iOS Security SDKs & Audits for Production Teams | Sentinel Den

Skip to content<br>) because many of the<br>individual pages already wrap their bodies in their own<br>; nesting inside would be invalid HTML.<br>tabindex="-1" lets the skip link transfer focus here on<br>activation without making it tab-reachable on its own. --> iOS Security · Audits & Runtime Defense<br>Drop-in iOS security toolingfor apps that can't fail.

iOS security audits, penetration testing, and Swift runtime-defense SDKs for fintech, wallets, health, and credential-class apps where a breach is a regulator event.

Static binary review, dynamic runtime analysis, full Swift/Objective-C codebase audits, and signed Swift frameworks for jailbreak, debugger, and tamper detection.

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Top 3% · Toptal-vetted<br>Independent · Vancouver, BC<br>12 SDKs · 1 macOS app · all signed<br>New SentinelDen Studio · desktop iOS auditing for macOS · free during beta

$ sentinel scan --target MyApp.app/MyApp → resolving Mach-O · arm64 · iOS 17.4 [ scan ] 4 segments · 22 sections · 312 imports ✓ DYLD image graph clean (62/62 verified) ✓ ptrace + sysctl: PT_DENY_ATTACH armed ! DYLD_INSERT_LIBRARIES env present (FridaGadget.dylib) ✗ Frida fingerprint detected: 3 matches @ 0x10027c000 → writing report → audit-2026-05-07.json complete · 7 findings · 1 critical · 35ms

Choose your path<br>Evaluate Try free for 30 days<br>Sandbox license for any SDK. No credit card. Full Indie-tier capabilities.<br>Start the sandbox<br>Buy direct Self-serve checkout<br>Per-SDK and bundle pricing across Indie / Professional / Enterprise. Stripe-hosted.<br>See pricing<br>Design partner Pilot program, 50% off year one<br>Limited slots for teams willing to ship feedback in exchange for steep first-year pricing.<br>Apply for a pilot<br>Custom Audit or enterprise engagement<br>Threat modeling, full codebase reviews, MASVS evidence packages, or unlimited-bundle deals.<br>Contact us

30+<br>jailbreak primitives detected<br>checkra1n · palera1n · Dopamine · rootless

cold-path overhead<br>measured on iPhone 12 mini

PII collected, ever<br>fully on-device evaluation

third-party dependencies<br>pure Swift, signed .xcframework

Built for teams shipping iOS to<br>FinTech & Payments<br>Crypto & Web3<br>Healthcare & PHI<br>Gaming & DRM<br>GovTech & Defense<br>Identity & Auth

MK<br>Who's behind this<br>Muhammad Khan , independent iOS security researcher. Ten-plus years of native engineering, Toptal Top 3% vetted, Vancouver-based. Solo-founded; everything you read on this site is written, signed, and shipped by the same person who answers your support email. Read the full bio &rarr;

Four engagement shapes covering everything from a fast binary triage to multi-week threat-modeling for production-critical apps.

Tier 1 · 5–7 days<br>Static Architecture Scan<br>A comprehensive review of your application binary. We identify exposed API keys, plaintext secrets in Info.plist, and basic cryptographic misconfigurations before they hit production.

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Tier 2 · 2–3 weeks<br>Deep Dive & Runtime Analysis<br>Advanced dynamic analysis identifying weaknesses in jailbreak defenses, debugger detection, and network traffic interception vulnerabilities across the execution lifecycle.

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Tier 3 · 3–6 weeks<br>Full Codebase Review<br>A complete structural audit of your Swift or Objective-C source code to ensure compliance, secure data handling, and robust intellectual property protection.

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Tier 4 · scoped<br>Secure Architecture & Threat Modeling<br>Proactive defense design for new features or complete refactors. We map trust boundaries and design zero-knowledge, hardware-backed storage policies using the Secure Enclave before a single line of code is written.

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Tier 5 · 1–3 weeks<br>Compliance & MASVS Evidence Package<br>Map your app to OWASP MASVS Level 1 or Level 2 control identifiers, then produce an auditor-ready evidence package. Supports SOC 2, PCI-DSS, HIPAA, and regulated-industry vendor reviews; each finding cites the MASVS control it satisfies or violates.

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Tier 6 · monthly<br>Continuous Audit Retainer<br>An ongoing engagement, not a one-off scan. Pre-submission review of each App Store release, dependency-drift watch with advisory triage, quarterly threat-model refresh, and one engineering office hour per month. For teams shipping every two weeks.

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Twelve hardened Swift libraries you can integrate in an afternoon. Pick one, deploy the full suite for layered defense, or grab a curated bundle pack below for the most common defense pairings.

The portfolio expanded from 7 to 12 SDKs in 2026 because three engineering shifts happened simultaneously: on-device AI moved out of research and into shipping apps (PresenceKit, IntentKit, AnomalyKit), Apple's Required Reason API enforcement made privacy review a release-blocker for any non-trivial app (ManifestGuard, RedactKit), and behavioral-biometric defense became table-stakes for credential-class iOS apps where Face ID is a...