Privacy Policy — DNS Changer

Last updated: 2026-07-18

Overview

DNS Changer ("the app", "we", "us") is a utility app that lets you choose which DNS resolver your device uses. This policy explains what data we collect, why, and how it's used.

What we collect

• Device identifier: a platform-stable device ID (iOS identifierForVendor, Android ANDROID_ID) used to enforce plan-based device limits and to let you use the app as a guest without creating an account.
• Account information (only if you create an account or sign in): email address, and — if you sign in with Google — the basic profile information Google provides (name, email).
• DNS server selection: which DNS server (from our list, or one you added yourself) you've selected. We do not log or inspect the content of your DNS queries or browsing activity.
• Usage analytics: aggregate, non-identifying events such as which DNS server was selected (via Firebase Analytics), used to understand feature usage.
• Crash and diagnostic data: automatically collected via Firebase Crashlytics if the app encounters an error, to help us fix bugs.
• Push notification token: if notifications are enabled, a device token used to deliver notifications to you.
• Subscription status: if you subscribe to a paid plan, purchase status is managed by Apple/Google's app store billing systems and RevenueCat; we do not collect your payment details directly.

What we don't do

• We do not sell your data to third parties.
• We do not inspect, log, or store the contents of your DNS queries or general network traffic.
• Free-tier ads (via Google AdMob) may use their own identifiers per Apple/Google's respective ad policies — see Google's own privacy policy for details on AdMob data handling.

How the DNS feature works

When you select a DNS server, the app changes your device's DNS resolver to the one you chose, using the platform's own system APIs (on iOS, NEDNSSettingsManager; on Android, a VpnService that intercepts only DNS traffic on port 53). This is limited to DNS resolution — the app does not route, inspect, or proxy your general internet traffic.

Your choices

• You can use the app as a guest without providing an email address.
• You can delete your account from within the app; note that this does not automatically cancel an active App Store/Play Store subscription — those must be cancelled through the respective store.
• You can disable notifications from your device's system settings.

Contact

Questions about this policy can be sent to: support@fastdns.com

Changes to this policy

We may update this policy as the app changes. Material changes will be reflected here with an updated "Last updated" date.