Responsible data handling
Features are designed to limit unnecessary data collection and keep local information on the device where practical.
Independent software development
Practical software built with privacy and clarity in mind.
AJCoder develops focused software for Android, Windows, and the web. The goal is simple: useful tools, clear controls, responsible data handling, and documentation that users can understand.
Development principles
Software should be useful, understandable, and maintainable.
AJCoder projects are designed around practical workflows rather than unnecessary complexity.
Clear user controls
Important actions should be visible, understandable, and easy to reverse when the product allows it.
Careful release discipline
Public releases are documented and distributed through clearly identified channels.
Featured product
QuietShield for Android
QuietShield is a privacy and device-protection application for Android phones and tablets. It provides local VPN-based filtering, ad and tracker blocking, malicious-domain protection, app connection controls, custom rules, and an optional Private Browser.
Public information
Support and policy information in one place.
QuietShield users can review the privacy policy, terms of use, support guidance, and data-deletion information directly on this website.
Privacy Policy
Learn what QuietShield processes locally, what limited information may be used for licensing, and how information is handled.
QuietShield Support
Find guidance for installation, VPN protection, updates, licensing, and safe support requests.
Data Deletion
Review how to remove local app data and how to request help with server-side licensing records or device release.
Contact AJCoder
For QuietShield support, privacy questions, or developer inquiries, use the official contact email below.