
Secure Your Mobile App
Your mobile app runs directly on user devices where threat actors can reverse-engineer binaries and inspect API traffic. Zero Day helps you ensure mobile code is obfuscated, local data is encrypted, and API keys remain hidden.


What We Help You Secure
We cover native iOS, Android, React Native, and Flutter mobile applications.
Binary Obfuscation & Decompilation
Strip symbols and obfuscate control flow to prevent reverse engineering.
Root & Jailbreak Detection (RASP)
Detect rooted/jailbroken devices, Frida hooking, and debugger attachment.
Secure Keychain & Storage
Audit iOS Keychain, Android Keystore, and local SQLite database encryption.

SSL Pinning & MitM Defense
Prevent proxy inspection of mobile API traffic with certificate pinning.
Authentication & Biometrics
Hardened FaceID/TouchID integration and secure session token handling.
Mobile Backend APIs
Device attestation and dynamic authorization for mobile-specific API endpoints.

Why Security Matters for Your Business
Security isn’t just technical — it protects your mobile IP and API ecosystem.
Mobile App Store Reputation
App store removal or public vulnerability reports severely damage app downloads.

Backend API Protection
Hardcoded API keys inside mobile binaries can be extracted to attack your backend directly.

User Data Confidentiality
Unencrypted local storage exposes tokens and personal data on lost or compromised devices.
How We Work With You
A clear, founder-friendly process from first conversation through launch.
01.Understand Product
We review your mobile stack (iOS/Android/React Native/Flutter) and backend API contracts.
What You Gain
The outcomes mobile founders care about — delivered before store release.

Launch With Confidence
Publish your app to major app stores knowing binaries and keys are protected.

Prevent Key Exfiltration
Eliminate hardcoded API secrets that hackers steal from APKs and IPAs.

Block Traffic Inspection
Prevent attackers from intercepting user data over public Wi-Fi.

Comply with MASVS Guidelines
Achieve OWASP Mobile Application Security Verification Standard (MASVS) compliance.

Protect Session Security
Keep user sessions safe even if a device is stolen or lost.

Maintain Store Rating
Avoid security flaws that lead to negative reviews or store takedown notices.
Questions Mobile Founders Ask
Everything you need to know about our pre-launch security audits, multi-tenant isolation, and penetration testing process.
Do you test React Native and Flutter apps as well as native Swift/Kotlin?
Yes! We test native iOS/Android apps as well as cross-platform React Native, Flutter, and Unity builds.
Can attackers really reverse-engineer our mobile app binary?
Will SSL pinning cause problems when our TLS certificate renews?


Protect Your Product Before Launch
With Expert Security.
Our cybersecurity team will conduct a deep manual assessment of your architecture, uncover vulnerabilities, and give you actionable defense.