This Privacy Policy explains how LengKeng Lab (“we”, “us”, “our”) collects, uses, and protects your personal information when you use the ArcVPN application (“ArcVPN”, “app”, “service”).
We are committed to safeguarding your privacy and maintaining transparency about how your data is handled.
By using ArcVPN, you acknowledge that you understand and agree to the practices described in this Privacy Policy.
ArcVPN only collects the minimum amount of data necessary to operate the app, improve stability, and support advertising.
ArcVPN does NOT collect, monitor, store, or analyze any VPN traffic data.
This means we DO NOT collect:
Browsing history
DNS queries
Websites you visit
Data you send or receive
Your real IP address or destination IP
Connection timestamps or session logs
ArcVPN is designed to protect your privacy and anonymity.
ArcVPN does not require user registration or login.
Therefore, we do not collect:
Name
Email address
Phone number
Personal identifiers
We collect basic device metadata necessary for analytics and troubleshooting:
Device model
Operating system version
App version
Language settings
Device performance indicators
Used to determine network availability and diagnose connectivity problems:
Network type (Wi-Fi / Mobile data)
Network status
General connection errors
Collected via Firebase Crashlytics to improve app reliability.
This may include:
Crash reports
Error logs
App performance data
Collected through Firebase Analytics, including:
App opens
Feature usage
General user interactions
Analytics data is anonymous and does not contain personally identifiable information.
ArcVPN uses Google AdMob.
AdMob may collect:
Advertising ID (AdID)
Device information
Approximate location (derived from IP, not GPS)
Interaction with advertisements
We do not directly collect this data — it is handled by Google under their privacy policies.
ArcVPN does not collect:
Name, email, phone
GPS location
Contact list
Photos or media
Payment data
VPN traffic logs
VPN usage details (server connected, bandwidth, duration)
We use collected data only for the following purposes:
Enabling VPN connectivity
Maintaining a secure connection
Diagnose crashes
Detect network issues
Optimize user experience
Understand app usage trends
Improve features
Monitor app stability
ArcVPN is a free app supported by Google AdMob ads.
Collected ad data helps:
Detect invalid traffic
Personalize or deliver contextual ads (depending on your consent settings)
We may process or store information when required under applicable laws.
We do not sell or trade your personal data.
We only share limited data with:
Necessary to operate the app:
Firebase Analytics & Crashlytics
Google AdMob
These providers act under strict confidentiality and data protection terms.
We may disclose data if required to:
Comply with laws
Respond to government requests
Protect our rights or users’ safety
In case of merger or acquisition, non-personal or anonymized data may be transferred.
ArcVPN never shares VPN traffic data, because we do not collect it.
Because we use global third-party services (Firebase, Google), your information may be processed in:
The United States
EU/EEA
Singapore
Other regions where Google maintains servers
We follow standard data protection agreements (including SCCs under GDPR) to safeguard international data transfers.
We retain:
Crash logs and analytics data only as long as necessary for troubleshooting and performance improvement
Advertising data is retained by Google following their retention policy
We do not retain:
VPN session information
VPN traffic
User identifiers
We implement industry-standard security measures to protect your information, including:
Encryption
Firewalls
Limited access controls
Secure network protocols
However, no online service can guarantee 100% security.
We recommend monitoring your device and settings for additional protection.
Depending on your jurisdiction (EU/EEA, UK, California), you may have rights including:
You may exercise your rights by contacting us at:
📧 diamond.00207@gmail.com
ArcVPN is not intended for children under 13.
We do not knowingly collect personal data from minors.
If we become aware that we collected data from a child under 13 without parental consent, we will delete it promptly.
Parents may contact us to request deletion.
ArcVPN uses the following Android permissions:
Permission
Purpose
INTERNET
Required for VPN connection & ads
ACCESS_NETWORK_STATE
Detect network status for VPN operation
BIND_VPN_SERVICE
Enables ArcVPN to create secure VPN tunnels
FOREGROUND_SERVICE (implicit for VPN)
Keeps VPN running in foreground
Google AD_ID (AdMob)
Provides advertising functionality
ArcVPN does not use:
Location permissions
Storage permissions
Camera/Microphone permissions
Contact access
ArcVPN does not use cookies directly.
However, third-party SDKs (Google AdMob, Firebase) may use identifiers or tracking technologies for:
Analytics
App performance
Advertising
Users may disable personalized ads through:
Android Settings → Google → Ads
or through EU consent dialog (if applicable).
We may update this Policy from time to time.
When we do, we will:
Update the “Last updated” date
Display a notice inside the app (when required)
Continued use of ArcVPN after changes means you agree to the updated policy.
If you have questions, concerns, or privacy-related requests, please contact:
LengKeng Lab
📧 diamond.00207@gmail.com