Qikks Studio

Zip VPN

Open-Source Licenses

Last updated: August 11, 2026

Zip VPN is built with the help of open-source software. We are grateful to the projects and communities below. Each component remains the property of its respective authors and is used under the license shown. Full license texts are available from each project.

Apache License 2.0

Used in accordance with the terms of the Apache License, Version 2.0.

  • Kotlin - JetBrains
    Apache License 2.0
  • Kotlin Coroutines - JetBrains
    Apache License 2.0
  • kotlinx.serialization - JetBrains
    Apache License 2.0
  • Jetpack Compose - Google / AndroidX
    Apache License 2.0
  • Material 3 & Material Icons Extended - Google
    Apache License 2.0
  • AndroidX Core, Activity & Lifecycle - Google / AndroidX
    Apache License 2.0
  • AndroidX Navigation Compose - Google / AndroidX
    Apache License 2.0
  • AndroidX DataStore Preferences - Google / AndroidX
    Apache License 2.0
  • AndroidX Core SplashScreen - Google / AndroidX
    Apache License 2.0
  • AndroidX LocalBroadcastManager - Google / AndroidX
    Apache License 2.0
  • Dagger Hilt - Google
    Apache License 2.0
  • OkHttp - Square, Inc.
    Apache License 2.0
  • Retrofit - Square, Inc.
    Apache License 2.0
  • Retrofit Kotlin Serialization Converter - Jake Wharton
    Apache License 2.0
  • Meta Audience Network Mediation Adapter - Meta Platforms, Inc.
    Apache License 2.0

Android Software Development Kit License

Google libraries provided under the Android Software Development Kit License Agreement.

  • Google Play In-App Updates - Google
    Android Software Development Kit License
  • Google Mobile Ads SDK (AdMob) - Google
    Android Software Development Kit License
  • Google User Messaging Platform - Google
    Android Software Development Kit License
  • Firebase Analytics SDK - Google
    Android Software Development Kit License

VPN Engine

The VPN tunnel is powered by the OpenVPN ecosystem. These components are licensed under the GNU General Public License v2 and related licenses; their full source and license texts are available from the respective projects.

  • OpenVPN for Android (ics-openvpn) - Arne Schwabe & contributors
    GNU GPL v2
  • OpenVPN - OpenVPN Inc. & contributors
    GNU GPL v2
  • OpenSSL - The OpenSSL Project
    Apache License 2.0 (OpenSSL/SSLeay)

Server Directory

Public server data used by the app.

  • VPN Gate - University of Tsukuba, Japan & volunteer operators
    Free public academic experiment

Questions

For questions about the open-source software used in the App, or to request a copy of the source for any GPL-licensed component, contact us at contact@qikksstudio.com.