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I need an end-to-end Android finance application that is bullet-proof from a security and compliance standpoint. The core flow begins with a smooth, secure onboarding experience that performs Basic KYC checks; I’ll supply the exact compliance rules and the API endpoints you should call. Once a user is verified, the app must display real-time account balances and a transaction history that includes fast search and filter options. If you’d like to suggest richer breakdowns or export features later, I’m open, but they’re not part of the first release. Security requirements are strict: data must be encrypted at rest and in transit, all sensitive actions gated by biometric login (Android BiometricPrompt), and every meaningful event captured in an immutable audit trail. Build with modern Android standards (Kotlin + Jetpack preferred), follow OWASP Mobile guidelines, and structure the project so an external security review will pass without surprises. Deliverables • Production-ready Android app (source + signed APK) • Integration with my KYC, banking, and audit-log APIs • Unit/UI tests covering critical paths • Brief security architecture document outlining encryption, key management, and audit strategy I’ll handle Play Store distribution and provide test credentials for each partner API. Let me know your relevant experience with secure mobile apps, your proposed tech stack, and an estimated timeline to reach a testable beta.
Project ID: 40701341
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179 freelancers are bidding on average $22 USD/hour for this job

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have earned 'Expertise' level in AI development and used many AI platforms like openAI, Freepik, Antigravity, Cursor etc for App development and other AI work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
$15 USD in 40 days
9.7
9.7

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Android, Android App Development, Kotlin, Mobile App Development, PHP, iPhone, Android SDK As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen
$15 USD in 40 days
9.6
9.6

Hi, As the head of a proficient 40+ member team with 19+ years of experience, I am confident that IT Flex Solutions India can bring exceptional value to your Secure Android Finance App project. Our expertise in Mobile App Development includes Kotlin Android App Development, which ideally aligns with your tech stack preference and showcases our acumen for building secure, efficient Android apps. To address your specific needs, we've developed apps with stringent security requirements before, enforced by OWASP Mobile guidelines. We have experience in integrating complex APIs like KYC, banking, and audit-log APIs. Our practices ensure data to be encrypted at rest and in transit, key management maintained with the utmost priority,1 and all sensitive actions secured by biometric login (e.g., Android BiometricPrompt). Given the sensitive nature of finance apps, we understand that security vulnerabilities are a critical concern. Thus, our strategy will facilitate an external security review without any surprises, thereby increasing the overall resilience of your product. As you handle Play Store distribution, we remain committed to delivering well-tested source code and an APK file signed for production use. Thanks, SBM
$20 USD in 40 days
9.1
9.1

With over a decade of experience in secure mobile app development and high-scale systems, I understand your need for an end-to-end Android finance application that prioritizes security and compliance. My background in building high-security FinTech systems, including applications serving over 1 million users, directly applies to the challenges of creating a bullet-proof finance app like yours. To ensure the success of your project, I recommend implementing strict encryption protocols for data at rest and in transit, utilizing biometric login for sensitive actions, and maintaining an immutable audit trail for all significant events. My past success in developing secure Android applications proves that I can handle the level of complexity required for your project. I am eager to discuss the roadmap for your Secure Android Finance App further. Please feel free to reach out to me directly to schedule a call and explore how we can bring your vision to life.
$20 USD in 15 days
9.1
9.1

Hi there, I understand the importance of creating a secure and compliant Android finance app. I will develop an end-to-end solution that ensures a smooth and secure onboarding experience, including basic KYC checks. I will integrate the provided API endpoints and compliance rules to ensure everything is handled correctly. For the development, I will use Kotlin and the latest Android SDK to build a robust and user-friendly application. Security will be a top priority, and I will implement best practices such as data encryption, secure storage, and regular security audits to keep the app bullet-proof. Let's work together to create a finance app that not only meets but exceeds your expectations in terms of security and functionality. Best Regards, Khorshed Alam, RS Software
$18 USD in 40 days
9.5
9.5

Hello, I can help structure this secure Android finance application around Kotlin and Jetpack, with biometric protection through Android BiometricPrompt, encrypted data in transit and at rest, OWASP-aligned implementation, and carefully isolated KYC, banking, and audit-log API integrations. I’ll also include critical-path unit/UI tests and a concise security architecture document covering key management and immutable audit strategy. A useful improvement would be defining threat-model checkpoints before each beta milestone to support the external security review. Check out my portfolio here:- https://www.freelancer.com/u/installerpoint Best Regards, Muhammad Adeel
$25 USD in 32 days
8.1
8.1

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your finance app project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham
$15 USD in 40 days
8.0
8.0

The security and compliance requirements for your Android finance app are clear, and I totally see the importance of a solid foundation. And I’ll focus on implementing data encryption both at rest and in transit, making sure biometric login via Android BiometricPrompt, plus creating an immutable audit trail for all those critical actions. I’ll also integrate with your KYC, banking, and audit-log APIs while adhering to OWASP Mobile guidelines. I can have a production-ready app, complete with the source code and signed APK, ready for you to test first, you know? You can review the work and only award the project once you're satisfied—there's no risk on your end. My rate for this project is 16 USD, and I can start immediately to meet your timeline for a testable beta. Rajavel - Android Developer specializing in secure mobile applications, like, for finance apps.
$16 USD in 10 days
6.9
6.9

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, Bhargav Android Developer | Kotlin & Java Expert
$15 USD in 40 days
7.1
7.1

Your audit trail will fail compliance if you store logs in a mutable SQLite table instead of a write-once encrypted ledger with cryptographic hashing. Most developers miss this until the security review flags it as a critical finding. Quick questions - are you planning to use a third-party KYC provider like Jumio or Onfido, or is this a custom internal API? And what's your target user volume in the first 6 months so I can size the local database and caching layer correctly? Here is the architectural approach: - KOTLIN + JETPACK: Build with Compose for UI, Room for encrypted local storage, WorkManager for background sync, and Hilt for dependency injection following clean architecture patterns. - BIOMETRIC + ENCRYPTION: Implement BiometricPrompt with Android Keystore for hardware-backed key generation, AES-256-GCM for data-at-rest encryption, and certificate pinning for API calls to prevent MITM attacks. - AUDIT TRAIL: Design append-only audit logs using SHA-256 chaining where each event references the hash of the previous entry, making tampering immediately detectable during compliance review. I've built 4 fintech Android apps that passed SOC2 and PCI-DSS audits, including one that scaled to 200K users processing $50M in transactions. Let's schedule a 20-minute technical call to walk through your KYC flow and API contracts before I finalize the architecture.
$18 USD in 30 days
6.7
6.7

Hi there, I can help you create a secure Android finance application that adheres strictly to your compliance and security requirements. Utilizing Kotlin and Jetpack, I will ensure the app features a seamless onboarding process with robust KYC checks and secure access through biometric login. I have experience in mobile app development with an emphasis on security protocols, including encryption for data at rest and in transit. I will also implement immutable audit trails as per your specifications. Your satisfaction is my priority and I guarantee that I will deliver you a high-quality result. Regards, Ali
$15 USD in 1 day
6.4
6.4

Hi, I’m an experienced Android developer with strong expertise in Kotlin, Jetpack, secure API integrations, authentication, biometrics, and finance-related applications. I can build your production-ready finance app with a security-first architecture, including secure KYC onboarding, real-time balances, searchable transaction history, biometric protection using Android BiometricPrompt, encrypted data in transit and at rest, and an immutable audit trail. I’ll follow modern Android and OWASP Mobile Security best practices and structure the codebase for maintainability and external security review. I’ll also integrate your KYC, banking, and audit APIs and provide comprehensive unit/UI tests for critical flows. Proposed stack: Kotlin, Jetpack Compose, MVVM/Clean Architecture, Retrofit/OkHttp, Android Keystore, BiometricPrompt, and secure local storage. I can provide the source code, signed APK, tests, and a concise security architecture document. I’m available to start quickly and can provide a detailed timeline after reviewing the API documentation and requirements. Best regards, Jaffer
$20 USD in 40 days
6.3
6.3

Hi, I’d build the Android application natively in Kotlin using Jetpack, with the security architecture established before implementing the KYC, account and transaction flows. I’ll integrate the supplied KYC, banking and audit APIs with authenticated network calls, encrypted local data, Android Keystore-backed key handling and BiometricPrompt protection for sensitive actions. Account balances and transaction history will use structured state handling with responsive search/filtering, while security-sensitive events are sent through the required audit workflow without exposing confidential data in logs. I’ll cover the critical onboarding, authentication, biometric and API flows with unit/UI tests and review the implementation against applicable OWASP Mobile practices before beta delivery. Handover will include the Kotlin source, signed APK, test suite and a concise security architecture document covering encryption, key management and audit handling.
$22 USD in 40 days
6.3
6.3

Secure Android Finance App By Vimal Kumar As an experienced Full Stack Developer and AI Solutions Expert, I have built a number of robust, secure apps for various industries, including finance. I understand the critical importance of security and compliance in a finance app like yours, and I'm well-versed in integrating with third-party APIs securely. My skill set not only includes Mobile App Development, but also an array of other relevant capabilities such as Web Development, API Development, and Third-Party Integrations. Having me as part of your team means you get an expert who can handle your app holistically. Finally, I understand the need for excellent documentation to guarantee smooth handovers. Apart from delivering a production-ready Android app, my commitment includes creating a brief yet comprehensive document outlining the encryption, key management, and audit strategy employed in your project. This will make subsequent external security reviews seamless and allow for easy maintenance even beyond project completion.
$15 USD in 40 days
6.4
6.4

Hi there, Creating a secure and compliant Android finance application can be challenging due to potential vulnerabilities during data handling and user authentication. These issues can compromise user trust and app integrity. With my expertise in Android development using Kotlin and Jetpack, alongside adherence to OWASP Mobile guidelines, I ensure a bullet-proof security framework, including encrypted data handling and biometric login, fulfilling your requirements thoroughly. Here are my questions: What is the expected user load for the app initially? Are there any specific compliance standards apart from those mentioned that need to be addressed? Let's discuss your project now!
$15 USD in 40 days
5.9
5.9

Hello, 1. Are you set on using Kotlin and Jetpack for this app? 2. Should the audit trail capture user-initiated logouts as well? Excited to build your finance app! I'll focus on creating a seamless onboarding flow with robust security. Ensuring encryption and strict compliance sound like a key challenge, but I have a solid approach for it. I'll share previous secure app examples in chat. Prefer discussing timeline and costs after reviewing the full scope together. Looking forward to crafting a secure app with you—let's chat soon!
$40 USD in 40 days
6.1
6.1

Hi, The focus on bullet-proof security and compliance in your Android finance app aligns with the critical need for robust data protection and user verification workflows. The main technical risk is ensuring secure, seamless biometric gating and encrypted data handling that meets external security review standards. While my expertise centers on backend systems and AI-driven platforms rather than native Android development, I have led complex secure system architectures integrating multiple APIs and enforcing strict audit and encryption policies. I typically design systems with clear separation between ingestion, verification, and data presentation layers to isolate sensitive operations and simplify compliance audits. Early validation of biometric gating and audit trail immutability will be crucial. For reliability, I emphasize secure key management, encrypted data at rest and in transit, and comprehensive logging with tamper-evident mechanisms to reduce security risks and simplify external reviews. I can start by outlining a security architecture document covering encryption, key management, and audit strategy tailored to your compliance rules. Clifton
$50 USD in 40 days
5.9
5.9

Finance apps pass external review when key management is right from day one, so I'll use the Android Keystore with hardware-backed keys, EncryptedSharedPreferences and SQLCipher for data at rest, TLS pinning in transit, and BiometricPrompt gating sensitive actions. Kotlin plus Jetpack, your KYC/banking/audit APIs wired in, unit and UI tests on critical paths, and the security doc. I can jump in right away. 1) Which KYC provider, Jumio, Onfido or in-house? 2) Minimum Android API level you need to support? Looking forward to it. Shayan
$19 USD in 40 days
5.7
5.7

Hi, I noticed your need for a secure Android finance application that includes a smooth onboarding experience with Basic KYC checks. I specialize in developing robust Android applications using PHP, which will ensure your app is both secure and compliant with industry standards. By integrating the specified API endpoints, I can create a seamless verification process for your users. Additionally, I will implement real-time account balance displays and an efficient transaction history feature with fast search and filtering capabilities to enhance user experience. Could you share more about the specific compliance rules you are following so that I can align the app’s security measures accordingly?
$15 USD in 7 days
5.7
5.7

Let's get started right now. Do you have a quick time to discuss in more brief about your project on a call? I assure you that you will get a secure, scalable, and 100% bug-free Android/iOS app where you will get all kinds of features. I am always looking for a long-term relationship, and I could be the one-stop solution in terms of design, development & QA, so you don't have to search for a new employee for every new project. I can spend at least 40 hours/week on your project (the project will be completed on time). I have been in this sector for like 5+ years now and am pretty experienced in creating apps with using the, Swift, React Native, Laravel, PHP, and Node.js. I am equipped to develop apps using these languages in all industries. Well-versed in in-app purchases, Machine learning, AI solutions, Dark Mode, Siri, Memoji, Real-time tracking, Multilinguality, Live Streaming, Photo/Video Editing, Voice Search, Push Notifications, User Authentication, User Profile Creation, Location, Chat, Map/social media/Payment Integration. Apart from that, I possess great familiarity with UI design principles, patterns, and best practices, Android Architecture Patterns (MVP, MVVM, MVI), REST (Retrofit, OkHttp, WebSockets), and Strong knowledge of Android SDK, different versions of Android. I look forward to the great opportunity to work with you. Best Regards
$20 USD in 40 days
5.8
5.8

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