.5 Fraud Prevention, Security, and Compliance
- Detection of abnormal service usage
- Prevention of unauthorized use
- Legal compliance and dispute resolution
2.6 Personalization
- Personalized service delivery
- Region-based service optimization
2.7 Account Management
- User identification and authentication
- Service agreement management
- Customer support
3. Legal Basis for Processing
3.1 Performance of Contract
Personal information essential for service provision is processed for the execution and performance of the service agreement with users:
- User ID (StoneCall Number)
- Approximate location information
- Device identifiers
- Push tokens
- Call records
- App performance data
3.2 Consent
The following items are processed with separate user consent:
- Contacts access (optional)
- Marketing communications (optional)
- Third-party sharing (when applicable)
4. Sharing of Personal Information
We do not share your personal information with third parties except in the following cases:
- When you have given prior consent
- When required by law or requested by investigative authorities following legal procedures
External Service Integration
When integrating with external services, we will provide separate notice and obtain consent:
| Item | Details |
|---|---|
| Recipient | (Integrated service name) |
| Data Shared | StoneCall number, usage records |
| Purpose | Use of integrated service |
| Retention | Until termination of integrated service use |
5. Data Retention and Deletion
5.1 Deletion Procedure
Personal information is transferred to a separate database after the purpose of collection is achieved and deleted after a certain period according to internal policies and applicable laws.
5.2 Deletion Method
- Electronic files: Permanently deleted using irreversible methods
- Paper documents: Shredded or incinerated
5.3 Legal Retention Requirements
When required by law, data is retained for the specified period:
| Data Type | Retention Period | Legal Basis |
|---|---|---|
| Service usage records | 3 months | Telecommunications Privacy Act |
| Access log records | 3 months | Telecommunications Privacy Act |
6. Your Rights
You may exercise the following rights at any time:
6.1 Rights
- Right to access personal information
- Right to correct or delete personal information
- Right to suspend processing
- Right to withdraw consent
- Right to delete account
6.2 How to Exercise
- Through the app settings menu (Settings > DELETE ACCOUNT)
- By email request to the Data Protection Officer
6.3 Processing Timeline
Requests will be processed and results communicated within 10 days of receipt.
7. Security Measures
We implement the following measures to ensure the security of personal information:
- Administrative measures: Internal management plans, employee training
- Technical measures: Encryption (TLS/DTLS), access control, security software
- Physical measures: Access control to server rooms and data storage areas
- Encryption in transit: All data is encrypted during transmission
8. Permissions and Data Collection
8.1 App Permissions
The app requests the following permissions for service provision:
| Permission | Purpose | Required |
|---|---|---|
| Microphone | Voice calls | Required |
| Location (Approximate) | Region-based number assignment | Required |
| Notifications | Incoming call alerts | Required |
| Contacts | Display caller information | Optional |
8.2 Permission Denial
Denying required permissions may restrict service use. Denying optional permissions will not affect basic service functionality.
9. Data Protection Officer
The Company has designated a Data Protection Officer to oversee personal information protection and handle user complaints:
| Item | Details |
|---|---|
| Name | Wonsup Lee |
| Title | Data Protection Officer |
| [email protected] |
10. Changes to This Policy
This Privacy Policy may be updated due to changes in laws, policies, or security technologies. Changes will be announced through the app at least 7 days before the effective date.
11. GDPR Information (EU Users)
EU users have additional rights under the General Data Protection Regulation (GDPR):
11.1 Legal Basis
- Contract performance (GDPR Article 6(1)(b)): Processing essential for service provision
- Consent (GDPR Article 6(1)(a)): Processing for optional purposes such as marketing
11.2 Additional Rights
- Right to data portability: Right to receive your personal data in a structured format
- Right to erasure (Right to be forgotten): Right to request deletion of personal data
- Right to restriction of processing: Right to request processing restrictions in certain situations
- Right to object: Right to object to processing based on legitimate interests
11.3 Supervisory Authority
EU users may file complaints with the data protection supervisory authority in their country of residence.
Supplementary Provisions
This Privacy Policy is effective from December 5, 2025.
Contact
- Company: Team Milestone GP
- Data Protection Officer: Wonsup Lee
- Email: [email protected]