ADFastDNS

ADFastDNS – DNS Proxy, Ad Blocker & Advanced Threat Detection

The only iOS app combining blazing-fast DNS acceleration, system-wide ad blocking, and professional-grade network threat detection processed 100% on your device. No accounts. No logs. No compromise.

Security shouldn't be complex. Choose your protection level in one tap right from your Home screen:

Minimum: DNS filtering with curated blocklists.

Medium: Adds Anti-DPI to defeat deep packet inspection.

Max: Adds full on-device intrusion detection (HIDS) with JA4 fingerprinting.
Prefer full control? Custom settings remain fully accessible for advanced users.

Host Intrusion Detection System (HIDS)

ADFastDNS analyzes network traffic in real time without decrypting private content:

Beacon Guard: Identifies malware and spyware by detecting persistent connection patterns that evade standard consumer tools.

TLS & Hello Packet Anomaly Detection: Uses professional-grade JA4 fingerprinting to score encrypted connections and block malicious payloads before data transmits.

IP & Geo Firewall: Blacklist specific IPs or set blocking rules per country.

Advanced Exploitation Defense: Native protection against DNS Tunneling, DNS Rebinding, SNI Spoofing, and DNS Data Exfiltration.

Advanced Anti-DPI Engine

Packet Fragmentation: Intelligently splits TLS ClientHello packets.

Adaptive Connection Tuning: Automatically learns whether packet splitting helps or hurts reliability per connection, adapting locally without external servers.

Traffic Shaping: Mimics natural timing patterns to make proxy traffic statistically harder to detect and throttle.

Core Features

Next-Gen Protocols: Supports DNS over HTTPS (DoH) & DNS over QUIC (DoQ / HTTP/3).

Custom DNSoH Endpoints: Compatible with Cloudflare, Google, AdGuard, NextDNS, or any custom URL. 

System-Wide Blocking: Stop ads and trackers using your favorite filter lists.

Performance Optimization: On-device DNS cache for instant responses, per-domain proxy routing, and automatic Wi-Fi whitelisting.

Network Tools: Local DNS resolver (hosts file), QUIC Connection Migration (RFC 9000), and real-time threat statistics.

Privacy & Ecosystem: Configure 2 DNSoH endpoints  working together for maximum privacy. Zero data collection, and the ability to extend filtering to other network devices via SOCKS5 proxy. 

Why ADFastDNS?

Unlike heavy VPNs that drain your battery, ADFastDNS operates seamlessly at the transport layer making it faster, lighter, and virtually invisible. It brings enterprise-grade network security straight into the iOS sandbox.

Try free for 7 days, unlock forever with a one-time purchase. Take back control of your network today.