Upload your app, pick your defenses and download a hardened build in minutes. No SDK, no code changes, no plugins.
Detects and blocks any modification or repackaging of your app
Get a free trial account and protect your APK with all premium features for 2 days.
KovSec never just repackages your app. It rebuilds how your code looks and how it runs, in two stages that stack on top of each other.
Rewrites your compiled Java so the logic can no longer be followed and encrypts every string and number inside it. It is the first layer, applied before the DEX is virtualized.
Original function
int price(User u) {
if (u.isPremium()) return 0;
return 100;
}
After Control Flow
int a(c u){int s=0x3F^k[2];for(;;){switch(s){case 824:s=u.b()?0x5B:0x07;break;case 0x5B:return dec(0x1A2);}}}
Receives the Java function already obfuscated by Control Flow, then compiles it into bytecode that only the KovSec virtual machine (VM) can run.
input
int a(c u){switch(s)…}
KovSec VM
push r0 · xor · jmp · dec · ret
Anti-Hook
Detects and prevents hooking frameworks like Frida, Xposed, LSPosed
Anti-Debug
Prevents dynamic debugging and debugger analysis (IDA Pro, GDB)
Root Detection
Identifies rooted/jailbroken devices at runtime
Anti-Emulator
Detects emulated environments like BlueStacks, Nox, LDPlayer
VM Integrity
Protects the VM against tampering and memory patches
Anti DEX Injection
Detects when DEX code is loaded directly into memory without a valid APK, a technique used by attackers and tools like Game Guardian to execute code without leaving traces on disk.
ADB Guard
Blocks access to your app via ADB, preventing attackers with USB or remote connection from executing commands on the device and manipulating your application.
Anti Injection
Monitors native libraries loaded in your app process to detect if someone injected malicious libraries attempting to intercept your app behavior.
SSL Pinning
Detects interception certificates installed by tools like Burp Suite or Charles, used to decrypt SSL traffic between your app and servers.
Anti Screen Share
Blocks attempts to record or share your app screen, protecting sensitive visual information against capture apps and malicious accessibility services.
Anti Keylogger
Detects keyloggers and accessibility services that attempt to record what the user types inside your app, stealing passwords and personal data.
Fake GPS Shield
Identifies when the device GPS location is being spoofed with mock location apps, preventing your app from being deceived about the user's real position.
VPN / MITM Block
Detects VPN connections and proxies that could be intercepting your app's network traffic to modify requests or steal data in transit.
DELIVERY
You get back the same APK, AAB or .JAR with the protection applied and a valid signature. No extra steps: download and install, or upload to Google Play.
Android apps (APK and Google Play AAB) and Kotlin/Java bytecode in .JAR files. One engine, several layers.
APK — Android apps
Control Flow, DEX virtualization, anti-hook, anti-debug, root detection and anti-tamper.
AAB — Google Play bundles
Same protection plus a valid signed bundle ready to upload to the Play Console.
.JAR — Kotlin & Java code
Control flow flattening, encrypted strings and a Java VM interpreter for desktop apps, plugins and services.
Kotlin & Java classes
Class, method and field obfuscation with dead code, numbers and debug metadata removed.
Unlimited protected builds. No hidden limits. Pick a plan, activate it over Telegram and protect your first app today.
Monthly
Quarterly
+15JAR Protection
.JARJava / Kotlin bytecode: desktop apps, plugins, services and libraries.
Now also protects .JAR
Java and Kotlin bytecode: control flow flattening, encrypted strings and a Java VM interpreter. Decompile the .jar and there is nothing readable left.
Everything about protecting APK, AAB and Kotlin/Java .JAR files
First we rewrite the Java bytecode with Control Flow and encrypt its strings and constants. Then the DEX is virtualized and native layers are added: anti-hook, anti-debug, anti-tamper, root detection and anti-emulator. The result is a signed APK or AAB ready to install.
Yes. The .JAR plan flattens the control flow, encrypts strings and adds a VM interpreter written in Java. The jar keeps working the same way but is unreadable after decompiling. It does not include the Android layers.
Anti-hook detects instrumentation frameworks such as Frida, Xposed or LSPosed. If someone tries to hook into your process to read memory or modify methods, the app shuts down before exposing anything.
Yes. We protect the AAB and sign it with your upload key. The protection travels inside the code and the native libraries, so it stays active after Google re-signs it for distribution.
Between 1 and 5 minutes depending on size. You only need the APK, AAB or .JAR and your keystore. Activation is instant after paying via Telegram.
Have questions? Our team is ready to help you.