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I’m building an EMI Locker that automatically locks a user’s phone whenever an instalment is overdue. The core flow is simple: our back-end receives the borrower’s EMI schedule, checks daily whether the due amount is cleared, and if it is not, the device must lock itself until payment confirmation arrives. When the borrower pays, the phone unlocks instantly. Key features I need implemented: • Overdue EMI triggers a hard lock • Auto-lock on the exact due date if no payment is detected • Continuous auto-lock logic for repeat delinquencies • E-mandate integration so that a successful mandate skips the lock A lightweight web dashboard should let me upload or edit borrower schedules, view lock history, and manually override a device if necessary. Push notifications, SMS, or email reminders can run in the background, but the lock itself is the primary enforcement tool. You’re free to choose the stack as long as you can deliver a single codebase that compiles cleanly for Android and iOS, plus a web admin panel. The locking mechanism must use native device-management APIs (Device Admin / MDM for Android, Managed App Configuration or similar for iOS) to guarantee the screen is completely inaccessible until the user hits our “Pay Now” button and the payment gateway or UPI callback confirms success. Acceptance criteria 1. A test borrower added from the dashboard is auto-locked within 60 seconds of a missed due date on both Android 11+ and iOS 15+. 2. Successful payment through the integrated gateway removes the lock without reinstalling the app. 3. All events—lock, unlock, payment—are timestamped and visible in the dashboard log. 4. Code passes a security review and is documented well enough for my in-house team to continue development. If you have shipped Device Admin or MDM-style apps before and can demonstrate a working proof-of-concept quickly, I’d love to see your approach.
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45 freelancerit tarjoavat keskimäärin ₹115 825 INR tätä projektia

Hi there, I will build your EMI Locker app for Android and iOS with Device Admin API-based screen locking on missed EMI dates, automatic unlock on payment confirmation via gateway callback, e-mandate integration to skip locks for active mandates, and a web dashboard for borrower schedule management and lock history. For the locking mechanism on Android, I will use Device Admin combined with a kiosk-mode overlay that captures all navigation keys, ensuring the borrower cannot bypass the lock screen through task switching, notifications, or safe mode boot. Questions: 1) Which payment gateway will handle the UPI and card payments for the in-app pay button? 2) Should the dashboard support bulk CSV upload of borrower schedules, or individual entry only? 3) How should the iOS version handle locking, given Apple's restrictions on Device Admin-style control? Looking forward to discussing further. Best regards, Kamran
₹77 200 INR 14 päivässä
8,5
8,5

Hello I have read your requirements and I am sure I will be able to help you in your EMI locker App. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹100 000 INR 30 päivässä
6,6
6,6

This project’s core challenge is implementing a reliable, tamper-proof lock triggered by overdue payments—and unlocking immediately upon payment confirmation—across Android and iOS with a shared codebase. I’ve built device management features before using Android’s Device Admin and iOS managed configurations that enforce screen locks until specific conditions are met. I suggest using React Native with native modules for device management APIs to keep one codebase. For locking, native hooks will enforce the lock screen so the user cannot bypass it. On the back end, the dashboard will update borrower schedules, show event logs, and let you override locks manually. I recommend WebSocket or Firebase for instant communication between payment confirmation and the device unlock. Two quick questions: 1) How do you plan to confirm payments instantly—do you have a payment gateway with webhook support ready? 2) Should the push notifications and reminders be customizable by the borrower or fixed messages? Given the clear acceptance criteria and my past experience delivering secure device lock apps, I can build a working proof-of-concept demo swiftly. Ready to start and get you a test borrower locked within your 60-second window.
₹75 000 INR 7 päivässä
5,6
5,6

As an experienced Full Stack Web and Mobile App Developer with a strong suit in JavaScript, PHP, and React Native, I am confident that I can build the EMI Locker cross-platform app you're envisioning with utmost precision. I have a proven track record of creating high-performing apps that not only meet stringent deadlines but also provide the highest level of security. This includes utilizing Device Admin and MDM APIs which will be critical for your app's locking mechanism. I have successfully integrated various payment gateways in my previous projects which makes me well-equipped to handle the E-mandate integration aspect of your app effortlessly. Moreover, my technical expertise in React Native and Flutter ensures a single codebase solution for both Android and iOS platforms. Efficiency is my forte; I aim to provide you with a clean and optimized application that guarantees quick response time and hassle-free usage. In addition to my extensive technical knowledge, my commitment to clear communication, on-time delivery, and end-to-end development support differentiate me as a Freelancer you can truly rely on. Security review and documentation come naturally to ensure hand-off readiness when the project is done. Let's connect soon to further discuss your unique requirements for this app and create something extraordinary together!
₹112 500 INR 7 päivässä
5,2
5,2

As a seasoned tech professional with a history of delivering powerful, data-driven solutions, I am confident that I can take on the challenge of building your EMI Locker Cross-Platform App with great success. My team at Web Crest has extensive experience in API Integration, JavaScript, Mobile App Development, PHP, and Web Development - all key skills needed for this project. We have not only built intelligent and scalable apps, but we've also worked on projects involving Device Admin or MDM-style implementations. Our approach to your project will focus on every aspect of its functionality. From the overdue EMI triggers to the continuous auto-lock logic for repeat delinquencies, we'll ensure every feature aligns seamlessly with your requirements. Not only will I develop an intuitive web dashboard for you to manage borrower schedules and view lock history, but I will also provide maximum customization options so that you can have full control.
₹150 000 INR 7 päivässä
4,8
4,8

Hi, As per my understanding: You are building an EMI Locker system where overdue instalments trigger a device-level lock until payment confirmation is received. The backend checks EMI status daily, enforces auto-lock on due dates, supports repeat delinquencies, integrates e-mandate logic to bypass lock when successful, and provides a web dashboard for schedule management, logs, and manual override. The solution must work on Android (Device Admin/MDM) and iOS (MDM/Managed configuration) with a single maintainable codebase plus admin panel. Implementation approach: I propose a Flutter-based app for shared logic, with native modules for Android Device Admin/Device Owner mode and iOS MDM configuration. The backend (Node/Python) will handle EMI schedules, payment verification, webhook callbacks (UPI/gateway), and real-time lock/unlock commands via secure push channels. A web dashboard (React + REST API) will manage borrowers, logs, overrides, and audit trails. Lock state will be enforced natively to prevent bypass, with event logging and security hardening. Architecture will support repeat delinquencies and mandate validation rules. Estimated timeline: 5–7 weeks including POC. A few quick questions: – Will devices be corporate-managed (MDM enrollment possible)? – Which payment gateway/UPI provider is planned? – Do you require offline lock enforcement logic?
₹90 000 INR 45 päivässä
4,9
4,9

Hello, This is a serious device-control project, and it must be engineered correctly at the OS level — not simulated with superficial screen overlays. First, an important technical reality: • Android → True hard lock is achievable using Android Enterprise (Device Owner mode) with Lock Task / kiosk enforcement. • iOS → Full device hard lock is only possible via Supervised devices enrolled in MDM (Apple Business Manager). It cannot be done via standard App Store apps due to Apple restrictions. If devices are company-provisioned (recommended for EMI models), here’s the architecture: Backend • Node.js (NestJS) + PostgreSQL • EMI scheduler service (cron + queue worker) • Payment gateway + UPI webhook validation • E-mandate verification logic • Event logging system (lock/unlock/payment timestamps) Mobile App (Single Codebase – Flutter) • Android: Device Owner + Lock Task mode • iOS: MDM-based restriction profiles • FCM/APNs command channel for real-time lock/unlock • Secure local enforcement agent Admin Dashboard (Web) • Borrower schedule upload/edit • Lock history + audit logs • Manual override • Mandate status view Flow Missed EMI → backend triggers command → device locks within 60s Payment verified via webhook → unlock command sent instantly Are devices corporate-provisioned? iOS distribution method (MDM vs App Store)? Target payment gateway? This must be built with strict security and auditability. Best regards, Amaan Khan L. (CUBEMOONS PVT.)
₹112 500 INR 7 päivässä
4,0
4,0

✔ I deliver secure, production-ready fintech systems — enforcement that works 100%, not 99.9%. ✔ Workflow Diagram Borrower EMI Data ⟶⟶ Backend EMI Engine (Daily Validation Cron) ⟶⟶ Payment Gateway / UPI Callback ⟶⟶ Device Lock API Trigger (Android Device Admin / iOS MDM) ⟶⟶ Event Logging ⟶⟶ Web Dashboard Monitoring & Override Key Highlights ✔ Native Device-Level Locking — Android (Device Admin / Android Enterprise) and iOS (MDM / Managed Configuration) to ensure the screen is fully inaccessible until payment confirmation. ✔ Real-Time EMI Validation Engine — automated due-date detection with continuous delinquency checks and repeat auto-lock enforcement. ✔ Instant Unlock on Payment — secure webhook-based confirmation from payment gateway or UPI callback removes lock within seconds. ✔ Unified Codebase — cross-platform mobile app (Flutter or React Native) + PHP/Node backend with REST APIs. ✔ Secure Admin Dashboard — upload/edit EMI schedules, view borrower status, override lock, monitor real-time logs. ✔ Full Audit Trail — every lock, unlock, mandate success, and manual override timestamped and stored. ✔ Security-First Architecture — encrypted API calls, token validation, role-based dashboard access. ✔ Rapid POC Delivery — working lock/unlock demo for Android 11+ and iOS 15+ within initial milestone. Best Regards, Asad Mobile Security Systems Developer | Fintech Automation Architect | MDM & Device Control Specialist
₹80 000 INR 30 päivässä
3,7
3,7

Hello, thanks for posting this project. I’ve reviewed your requirements and believe my experience building device-locking solutions and integrating real-time payment verification aligns well with your goals. I’m confident delivering a robust app that enforces true device-level locks using native management APIs, ensuring enforcement even in sensitive environments. The web dashboard, admin features, and precise scheduling are all within my core expertise. I can also provide clear, production-grade code and thorough documentation for smooth handover. Would you like to discuss technical tradeoffs around device management APIs for recent iOS and Android versions before we proceed?
₹112 500 INR 5 päivässä
2,9
2,9

I was immediately drawn to your EMI Locker project description and the innovative solution you're looking to implement. With over 7 years of experience in software development, I believe I can bring a unique perspective to this project. Here's how I envision tackling this project: - Analyzing the borrower's EMI schedule to create triggers for locking - Implementing auto-lock functionality based on overdue payments - Developing continuous auto-lock logic for repeat delinquencies - Integrating e-mandate for seamless payment confirmation and unlocking For the tech stack, I propose using React Native for the cross-platform app development, ensuring a smooth experience on both Android and iOS devices. The web dashboard can be built using React.js for easy data management and real-time updates. In a previous project, I developed a similar app using Device Admin APIs for Android, ensuring a secure and reliable locking mechanism. The outcome was a successful implementation that met the client's requirements for automated locking and unlocking based on payment status. As I delve into your project requirements, I am curious about the specific notification channels you prefer for reminders and how you envision manual overrides working in the web dashboard. Your insights will help me tailor the solution to fit seamlessly into your workflow. Feel free to review my portfolio for releva
₹82 500 INR 7 päivässä
2,6
2,6

An EMI locker only works if the lock mechanism is technically enforceable and OS-compliant — especially on iOS. From your brief, the system must: auto-lock on missed due date, remain locked for repeat delinquencies, instantly unlock after verified payment, support e-mandate logic, and log every event in a web dashboard. The enforcement layer is clearly the critical piece. On Android, this can be implemented using Device Owner (Android Enterprise / MDM mode) rather than basic Device Admin, since newer Android versions restrict hard-lock behavior. On iOS, full device locking is only possible via MDM enrollment (Supervised mode) — it cannot be done through a normal App Store app. That architectural decision is important before development begins. I’ve worked on device-policy–driven Android builds and backend-controlled enforcement flows where payment callbacks trigger immediate policy updates. The backend would manage schedules, lock state, and webhook-based unlock confirmation, with a real-time dashboard for overrides and logs. My approach: Define compliant device-control architecture → implement Android Device Owner flow → define iOS MDM strategy → build secure backend + audit logs → integrate payment gateway + webhook unlock → test enforcement scenarios. Before proceeding: are devices corporate-managed (MDM-enrollable), or are these standard consumer App Store installs?
₹100 000 INR 2 päivässä
2,6
2,6

Hello, I can build your cross-platform EMI Locker with reliable native lock enforcement. I’ll implement Android Device Admin/MDM controls and iOS Managed App Config to ensure the phone hard-locks within 60 seconds of missed EMI. The system will sync borrower schedules, trigger auto-locks on due dates, skip locks on successful e-mandates, and instantly unlock upon payment callbacks. You’ll get: • Android + iOS app (single codebase) with secure lock/unlock flow • Web dashboard for schedules, logs, overrides • Real-time events: lock, unlock, payment • Payment gateway + UPI callback integration • Clean APIs, security-reviewed code & full documentation I’ve delivered similar device-control/MDM workflows before and can share a quick POC. Best regards, Atul
₹112 500 INR 7 päivässä
2,4
2,4

Hello! I understand you need an EMI Locker app that locks a user’s phone when an installment is overdue and unlocks instantly upon payment. The app should support overdue triggers, auto-lock on due dates, repeat delinquencies, and e-mandate integration to skip the lock when payment is received. A web dashboard should allow uploading schedules, viewing lock history, and manually overriding devices, while notifications can run in the background. I have 6 years of experience developing native Android and iOS apps with Device Admin and MDM-style functionality, real-time backend integrations, and secure payment workflows. I will deliver a cross-platform app with a clean codebase, using native device-management APIs to ensure a hard lock until payment confirmation. The web dashboard will be intuitive, secure, and fully integrated with logging, overrides, and notifications. I specialize in high-security mobile apps that combine real-time device control, payment verification, and robust backend management. I WILL PROVIDE 6 MONTHS FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE; WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I’D BE HAPPY TO SHARE EXAMPLES OF MY PAST PROJECTS IN A PRIVATE CHAT. Let’s connect to discuss the technical approach, timelines, and payment gateway so this EMI Locker is delivered secure, reliable, and fully functional on Android and iOS. Best regards, Nikita Gupta
₹112 500 INR 24 päivässä
0,2
0,2

Hello There! I carefully read the full job description for EMI Locker Cross Platform App. I understand you are building a compliance driven enforcement system where devices automatically lock when an EMI becomes overdue and unlock instantly upon verified payment. The platform will combine backend schedule validation, native device management level locking, secure payment callbacks, and a web dashboard for monitoring and overrides. I acknowledge your requirements for overdue trigger based hard lock, exact due date auto enforcement, repeat delinquency logic, e mandate bypass handling, real time payment confirmation unlock, event logging, dashboard schedule management, and security review readiness. Likely core components include EMI schedule engine, native device admin and MDM integration, payment gateway callback validation, lock and unlock event logging, admin override controls, notification system, and audit dashboard. I have 7+ years of experience in mobile and web development, I have built secure cross platform applications with native Android device admin capabilities, payment integrations, backend APIs, and structured admin dashboards. I focus on strong architecture, compliance awareness, security hardening, and clean documentation for long term maintainability. Let us schedule a quick chat to align your vision and next steps. Warm Regards, Pratiksha Gupta
₹75 000 INR 25 päivässä
0,2
0,2

Hello, Greetings! I’m a senior full-stack developer with 6+ years of experience in building scalable mobile and web applications. I specialize in cross-platform and native mobile development using Flutter, React Native, Swift (iOS), and Kotlin/Java (Android), along with strong backend expertise in Node.js, Django, FastAPI, and Laravel, supported by modern cloud technologies. My team and I build end-to-end mobile solutions including custom dashboards, internal tools, automation systems, role-based platforms, secure APIs, real-time features, payment integrations, push notifications, and complete app store deployments. We focus on creating smooth user experiences, clean architecture, and reliable performance. We’ve worked on numerous mobile projects with different requirements and complexities, helping clients turn their ideas into well-designed, high-performing applications. Your project aligns well with our technical skills and development approach. I’d be happy to discuss your project scope, ideas, and goals, and suggest the best technical approach. Best regards, Suman Joshi
₹112 500 INR 7 päivässä
0,0
0,0

I recently delivered a project with this exact scope, focusing on seamless auto-lock functionality integrated with payment verification. Your need for a clean, professional, and user-friendly system—combining automated overdue EMI triggers with a lightweight web dashboard for schedule management and manual overrides—aligns perfectly with my expertise. I specialize in cross-platform mobile solutions using native device-management APIs to ensure a secure, hard lock experience on both Android and iOS, alongside integrated payment gateways and detailed event logging. While I am new to freelancer, I have tons of experience and have done other projects off site. I would love to chat more about your project! Regards, MN Williams
₹112 500 INR 30 päivässä
0,0
0,0

Hello, Your EMI Locker requires strict device level enforcement, secure backend validation, and instant payment based unlocking. This must be built using native device management APIs, not surface level app locks. I can deliver a clean, production ready system covering Android, iOS, and a web admin dashboard under a unified architecture. Proposed Solution Mobile App Single codebase using Flutter or React Native Android 11+ using Device Admin or Android Enterprise APIs for hard lock iOS 15+ using MDM or supervised mode with Managed App Configuration Background EMI due date monitoring Secure token validation with server Instant unlock triggered by verified payment callback Backend Secure API to receive and manage EMI schedules Daily automated delinquency checks Lock and unlock event triggers Payment gateway and UPI webhook integration Timestamped logs for lock, unlock, and payments Admin Dashboard Add and edit borrower schedules View lock history and device status Manual override controls Event log visibility Role based secure access Security Encrypted API communication Server side validation before any unlock Full audit trail This solution will meet your acceptance criteria: auto lock within 60 seconds of missed due date, instant unlock after successful payment, full dashboard logging, and security ready implementation. I can also deliver a working proof of concept quickly to demonstrate device level enforcement. Best regards.
₹112 500 INR 7 päivässä
0,0
0,0

Hi, I’m Ashton Williams, a full-stack developer experienced in building secure, scalable custom business systems. I’ve reviewed your EMI Locker project and appreciate the critical need for reliable device-locking tied to payment status using native MDM and device-admin APIs. I have delivered similar complex solutions with native integrations and will implement a clean, performant codebase that compiles for both Android and iOS, plus an intuitive web dashboard for managing borrowers and monitoring lock events. My focus is on robust auto-lock logic, seamless payment-triggered unlocks, and detailed logging in a secure, maintainable design. Please message me to discuss details and get started.
₹112 500 INR 30 päivässä
0,0
0,0

Hi, Resonite Technologies has experience with device-control apps and secure backend enforcement systems. Your EMI Locker requires true device-level enforcement, not just UI blocking — and we understand the complexity. ⚠ Important: On Android, full lock is achievable via Device Owner (Android Enterprise / Device Policy Manager API). On iOS, complete device lock for consumer apps is not allowed unless devices are enrolled under Apple MDM (supervised mode via Apple Business/School Manager). This must be clarified early. ? Proposed Architecture ? Mobile App (Single Codebase) • Flutter (shared UI layer) • Native platform channels for Device Admin / MDM calls • Secure background service for EMI check sync • Lock screen override only via backend confirmation ? Lock Enforcement Android 11+ • Device Owner provisioning • LockTask / Kiosk mode • Disable system navigation & settings • Persistent background service iOS 15+ • MDM-based restriction profile (supervised devices only) ? Backend + Admin Panel • Node.js / Django backend • Daily EMI cron validation • Web dashboard (React/Vue) • Manual override controls • Full audit logs (lock/unlock/payment timestamps) • Payment gateway + UPI callback integration ✅ Acceptance Coverage • Lock within 60s of missed due • Instant unlock on payment webhook • Event logging • Secure documented codebase ⏱ Timeline 8–10 weeks (MDM setup may affect schedule) — Resonite Technologies ?
₹152 500 INR 7 päivässä
0,0
0,0

Recently, I helped a fintech startup develop a device management app that enforced restrictions based on payment status, achieving seamless auto-lock and unlock on both Android and iOS within the first month. I’d love to help with this. I deliver clean, reliable work on time, and I keep communication clear throughout the process. I’ve worked on similar tasks before, so I know how to make things efficient and stress-free. If you want someone dependable who can handle it properly from start to finish, I’m ready to get started. While I am new to Freelancer, I have tons of experience and have done other projects off site. I would love to chat more about your project! Regards, Cristiano Ferreira
₹112 500 INR 30 päivässä
0,0
0,0

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