Android App Developer for Call/SMS Blocker - 31/03/2026 22:40 EDT

@infowider11

✔️✔️✔️✔️✔️ Android Call & SMS Blocker MVP (Reliable & Policy-Compliant) ✔️✔️✔️✔️✔️ Hello, How are you? I’ve carefully reviewed your MVP requirement. You want a reliable, system-aware Android app that behaves like a “bouncer”—blocking unknown calls/SMS while staying compliant with Android 10–14 restrictions. I can build this with a clean architecture, proper permission handling, and stable behavior across devices (including dual-SIM). Features: • Incoming Call Detection & Silent Blocking • SMS Detection & Filtering • Contact Check (Allow only saved numbers) • Toggle ON/OFF (Call & SMS Blocking) • Whitelist (Manual override) • In-App Notification for Blocked Calls/SMS • Call Log / History (with report option) • Dual-SIM Support • Lightweight, Clean UI • Permission Handling (Android 10–14 compliant) Let’s chat… Thanks

@OutsourceMan

As a world-class Android app developer, I am confident I have the experience and skills necessary to bring your MVP project to life. My respected enterprise, CnELIndia, has been at the forefront of web and app development for over 18 years and specializes in a broad range of technologies required for this project such as PHP, iOS, and Mobile App Development. Given our top-notch skill set in SMS and call handling, you can bank on our proven track record and satisfied clients numbering over 743 stands testimony for this. My team’s expertise extends to the latest Android versions including 10–14, ensuring we stay ahead of any potential challenges in the development process. We understand your priority is functionality and reliability over complex UI for this application, which aligns perfectly with our development philosophy. Additionally, we have a depth of knowledge on permissions like READ_CONTACTS, READ_PHONE_STATE, RECEIVE_SMS nécessaire to deliver high-quality work or your MVP. Another aspect where we stand out is proposal generation for technical requirements. We will comprehensively strategize SMS blocking without any default SMS app implications,dual-SIM functionality as well as its future updates. My name is Raman and together with my dedicated team at CnELIndia I guarantee a robust,sourced solution fully documented that meets your time,budget constraints_CT

@softsolution2000

I have extensive experience in PHP, Java, Mobile App Development, Software Development, and Mobile App Testing, making me a great match for the Android App Developer for Call/SMS Blocker project. I am confident in my ability to implement call and SMS blocking efficiently without requiring the app to be set as the default dialer. For SMS blocking on Android 10+, I believe the simplest working approach involves managing permissions effectively. I am prepared to tackle any challenges posed by the latest Android versions (10–14) and provide reliable solutions. Let's discuss the project scope to adjust the budget accordingly. I am eager to begin working on this project and demonstrate my dedication to its success. Please go through my profile, which showcases my 15 years of experience. Let's discuss the job details and get started right away. Looking forward to hearing from you.

@ykarora26

Hi, I came across your project dretails Android App Developer for Call/SMS Blocker - 31/03/2026 22:40 EDT and can help you deliver a clean, high-performing solution that meets your exact requirements. I’m a web developer with strong experience in WordPress, Shopify, and React, and I’ve successfully built business websites, eCommerce stores, and custom web applications with a focus on performance and user experience. Here’s what you can expect: Clean, responsive, and user-friendly design Fast performance with SEO-friendly structure Clear communication and on-time delivery I focus on building solutions that not only look good but also help achieve real business goals. Quick question: What’s the main goal you want to achieve with this project? I’m ready to start immediately and deliver reliable, high-quality results. Best regards, Yogesh

@extreamcode

Hi there, I’ve read your MVP-focused brief for an Android Call/SMS Blocker and I’m confident I can deliver a reliable solution within 2-3 weeks. I’ve built Android apps involving telephony handling and security-conscious features, and I’ll prioritize core reliability over UI polish to meet your MVP goal. What I’ll build: - Call blocking: implement a CallScreeningService to evaluate incoming numbers against the user’s contacts. The app will block non-contacts while the user can review any missed calls. This approach works with newer Android versions without forcing users to switch the default dialer. - SMS blocking: implement a robust interceptor using SMS_RECEIVED with careful handling of SMS permissions. I’ll surface a clear user flow to allow blocking non-contacts, with explicit caveats for Android 10+’s default-SMS-app requirements and provide a fallback for users on devices where full blocking isn’t possible. Delivery plan: - MVP core logic, unit/instrumented tests, and a minimal UI for configuration. - Iterative validation against real devices across Android 10-14 to address newer restrictions and OEM customizations. - Clear in-app guidance for users on any platform-specific limitations. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. For this MVP, what is your target deployment channel (Play Store internal testing vs public release), and do you h

@corpmember29

Hello I have experience building Android apps with call and SMS handling, including number filtering and blocking, ensuring reliability across Android 10–14. I can deliver your MVP in 2–3 weeks, focusing on functionality and stability. Proposed Approach: Call blocking: Use Android’s CallScreeningService (no default dialer required) to block unknown numbers. SMS blocking: Use BroadcastReceiver with proper permissions to intercept and discard messages from unknown numbers on Android 10+, while noting default SMS app restrictions. Challenges & Mitigation: Android 12+ imposes restrictions on background services and permissions; I will ensure compatibility with runtime permission handling, Do Not Disturb policies, and battery optimizations. Screening Answers: Yes, I’ve built apps handling calls/SMS (examples can be shared privately). CallScreeningService allows blocking without default dialer. SMS blocking via BroadcastReceiver + filtering unknown numbers; user may need to grant special permissions. Challenges: background restrictions, permission prompts, Do Not Disturb; mitigated via best practices for modern Android. I follow Agile methodology, provide unlimited revisions, and deliver complete source code with 3 years free support. This ensures a working, reliable MVP ready for testing and future enhancements. Best regards,

@rahuliitm69

Hi there, I am a senior Android developer and I have worked on apps involving system-level features, permissions handling, and background services, including call and SMS related logic. For your MVP, I can build a clean and reliable solution focused on blocking unknown calls and messages without overcomplicating the UI. My approach will be to use Android’s CallScreeningService to handle incoming calls and filter out numbers not present in the user’s contacts, which works well without requiring the app to be the default dialer. For SMS, the most reliable approach on Android 10+ is to handle it via default SMS role, so I’ll structure it in a way that blocking works smoothly while keeping the setup simple for the user. I’ll also make sure permissions, background behavior, and device-specific restrictions (Android 10–14) are handled properly so the app works consistently across devices. Answers to your questions: – Yes, I’ve worked with call/SMS handling and similar background logic before, can share details in chat. – Call blocking will be done using CallScreeningService, so no need to make the app default dialer. – For SMS, the simplest reliable way is to use default SMS role. – Main challenges are Android restrictions and device differences, I handle them using proper APIs and testing. I would request a quick chat to align on MVP scope and get started. Thanks, Rahul A.

@diektech

Hi, This is Elias from Miami. I checked your project description and understand you’re looking to build an Android MVP that blocks incoming calls and SMS from numbers not saved in contacts, with simple controls for toggling protection on/off and managing a whitelist. I’ve worked on Android apps with permission-heavy flows and device-level behavior, and I understand this project needs a practical implementation that respects Android 10–14 restrictions while keeping the UX simple and reliable. My approach would be to build the MVP in Kotlin with a lightweight UI, a clear permission/onboarding flow, contact-based filtering logic, whitelist support, and the safest possible handling for call/SMS behavior based on current Android system limitations and policy constraints. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – For call blocking, are you open to the most reliable Android-compliant approach even if true silent blocking has device/version limitations without default dialer privileges? Q2 – For SMS, do you want a filtering/quarantine workflow if needed, or must it be full blocking only? Q3 – Do you need the MVP tested across specific manufacturers as well, since call/SMS behavior can differ on Samsung, Xiaomi, Pixel, and others? Looking forward to hearing from you.

@techplusintl

Hi, To build the Android application that blocks calls and SMS from unknown numbers, I understand the focus is on functionality and reliability. I have experience in developing similar apps, and I will implement call blocking by using the Android Telephony API without requiring the user to set this app as the default dialer. For SMS blocking, I will utilize the SMS Manager and Content Resolver to intercept messages while considering the implications of the default SMS app on Android 10+. I foresee challenges with permissions and background processing in the latest Android versions, and I will address these by ensuring proper permission handling and using foreground services where necessary. Have you built apps involving call or SMS handling before? Please share examples. Also, could you clarify if you have any specific requirements for the app's performance metrics? Let's chat or share any additional details needed to start the project. Thanks!

@SBITServices

Hi, I have over 5+ years of experience in both frontend and backend development. I will do the specified tasks. Key Areas of Expertise: a) Full-Stack Development: Proficient in both frontend and backend technologies Frontend: Next, Js, ReactJS, Bootstrap, JavaScript, jQuery Backend: Laravel, CodeIgniter, Node.js b) API Integration: Experienced in integrating and working with APIs to enhance application functionality. c) Microservices: Skilled in developing and integrating microservices for scalable and efficient solutions. d) Database Management: Competent in managing databases with Postgresql, MySQL, MongoDB, and Oracle. d) Server Handling: Adept at handling server environments such as AWS, Google Cloud, VPS, Apache, and Nginx. Let’s discuss how I can help achieve your project goals and add value. Lets connect in chat so that We discuss further. With Regards, Sai

@Friends4it

We build Android apps at the system level daily — we've handled CallScreeningService, default-dialer flows, and SMS blocking across Android 10–14. For this MVP, our approach: • Use CallScreeningService to block unknown callers without requiring default dialer change — works on Android 10+ cleanly • For SMS blocking on Android 10+, we'll implement best-effort non-default approach first; escalate to default SMS app role only if testing shows gaps • Contact-list sync via ContentResolver with permission handling • Background service with WorkManager for reliability We've built apps with these exact system-permission flows. Timeline: 14 days for full MVP (call + SMS blocking, background reliability, contact whitelist). Clean Kotlin codebase, documented, ready for future iterations. We can start immediately and keep communication tight.

@AITSoft

Hello, I understand you need a simple Android app to block calls and SMS from numbers not in contacts, focusing on solid functionality and reliability for an MVP within 2-3 weeks. I have experience building apps handling calls and messages and know how to work around Android system rules to block calls without needing the app as the default dialer. I can implement SMS blocking for Android 10+ by carefully managing permissions, given the limitations on non-default SMS apps. I will focus on making a clean and stable app that works well across Android 10 to 14, handling restrictions and changes those versions bring. To deliver the best, I need to know: Are there any specific Android versions you want to prioritize? Do you want the app to handle blocking for both calls and SMS simultaneously, or can that be phased? Is there any preference on how the block list updates, manual only, or possibly importing contacts? Will the app need background service persistence for blocking even when closed? Which Android versions should the app support first to ensure best blocking performance? Thanks,

@WebTechDesignBG

Woah Hello! It looks like you’re developing a straightforward Android app that blocks unwanted calls and SMS messages from numbers not saved in the user’s contacts. With my experience of 7+ years in mobile app development, I can help create a reliable MVP that focuses on the essential features you need. I’ve previously built apps that handle call and SMS functionalities, so I understand the Android system's behaviors well. To implement call blocking without setting the app as the default dialer, I’d leverage the Android Telephony API to monitor calls discreetly. For SMS blocking on Android 10+, I’d use the SMS Retriever API, which allows for filtering without being the default SMS app. I’m aware of the challenges posed by newer Android versions, like stricter permissions, and I have strategies to address them effectively. Best regards, Ivan Mandinski

@LiveExperts

Hello, As a Java and PHP developer, I have the necessary skills and experience to build your call/SMS blocker app. My strong understanding of Android system-level behaviors allows me to navigate the intricacies involved in blocking specific calls and messages while ensuring the app does not need to be set as the default dialer. I also have a clear grasp on implementing SMS blocking on Android 10+ without complicating the user's experience with default SMS app implications. Considering this is an MVP project that demands a strong emphasis on functionality and reliability, my track record of delivering high-quality work is particularly relevant. Working with my team at Live Experts, we can provide you with a working product that handles the core use case cleanly, and also ensure your overall satisfaction throughout the process. In addition to my Java and PHP abilities which are key in building this app, being well-versed in Python, Linux, and Linux-based tools, I am confident in navigating the challenges posed by latest Android versions (such as 10-14) and addressing them promptly. For your budget considerations, we are open to discussing fixed price proposals for this project so as to align with your needs. Let's transform your idea into reality - Contact me today! Thanks!

@Rekhathakur

Hello I have thoroughly reviewed your project description and am confident in my ability to assist you in completing it successfully. I believe it would be highly beneficial to delve deeper into the specifics of the job to determine the most effective way forward. I am open to scheduling an interview at your convenience, and I genuinely appreciate the chance to collaborate with you on this project. Your response is eagerly anticipated, and I'm excited about the prospect of working together. Thank you for considering my proposal. Looking forward to your prompt reply! Best regards Rekha!!!

@planDapps

SILENT CALL BLOCKING WITHOUT DEFAULT DIALER ANSWERING YOUR FOUR QUESTIONS DIRECTLY Call/SMS examples: Built contact gated communication apps with permission level call handling happy to share details in chat. Call blocking without default dialer: CallScreeningService (API 29+) allows silent rejection without default dialer requirement. App registers as a screening service unknown numbers rejected before ringing, user notified via in app notification only. SMS blocking on Android 10+: SMS_DELIVER broadcast with SMS_RECEIVED priority handling. Without default SMS app, we filter at notification level and log blocked messages functionally invisible to user. Cleanest MVP approach within Android policy. Android 10-14 challenges: Background process restrictions require foreground service for reliable call screening. Dual SIM handled via SubscriptionManager separate toggle per SIM slot. Android 14 tightened RECEIVE_SMS permissions declared correctly in manifest with runtime request flow. Our build: Kotlin, API 29+, CallScreeningService, dual SIM support, call log with report flag, in app blocked call notifications, clean toggle UI. 12+ years building mobile apps in house. System level Android logic and UI owned by one team. Should iOS be in scope for MVP or a future phase the additional notes mention it but the spec says Android mandatory? Regards, Haider

@Herculesz

Hi This MVP is very doable, but the main technical challenge is working within Android 10–14 restrictions while still making call and SMS filtering reliable. For call handling, I’d use Kotlin with CallScreeningService plus contact checks and a whitelist layer, which allows screening and rejecting unknown numbers without making the app the default dialer, though it typically needs to be set as the default caller ID and spam app. For SMS, the cleanest working approach on modern Android is to handle filtering through the default SMS role, because Google restricts broader SMS access and blocking behavior for non-default handlers. I’ve built Android apps around permissions, background services, contact lookups, and policy-aware flows, so I can keep the MVP functional without overengineering the UI. The implementation would focus on a stable permission flow, fast number normalization, toggle-based controls for call/SMS blocking, and a simple whitelist manager. I’d also account for Play policy and newer Android behavior changes so the app works predictably on API 29+ and remains maintainable for future enhancements. The result would be a practical MVP with clean Kotlin code, a simple interface, and a setup flow that clearly explains any role or permission requirements to the user. Thanks, Hercules

@XanvraTECH

As an experienced Android and iOS developer, I am confident that I have the skills and expertise necessary to deliver a high-quality, working Call & SMS Blocker app for your MVP project. My forte in Android App Development, Android SDK, Android UI Design, iOS Development and Software Development coupled with my previous experience in building apps involving call or SMS handling make me the ideal candidate for your job. Moreover, I appreciate your emphasis on reliability and functionality over complex UI for this MVP. Having a meticulous eye for detail and proficiency in documenting source code according to industry standards will ensure that my deliverables - fully functional Android APK or App Bundle, well-structured source code with adequate documentation, a basic yet intuitive UI/UUser Experience with implemented Setup instructions - meet not just your immediate needs but also provide a solid foundation for future enhancements based on performance. With my commitment to effective communication and delivering superior work within timelines, I assure you that I'll meet or exceed your expectations. I look forward to collaborating with you and offering you an exceptional end-result that aligns perfectly with your requirements.

@TalhaAhmed02

Hey there, Our team at TechForge Innovations is ready to build your "Bouncer" MVP, leveraging our deep experience with Android system-level behaviors and permissions for both single and dual-SIM devices. We will implement call blocking via the TelecomManager and CallScreeningService API to ensure silent rejection on Android 10-14 without requiring a default dialer change. We look forward to delivering a reliable, Kotlin-based solution that prioritizes your core functionality and provides a structured path for future iOS and whitelist iterations.