Mobile Application Security Testing Services

Mobile application security testing examines your Android or iOS app for vulnerabilities in data storage, API communication, authentication, and code-level security — issues that are often missed by web-focused security testing but are just as critical, especially for apps handling financial or personal data. PS INFOSEC tests both the client-side app and its backend API communication together, since mobile vulnerabilities frequently live in how the app talks to its server, not just the app itself.

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What Is Mobile Application Security Testing?

Mobile apps introduce a set of risks distinct from web applications: data stored insecurely on the device itself, sensitive information left in logs or cache, weak protection against reverse engineering, and API communication that can be intercepted or manipulated if not properly secured. A mobile-specific testing methodology, aligned with the OWASP Mobile Top 10, is needed to catch these risks — a standard web application test won’t cover device-specific attack surface.

Testing covers both the installed application itself (binary analysis, local storage, reverse-engineering resistance) and the backend APIs it communicates with, since a mobile app is rarely secure in isolation from the server infrastructure supporting it.

What We Test

Android App Penetration Testing

Testing Android-specific attack surface, including local storage, permissions, and inter-app communication

iOS App Security Testing

Testing iOS-specific attack surface, including keychain usage, local storage, and platform-specific protections

Insecure Data Storage Assessment

Checking local storage, cache, and logs for sensitive data that shouldn't persist on the device unprotected

API Communication Security Review

Testing the backend API calls the app makes, since this is frequently more exposed than the app's own code

Authentication & Session Management Testing

Testing login flows, token handling, and session security specific to mobile app patterns

Reverse Engineering & Binary Analysis Resistance

Assessing how easily the app can be decompiled or manipulated, and whether sensitive logic or secrets are exposed

Our Testing Process

Static Analysis

Analyzing the app binary for hardcoded secrets, insecure configurations, and code-level weaknesses.

Dynamic Analysis

Testing the running application's behavior, including data storage and runtime protections.

API & Backend Testing /h4>
TTesting the APIs the app communicates with independently of the client, since this is often the more exposed layer.

Why Mobile Apps Need Testing Beyond Their Web Counterpart

It’s a common assumption that if a company’s web application has been tested, its mobile app is covered by the same review — but mobile apps introduce their own attack surface that web-focused testing simply doesn’t touch: what’s stored on the device, how the app protects itself against reverse engineering, and platform-specific authentication patterns.

Testing the mobile client and its backend API together, rather than treating them as separate concerns, is what catches the vulnerabilities that live specifically in how a mobile app talks to its server — a gap that’s easy to miss when web and mobile are tested by different teams or at different times

What You Get: Deliverables

Platform-Specific Findings Report

Findings organized by Android/iOS, with proof-of-concept evidence and severity scoring

Data Storage Findings

Specific issues found in local storage, cache, or logs

API Test Results

Backend API vulnerabilities tested independently of the client app

Remediation Roadmap

Developer-actionable guidance prioritized by risk

Free Retest

Verification that fixes are effective

Industries We Serve

We’ve delivered engagements across a range of sectors, including:

Banking & Financial Services
Healthcare & Life Sciences
Information Technology & SaaS
Manufacturing
Government & Public Sector
Retail & E-Commerce
Education
Telecommunications
Logistics & Transportation
Professional Services

Frequently Asked Questions

Do you test both Android and iOS?

Yes — both platforms are tested using platform-specific methodologies, since Android and iOS have different security models, storage mechanisms, and common vulnerability patterns.

Is mobile app testing different from web app testing?

Yes — mobile apps introduce risks specific to the device itself, like insecure local storage and reverse-engineering exposure, in addition to standard API/backend risks shared with web applications. A dedicated mobile testing methodology is needed to cover both.

Do you need our app's source code to test it?

Not necessarily — testing can be performed on the compiled application (black-box/grey-box), though providing source code enables a deeper white-box review if that level of assurance is needed. This is confirmed during scoping.

Does this cover the backend APIs our mobile app uses?

Yes — API communication security review is included, since mobile app vulnerabilities frequently exist in how the app talks to its backend, not just in the app itself.

How is data storage security tested?

By examining what the app stores locally on the device — including cache, logs, and local databases — for sensitive data that isn't adequately protected, which is a common and frequently overlooked mobile-specific risk.