Block Ads and Trackers at the DNS Level
Sinkhole is an on-device DNS sinkhole for iOS. Three operating modes — VPN, LAN Server, and Off — with real-time query logging and analytics.
Available on iOS, watchOS
DNS-Level Protection for Your iPhone
Ads and trackers reach your device before any app-level blocker can stop them. DNS filtering catches them at the source — before any connection is made — across every app and browser on your device.
Sinkhole is different. Everything runs on-device. No subscription to a remote filtering service, no data leaving your phone, and full visibility into every DNS query your device makes.
What Sinkhole Does
On-Device Filtering
No cloud, no proxy. DNS queries are filtered right on your device.
Three Modes
VPN mode for full device protection. LAN Server mode for your whole network. Or turn it off.
Real-Time Analytics
See every DNS query in real-time. Block lists, allow lists, and per-domain stats.
Sinkhole Is Coming Soon
Available on iOS and watchOS.
Coming Soon to the App Store