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Mobile Application Testing

Mobile testing that looks beyond the APK or IPA to the full client, device, and API trust model

We assess local storage, transport behavior, authentication handling, jailbreak or root assumptions, and the server-side controls that should hold even when the client is hostile.

What teams usually value in this service

Client and API trust-model review
Local storage and auth handling analysis
Findings tied to account and data risk

What is covered

  • Authentication, token storage, and session handling on-device
  • Local storage of sensitive data and cached application state
  • Certificate pinning, transport security, and client-side trust assumptions
  • Mobile-to-API interactions and hidden privileged behavior
  • Tamper resistance expectations and server-side enforcement gaps

Who this service is for

  • Teams shipping customer-facing mobile products with sensitive user workflows
  • Organizations handling payments, PII, healthcare, or regulated data on mobile
  • Products relying on mobile clients for privileged actions or verification steps

Common attack paths and issues tested

Weak client trust assumptions

We test where the backend assumes the app, device, or workflow is trustworthy when it should enforce those protections server-side.

Token and session exposure

Stored credentials, reusable tokens, and session artifacts are reviewed for abuse risk on compromised or inspected devices.

Sensitive data leakage through local storage or logs

We validate how the app handles secrets, PII, cached responses, and debug output at rest on the device.

What clients receive

  • Mobile-specific findings tied to device and API behavior
  • Clear separation of client-side and server-side remediation needs
  • Practical guidance for engineering and mobile teams
  • Retest support after fixes are deployed

Engagement process

  1. 1Review app flows, auth model, device assumptions, and API dependencies
  2. 2Inspect storage, transport, and client behavior
  3. 3Validate exploitability across app and backend boundaries
  4. 4Deliver findings, remediation guidance, and retest

Related resources

Articles that help teams evaluate and prepare for this service

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Frequently asked questions

Do you test both the mobile client and its APIs?

Yes. Effective mobile testing requires both. Many mobile issues only matter because of how the backend responds.

Can you work from a test build?

Yes. A test build, debug build, or pre-release build often makes coverage better and reduces unnecessary friction.