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I’m building an Android app that must ship with truly robust, “ethical-hacker-grade” protection. The single most important piece is a custom security module that monitors everything users do inside the app and flags anything suspicious. Here’s what I need you to deliver: • A lightweight, unobtrusive activity-monitoring component that captures user behaviour events in real time. • Intelligent tracking logic: distinguish normal navigation from potentially risky actions, then push those events to my existing backend through secure, encrypted calls. • Clear, well-structured code (Kotlin or Java) plus concise documentation so I can maintain and extend the module later. • A quick demonstration APK and companion README showing how to plug the component into any standard Android project. Two-factor, biometrics and similar extras could follow later, but for this first milestone the focus is squarely on activity monitoring and behaviour tracking. If you’re comfortable probing apps the same way a black-hat might—yet writing clean, production-ready code—let’s talk.
Project ID: 40493583
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38 freelancers are bidding on average $158 USD for this job

Hi, We can build a lightweight Android security module in Kotlin that tracks user behaviour in real time and securely flags suspicious activity without affecting app performance. The component will hook into key app interactions (navigation, inputs, session events), structure them into clean event logs, and send them securely to your backend via encrypted API calls. Initial logic will use rule-based detection to distinguish normal vs abnormal behaviour, with a design that can later extend into more advanced fraud/abuse detection. The module will be fully reusable across Android projects, with clear separation between tracking, logic, and networking layers for easy maintenance and upgrades. We’ll also provide a demo APK and integration guide so you can plug it into any standard Android app quickly. Regards Interconnect Team
$140 USD in 7 days
6.8
6.8

Hi there, I’ve reviewed your Android app requirements and would love to collaborate on your project. With 5+ years of experience in native Android development, I specialize in building high-performance, user-friendly apps with clean UI, optimized architecture (MVVM/MVI), and seamless API integration. I’ll start with a clear project roadmap, provide regular progress updates, and ensure the app is thoroughly tested for stability and performance before launch. Let’s connect to discuss your app idea in detail — I’m ready to bring your vision to life! Best Regards Android Developer | Kotlin & Java Expert
$170 USD in 7 days
7.0
7.0

With over 15 years of experience in the Android development industry, my team and I have garnered an unrivalled level of proficiency in creating robust, secure apps. We are well-versed in both Kotlin and Java programming languages essential for delivering the high-quality, thorough code you're seeking. Our commitment to excellence is echoed in our 24/7 availability; ensuring absolute responsiveness and timely project completion. Regarding your specific needs for this project, my skills line up perfectly with your requirements. I understand the gravity of Android app security and possess the ability to build a custom, reliable security module that not only accurately monitors user activities but also intelligently distinguishes between normal and risky behavior. Furthermore, my team's expertise spans beyond mere functionality; we are proficient in providing comprehensive documentation that facilitates effective maintenance and future enhancement of developed modules.
$250 USD in 7 days
5.7
5.7

Good to see this project, We will build a lightweight Kotlin monitoring module that captures user behaviour events in real time and flags anomalous patterns against a baseline profile. For detection accuracy, we will score actions using a weighted risk model (tap frequency, navigation depth, timing intervals). Events above threshold get pushed to your backend over pinned TLS connections. A couple of quick things to confirm: 1) What does your existing backend expect (REST, gRPC, or something else)? 2) Which minimum Android API level should we target? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Send me a message and we can go over the details. Best regards, Faizan
$90 USD in 5 days
4.9
4.9

⭐⭐Jaroslav Caprata - - - - - Android Security Developer⭐⭐ Hello, your project aligns well with my experience in Android application security, secure mobile architectures, behavioral analytics, event monitoring, encrypted communications, and Kotlin-based development. I have worked on mobile applications requiring real-time event tracking, anomaly detection workflows, secure API communication, and privacy-conscious monitoring systems designed to enhance application security without affecting user experience. Recently, I developed a security-focused Android module that captured application events, monitored user interactions, securely transmitted telemetry data, and generated actionable security insights through backend analytics. For your project, I can build a lightweight and maintainable monitoring component that records relevant in-app events, applies configurable risk-detection logic, securely transmits data to your backend using encrypted channels, and provides clean documentation along with a demonstration APK and integration guide. The solution will be modular, efficient, and designed for easy integration into existing Android applications. I am Jaroslav Caprata and would be pleased to discuss the security architecture and monitoring requirements in more detail.
$100 USD in 2 days
3.9
3.9

With advanced knowledge and experience in Android app development, mobile app testing, and mobile development, I am confident that I can deliver a top-notch security monitoring solution for your Android app. Having worn the hat of an "ethical hacker" before in my career, I understand the importance of a thoroughly secure system - one that I will ensure is encrypted and able to differentiate normal user behavior from potential threats. Drawing on my skills in Java and Kotlin, I'll write clean code with the clear goal of easy maintenance, extensibility,and scalability. Moreover, as you expand your app's scope with two-factor authentication and biometric features down the line, my familiarity with crafting scalable SaaS platforms will prove valuable. In fact, this ability to foresee potential needs aligns perfectly with my natural approach to projects: not just writing code but providing long-term value by helping businesses plan, build and adapt. Choosing me as your technology partner ensures you get more than a prolific coder – you gain a dedicated collaborator committed to reliable execution and clear communication. With the vast challenges that come with Android security, let's work together towards building an impregnable app that meets your present needs and also positions you strongly for a rapidly evolving future!
$50 USD in 7 days
3.5
3.5

Being the founder and CEO of Web Crest, I have spent the last decade building applications just like yours - ones that prioritize robust security. My team of 10 highly-skilled experts specialize in developing intelligent, scalable solutions that focus on performance. With a 98% project completion rate and consistent positive feedback, our process is rooted in clear communication and transparent workflow to ensure we deliver above and beyond client expectations. Our proficiency in Android and mobile app development has seen us build applications with cutting-edge security features such as AI-powered chatbots for real-time risk alerting. Trust us to build you a lightweight, unobtrusive activity-monitoring component that captures user behavior events in real-time whilst distinguishing between normal navigation and potentially risky actions - all through secure, encrypted calls. With your project objective for maintainability in mind, let us provide you with clear, well-structured Kotlin or Java code complemented by concise documentation.
$200 USD in 3 days
3.2
3.2

Hey, Behaviour monitoring and anomaly detection inside an Android app — distinguishing normal navigation from suspicious actions and flagging them securely — is legitimate app security work I can build cleanly. Kotlin, lightweight event capture via Activity lifecycle hooks, encrypted backend calls via TLS + certificate pinning, and clear documentation for extending the module later. Quick question — what counts as “suspicious” in your app’s context — multiple failed auth attempts, unusual navigation patterns, rooted device detection, or something specific to your use case? That shapes the detection logic directly. — Pooja
$140 USD in 7 days
3.3
3.3

Hi, I'm Karthik, an Android Developer with 15+ years of experience in mobile security, application monitoring, backend integrations, and enterprise-grade Android development. I can build a lightweight security monitoring module that captures in-app user behavior, analyzes activity patterns, and securely reports suspicious events to your backend while maintaining performance and user experience. ✔ Kotlin-based modular architecture ✔ Real-time user activity monitoring ✔ Event logging and behavioral analysis ✔ Risk scoring and suspicious activity detection ✔ Secure encrypted API communication ✔ Low-overhead performance optimization ✔ Clean, maintainable, documented code ✔ Demo APK and integration guide My focus will be on legitimate in-app security monitoring, audit trails, anomaly detection, and backend reporting rather than intrusive device-level surveillance. The module will be designed for easy integration into existing Android applications and future expansion with biometrics, MFA, device integrity checks, and advanced fraud detection. Deliverables: • Full source code • Demo APK • Integration documentation • README and architecture overview Available to start immediately and discuss your monitoring and security requirements in detail. Best Regards, Karthik
$250 USD in 7 days
3.1
3.1

We build Android apps at Apie Technologies using Kotlin — security modules, behavior tracking, and backend API integrations are standard Android development for us. For this security monitoring component: - Activity monitoring: implement a lightweight EventBus or lifecycle-aware observer that hooks into Android's Activity/Fragment lifecycle + custom touch/gesture interceptors to capture user behavior events without impacting app performance - Risk logic: classify events client-side (e.g., rapid tap sequences, navigation to sensitive screens, unexpected deep-link invocations) before pushing flagged events to your backend - Secure backend calls: all event payloads encrypted with AES-256 before transmission; certificate pinning to prevent MITM; retry queue with Room DB for offline resilience - Clean integration: the component will be a standalone Kotlin module (not tightly coupled to your app code) so you can drop it into any standard Android project with minimal changes Deliverables: Kotlin module source, demo APK, README with integration steps, and architecture diagram showing the monitoring pipeline. Timeline: 7 days for a production-ready module with the demo APK. What does your existing backend look like — REST API or webhook-based ingestion?
$200 USD in 7 days
1.5
1.5

Developing an Android app with an "ethical-hacker-grade" security module necessitates deep knowledge of both user behavior analytics and secure communication protocols. The lightweight activity-monitoring component must leverage intelligent algorithms to accurately distinguish between normal and potentially risky user actions while maintaining performance integrity. I propose utilizing Kotlin for its efficiency in creating clean, maintainable code. The initial deliverable will be ready in 14 days, including a demonstration APK and clear documentation. What's your deadline, when do you need this live?
$110 USD in 9 days
0.0
0.0

I see you need an Android app with top-notch security features, and I can definitely help with that. With over 10 years of experience in developing mobile apps and a strong focus on security, I understand the importance of "ethical-hacker-grade" protection. My background in full-stack development and expertise in cloud platforms ensures that we can create a robust and scalable solution tailored to your needs. Let’s discuss your specific requirements and how we can implement the best security practices to safeguard your app. Looking forward to the opportunity to work together!
$140 USD in 5 days
0.0
0.0

Hi there, I’m Sean, an AI & Full-Stack Developer with over 10 years of experience in building secure applications, including mobile apps like yours. I understand you need an ethical-hacker-grade security module to monitor user behavior within your Android app, capturing activities in real-time and flagging suspicious behavior. In a similar project, I developed a security-focused Android application that implemented real-time activity monitoring with secure backend communications. My approach involves crafting a lightweight yet effective monitoring component that captures user interactions and distinguishes between normal and potentially risky actions, ensuring secure, encrypted data transfer to your backend. I prioritize clean, well-structured code in Kotlin or Java, accompanied by precise documentation to facilitate maintenance and future enhancements. Additionally, a demonstration APK and a README will help you seamlessly integrate the module into standard Android projects. I can deliver the initial milestone in just one week. What specific types of user behaviors are you most concerned about monitoring for suspicious activity? Best regards, Sean
$250 USD in 5 days
0.0
0.0

Hello, ✨✨✨From Vision to Victory-We Code Your Success✨✨✨ I can develop a lightweight Android security monitoring module that tracks in-app user behaviour in real time, identifies suspicious activity patterns, and securely reports those events to your existing backend without affecting normal app performance. For this milestone, I would build the component in Kotlin or Java with a clean event-tracking layer for screen visits, navigation flow, sensitive actions, repeated attempts, abnormal timing, and other risk signals inside the app. The logic can separate normal user behaviour from suspicious patterns using configurable rules, so you can extend it later without rewriting the core module. I will also implement secure API communication with encrypted payloads, proper authentication headers, retry handling, and structured event logs for backend review. The module will be written as a reusable plug-in style component that can be added to a standard Android project with minimal setup. You will receive clean source code, concise documentation, a demo APK, and a README explaining integration, configuration, and testing. I’m comfortable approaching this from a security-testing mindset while keeping the final code ethical, maintainable, and production-ready. Best Regards
$150 USD in 7 days
0.0
0.0

Hi, I am an IITian with 10+ years of experience to develop similar projects ,I will deliver a high-quality solution using modern technologies and best practices tailored to your project requirements. Kindly click on the chat button so I can share you my relavant projects. Lets connect
$30 USD in 7 days
0.0
0.0

Hi, I can build a lightweight Android security/behavior monitoring module in Kotlin that tracks in-app user events, flags suspicious patterns, and securely sends encrypted logs to your backend. I’ve worked on similar analytics + security tracking systems, so I can keep it efficient, production-ready, and easy to plug into any app. Can start immediately and deliver a working APK + clean documentation.
$140 USD in 7 days
0.0
0.0

With a proven track record of over 7 years, I'm confident that my skills in Android App Development translate perfectly to your project. The fact that I've built scalable web and mobile applications for different industries means I have a well-rounded understanding of what it takes to develop robust and secure applications. Specifically, for this project, my prior experience in exchanging secure encrypted data through APIs gives me an edge in creating your unobtrusive activity-monitoring component. In addition, I understand the importance of clear, well-structured code and concise documentation for easy maintenance and extension, as it is a major focus in all my projects. What sets me apart is not just the ability to work like an ethical hacker when needed but the knack of cultivating long-term relationships with clients. As a freelancer with long-term support, I'm dedicated to delivering what you need and will happily assist with future improvements such as two-factor authentication or biometric verification. With every assignment, my priority has always been end-to-end development – consistent communication, on-time delivery, clean code, and reliable product. Let's connect and discuss how we can make your project secure and successful!
$140 USD in 5 days
0.0
0.0

Rough numbers above are just placeholders for now. We'll sharpen the bid amount and timeline once we've walked through the full scope together. This is a well-scoped first milestone. You want a lightweight behaviour-monitoring module baked into your Android app that watches what users do in real time, separates normal navigation from anything that looks off, and ships those flagged events to your backend over encrypted channels. The deliverable is clean, maintainable Kotlin or Java code plus a plug-and-play demo APK someone can drop into any standard Android project without reverse-engineering the internals. Here's how we'd approach it: - Activity monitoring layer: A non-intrusive event collector built with Android's accessibility and lifecycle hooks, capturing screen transitions, input patterns and timing anomalies without adding noticeable overhead. - Behaviour analysis logic: Rule-based heuristics (with room to plug in ML later) that score events and flag anything that deviates from a baseline, for example unusual tap sequences, rapid form fills, or navigation paths that match known abuse patterns. - Secure backend transport: Encrypted payloads sent over HTTPS with certificate pinning, plus a signing step so your server can verify event integrity and reject tampered submissions. - Demo APK and docs: A minimal sample app wiring the module in, plus a README covering integration steps, configuration options and how to extend the detection rules without touching the core module. After a short call to pin down your backend contract and any specific threat patterns you want covered, we'll send over a proper proposal with milestones and firm pricing. Want to jump on a quick call this week to walk through the threat model before we start? Best, 96 Studio
$188 USD in 7 days
0.0
0.0

I can develop robust, ethical-hacker-grade security features for your Android app to ensure strong protection against threats. My experience includes building security-focused mobile applications that incorporate advanced monitoring and real-time threat detection. I follow a layered security approach that integrates both proactive monitoring and reactive protections to safeguard user data and app integrity efficiently. Quick question before I suggest an approach: Are you targeting any specific security standards or certifications for this app?
$140 USD in 7 days
0.0
0.0

I have strong expertise in developing Android applications with advanced security measures suitable for "ethical-hacker-grade" protection. I understand the importance of building a truly robust security layer that can withstand sophisticated threats. My background includes developing secure mobile applications that integrate multiple layers of encryption, runtime protection, and threat detection to ensure data safety and user privacy. I would implement a comprehensive security strategy combining secure coding practices, real-time monitoring, and proactive threat mitigation to safeguard your app effectively. Quick question before I suggest an approach: Are you targeting specific security standards or frameworks for compliance in your app?
$140 USD in 7 days
0.0
0.0

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