ADFastDNS – DNS Proxy, Ad Blocker & Advanced Threat Detection
The only iOS app combining blazing-fast DNS acceleration, system-wide ad blocking, and a professional-grade network threat detection engine all processed entirely on your device. No accounts. No logs. No compromise.
Host Intrusion Detection System (HIDS)
-ADFastDNS goes far beyond DNS filtering with a multi-layer threat detection engine that analyses your network traffic in real time without decrypting or inspecting private content.
-Beacon Guard builds a persistent memory of connection patterns across sessions, detecting malware and spyware that communicate with remote servers at regular intervals even across network changes and IP rotations. A technique used by sophisticated implants that evades every other consumer iOS security tool.
-TLS Anomaly Detection scores every encrypted connection across fifteen independent indicators, correlating the TLS handshake with the server's response to identify suspicious negotiation patterns, cipher anomalies, and cryptographic fingerprints inconsistent with legitimate iOS apps.
-Hello Packet Anomaly Detection uses JA4 fingerprinting , a professional-grade cryptographic identification technique, to classify the TLS stack behind every connection and block known malicious fingerprints before any data is transmitted.
-Anti-Malware & Anti-Spyware protection with comprehensive blocking lists to defend against sophisticated threats.
-IP & Geo Firewall — blacklist any IP or set blocking rules per country, just like a professional network firewall.
-TLS-SNI Validation blocks connections where the TLS hostname mismatches the destination IP, stopping domain fronting and SNI spoofing attacks.
-DNS Tunnel Protection prevents attackers from using DNS queries to exfiltrate data or establish covert command-and-control channels.
-DNS Rebinding Protection stops malicious websites from using your browser to attack local devices on your network.
- DNS Exfiltration protection, detecting any connections attempting to smuggle data through malformed DNS queries, bypassing HTTP tracking detection
-JA4 Blocklist — industry-standard TLS fingerprint blocking updated continuously against known malware frameworks.
Advanced Anti-DPI Engine
Powerful censorship resistance built for the most restrictive networks.
Hello Packet Fragmentation intelligently splits TLS ClientHello packets at both TCP and TLS level to defeat SNI-based blocking. Enhanced obfuscation techniques work seamlessly alongside all DoH and filtering features.
Core Features
-DNS over HTTPS & DNS over QUIC (HTTP/3)
-Cloudflare, Google, AdGuard, NextDNS or any custom DoH endpoint
-System-wide ad & tracker blocking with your favourite filter lists
-On-device DNS cache for instant responses
-Per-domain HTTPS proxy routing with Fast Bypass
-WiFi whitelist exclude trusted SSIDs automatically
-Local DNS resolver works like a device-level hosts file
-Real-time statistics blocked queries, top domains, threat events
-iCloud sync of all rules and settings
-Zero logging · Zero data collection · Zero external servers
- Extend ADFastDNS filtering to any device on your network by directing its SOCKS5 proxy to your ADFastDNS device
Why ADFastDNS?
Unlike traditional VPNs that slow you down and drain your battery, ADFastDNS works at the DNS and transport layer, faster, lighter, and virtually invisible. The same threat detection capabilities found in enterprise network security tools, rebuilt from the ground up for the iOS sandbox.
Try free for 7 days — then unlock forever with a one-time purchase.
Download ADFastDNS and take back control of your network.
I was looking for something that would block direct IP connections to any IP address that didn’t result from a valid DNS response. This app does exactly that. The anti-DPI and TLS Client Hello Fragmentation also totally bypass video throttling on both of my carriers. HIDS works exactly as expected too. My only complaints are as follows:1. Statistics are pretty limited. I can see how many Direct IP blocks there have been, but I can’t see the IP addresses. The statistics reset whenever you restart the proxy, which is a bit inconvenient. It’d be nice if they could carry over across sessions. 2. DNS cache does carry over between sessions. If you enable Direct IP blocking, it’ll basically cut off all most internet activity until the TTL of prior DNS records expire. But you can manually clear the cache though so it’s not a big deal. Anyway I love the app. It’s in a league of its own. I hope y’all will consider making a Mac app in the future. Also this a big ask but it’d be really cool if you could add a socks5 proxy server similar to PairVPN where devices connected to the phone hotspot are routed through the proxy and their traffic is filtered by the the anti-DPI and HIDS system.
Developer Response
Dear valuable customer,Thank you so much for your kind words and for taking the time to share your experience with us! We are thrilled to hear that the app is meeting your expectation, especially regarding the anti-DPI features and Direct IP blocking. Knowing that the app is "in a league of its own" for you means a lot to our team.We also want to thank you for your constructive feedback. We take user suggestions very seriously as we continuously work to improve the experience:• Statistics & Persistence: We hear you on the need for more detailed IP logging and session persistence. We are currently looking into ways to expose more statistics data without compromising performance and energy usage.Regarding your request for a Mac version, we have some great news! The app is already available on the Mac App Store for all Apple Silicon (M1/M2/M3) devices. You can download it today to enjoy the same level of protection on your computer.Thank you again for your support. If you have any more ideas or questions, please don’t hesitate to reach out on our support channel adfastdns@libero.it
Effortless Ad-Blocking Across All Devices!
delorenc
ADFastDNS blocks unwanted ads seamlessly on my phone, computer, and iPad – browsing and streaming are now ad-free and faster. The widget is genius for quick on/off toggles. Simple setup, no battery drain, total privacy win. Must-have – 5 stars!
Nothing but Perfect & Outstanding
KrzyChopstix
[2026.04.14] Avg-Rating: 98.7.Didn‘t try out new features but Statistics finally working again, though a nightmare to navigate with Apple VoiceOver; having issues with external blocklist + mal/spy download but will continue testing.[2026.02.15] Avg-Rating: 97.6. Have never rated an App this high before; surprised it doesn’t cost more for its simply designed eefectiveness… I am not always connected to any of my VPNs so this is a super easy setup when/where VPNs not necessary yet retaining DNS servers/profiles (HTTPS). Still having issues with the statistics and scroll boundary with iOS VoiceOver.[2026.01.31] Avg-Rating: 97.2. Not fond of biometrics but cannot find the option and denying view access.[2026.01.26] Avg-Rating: 97.2. v3.0 update is a tremendous improvement with many features, some I may not quite understand but explanations are supplied, thanks; and still lightweight as always.[2026.01.15] Avg-Rating: 96.1 Fully blind user and after using for some time, this just is a great powerful tool..! Not sure if intentional design or not but one little annoyance is lack of go-back button in the view all blocked listing; I can use the screen gesture (but really dislike to unless necessary.)Purpose: 99/100Features: 98/100Usability: 99/100Accessibility: 97/100Support: ---/100Pricing: 100/100
Developer Response
Dear valued customer, I’m delighted you’re enjoying your journey with the app. Please stay tuned for many exciting new features coming soon! We take your constructive feedback very seriously and will work to improve the user experience as you’ve reported.
You request, we hear, and we implement!
Socks 5 Server in the main app
- Extend ADFastDNS filtering to any device on your network by directing its SOCKS5 proxy to your ADFastDNS device
HIDS:
- The intrusion detection system now includes DNS Exfiltration protection, detecting any connections attempting to smuggle data through malformed DNS queries, bypassing HTTP tracking detection
Statistics:
- We’ve added location statistics for all transparent proxy connections, featuring a stunning world globe animation.
Bug fixes and performance enhancements.
Version 4.2
The developer, Raffaele De Lorenzo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Raffaele De Lorenzo
Size
28.3 MB
Category
Utilities
Compatibility
Requires iOS 17.6 or later.
iPhone Requires iOS 17.6 or later.
iPad Requires iPadOS 17.6 or later.
Mac Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.