Auto-SMS & WhatsApp Post-Call - for sell this service to bussiness owners

@ashinnd84

Hi there, we are a team AI/ML web and mobile application developers. Please, send me a message to discuss the work and finish in no time. Thanks Ashish Kumar.

@mahads31

With years of experience in Mobile App Development and a solid technical skill set, including proficiency in both Java and Kotlin, I am uniquely qualified to complete your project. I've successfully built several Android utilities with superb functionality and uninterrupted service even when the screen is off or the device is locked. Additionally, my skills in Automation, APIs & Integrations can guarantee full compliance with WhatsApp policies, without risking the phone number being blocked. Moreover, my commitment to quality extends beyond just delivering a functional app. I always provide complete source code with helpful comments for easy future updates and a setup guide for seamless management of templates and media in your app. This skillful documentation will ensure smooth handling even after the project is finished—an asset that's as essential as the app itself! Partnering with me means getting more than just a freelancer delivering within deadlines. It means creating a roadmap that aligns with your long-term goals. Let me build the pathway to upgradeability and scalability for your business through this project!

@rakhshanz3

As an accomplished AI and ML expert, with over 15 years of experience ranging from academia to leadership roles in multinational software companies, I bring a unique blend of technical skill and strategic thinking that sets me apart from competitors. In particular, my proficiency in developing AI-powered voice and chat agents and delivering machine learning-based analytics platforms aligns seamlessly with your project requirements. Most recently, I led the development of multiple advanced digital products as a CTO for an AI startup, including architecting full-stack SaaS applications and building custom AI tools for workflow automation. Therefore, I'm confident in my ability to create a stable, efficient utility for you that can operate seamlessly even with phone screens turned off or locked and without being impacted by battery optimization algorithms. My deep understanding of backend development would be useful in integrating or automating the WhatsApp send function in compliance with their policies - eliminating the possibility of getting your phone number blocked. Additionally, as a strategic thinker and experienced manager, I am well-versed in delivering projects within strict deadlines, ensuring high-quality outputs and complete client satisfaction. With me on board, you're not just hiring a freelancer; you are partnering with an experienced professional who will leave no stone unturned to transform your vision into reality.

@RajAbhisek

We'll build this in Kotlin with a foreground service holding a PhoneStateListener — the reliable pattern for surviving battery optimisations on Android 10+ without background kill. For SMS, native SmsManager sends directly from the phone's own SIM. For WhatsApp, we'll use the official Intent-based send approach (WhatsApp's own share flow) to stay compliant and avoid number blocks — or the WhatsApp Business API if you have a Business account. Settings screen for swapping the message template and PDF attachment is a simple SharedPreferences UI. You get a signed APK, full commented Kotlin source, and a setup guide.

@jaroslavcaprata

I can build the Android utility with the required call-end trigger, background handling, and configurable message templates. The main technical consideration is making the service reliable on Android 10+ while respecting platform restrictions around background execution, permissions, and battery optimization. I would implement the call state detection, local SMS sending through the device SIM, and a settings interface where the message template and PDF attachment can be updated without rebuilding the app. For WhatsApp, I would first confirm the exact workflow you need and use an approach that complies with WhatsApp policies rather than relying on unstable automation methods that could risk account blocking. The app would be delivered as a signed APK with complete source code, comments, and documentation covering permissions, setup, and device configuration. I would also test the background behavior with screen locked and after common battery optimization scenarios. One important point to clarify: do you need this for personal/internal devices where the WhatsApp account is controlled by you, or is this intended for distribution to multiple users? Also, which WhatsApp sending method or account type do you currently plan to use?

@KasjanovaEste

Hi — Evgenii here. I see you need an Android utility that auto-sends SMS and WhatsApp messages with a PDF after any call ends. What matters most is reliable background operation without being killed by battery optimizations. A common issue is Android's Doze mode stopping background services. The tricky part is automating WhatsApp sends while remaining policy-compliant. My approach focuses on Kotlin for the app, using a foreground service with a persistent notification to keep the process alive, SMSManager for SMS, and WhatsApp's Intent API to open the chat with pre-filled message and PDF attachment. I'd include a settings screen for template updates. I've built similar Android automation apps with background services. Q1 – Do you have a specific PDF to send? Q2 – What's the default SMS template? Q3 – Do you need WhatsApp automation or just pre-filled intent? Happy to discuss details and suggest the best approach. Looking forward to hearing from you.

@guptakishan805

Getting the right professional for this task can sometimes feel as challenging as setting up a reliable SMS and WhatsApp messaging mechanism. However, fret not! As an experienced Full Stack Developer with 5+ years in Android App Development, I am more than capable of handling this project. My knowledge of Java and Mobile Development, in particular, sets me apart in this field. I fully understand that stability is one of your top priorities for this service. Over the course of my career, I have built several similar applications which have operated smoothly even when the device screen is off or locked. Through my experience, I am adept at avoiding battery optimisation issues and ensuring the steady functioning of an application irrespective of the surrounding circumstances. Lastly, my standout attribute would be my passion for creating practical and scalable solutions. As a freelancer, I take pride in building long-term relationships and on-time deliveries marked by high-quality work. As such, I will be able to deliver your Signed APK ready for installation on Android 10+ alongside comprehensive source code - all within the timeline designated. Let's leverage technology and transform your ideas into reliable digital products together!

@thiagofoz87

Your requirement involves three critical parts: reliable call-state detection, stable background execution on Android 10+, and WhatsApp-safe message delivery without risking account restrictions. I can build the app in Kotlin with a lightweight architecture focused on reliability and maintainability. The flow would monitor incoming/outgoing call events, trigger an SMS immediately after the call ends using the device SIM, and then initiate WhatsApp delivery using a compliant integration approach. For WhatsApp, I would avoid unofficial automation methods that could lead to number bans and instead implement a safer workflow aligned with current platform restrictions. The app can include: - configurable message template and PDF attachment management - settings screen for updating text/media without rebuilding the APK - persistent background service optimized against battery restrictions - runtime permission handling for Android 10+ - signed production-ready APK - complete documented source code and setup guide I would also implement logging and retry handling to improve delivery reliability after call completion events. Estimated delivery is around 12 days including testing across different Android versions and manufacturers, since background execution behavior varies significantly between devices.

@ankits0192

Hi — Ankit here. I see you need an Android utility that automatically sends an SMS and a WhatsApp message with a PDF attachment immediately after any call ends. For the SMS part, the send_message Flutter package or direct Android SEND_SMS permission can handle this . I'd use a foreground service with a wake lock and notification to keep the process alive . The critical piece is WhatsApp, as Meta does not allow automated messaging from the consumer app . The official WhatsApp Business API is the only legitimate path for automated outbound messages . I'd implement the API integration with template messages and attachment support . My approach: build in Kotlin with a foreground service, PhoneStateListener to detect call end, SMS via sendSMS() with direct flag, and WhatsApp Business API for reliable message delivery . PDF would be hosted with a short link. A few questions: Q1 – Do you have a WhatsApp Business API account or need help setting one up? Q2 – Will the SMS template and PDF be the same for all calls? Q3 – What Android version are you targeting? Happy to discuss details and suggest the best approach. Looking forward to hearing from you.

@RohanBoy17

Respected Sir, I carefully read your project and understand you need an Android utility that automatically reacts when a call ends, sends an SMS, and then shares the same message with a PDF via WhatsApp in a compliant manner. I can develop the app in Kotlin or Java with reliable background services, configurable message templates, PDF management, and Android 10+ compatibility. For WhatsApp, I'll implement a solution that complies with WhatsApp's policies, avoiding approaches that could risk account restrictions. With 5+ years of experience in Android development, background services, and API integration, I build reliable and maintainable applications. You'll work directly with me—no agency or middleman. My pricing is flexible based on the final implementation approach. I'll deliver complete source code, a signed APK, setup documentation, and deployment support. Looking forward to working with you! Best regards, Rohan M.

@astechnolabs1

Hi, I have 7+ years of experience in Android development using Kotlin/Java. I can build an app that automatically sends an SMS after a call ends, provides an easy way to update the message and PDF, and ensures reliable background operation on Android 10+. For WhatsApp, I'll implement only officially supported methods that comply with WhatsApp's policies. Please check my portfolio for similar Android projects. I'm available to start immediately. Best regards, AS Technolabs

@tymofiis9

Hi, I've built Android apps with background services, SMS features, and API integrations, so this is something I can help with. I can make the app automatically send an SMS after a call ends, then send the same message with a PDF through WhatsApp using a compliant method. I'll also add a simple settings screen so you can change the message and PDF whenever you need. The app will be stable, easy to use, and I'll provide the signed APK, full source code, and a clear setup guide. I'd be happy to talk through the details and share similar work. Thank you.

@nkumar36

Hi, I can develop this Android application exactly as per your requirements, including automatic SMS after calls, WhatsApp message integration, background service, and a simple settings screen. As I'm building my Freelancer profile, I'm happy to do this at a very low cost or even free in exchange for an honest review. I provide clean, well-documented code and long-term support. Looking forward to working with you.

@dmytrok16

✩░▒▓▆▅▃▂▁ Hello, Greetings , Good afternoon!v I am skilled mobile coder with skills including Mobile Development, Android SDK, PHP, Mobile App Development, Android App Development, Java, Kotlin and Android. Please contact me to discuss more about this project. Hope to hear from you soon

@bhargav922002

Hello, I'm bharghav, with 10 years of experience in Android development, specifically tailoring robust mobile solutions. My expertise in Java and Android aligns perfectly with your project's technical requirements. I understand you need an Android utility for automated post-call SMS and WhatsApp messages, including a PDF. I'll develop a stable Java-based Android application that runs reliably in the background, integrating a compliant WhatsApp send function. The app will feature an intuitive settings screen for easily updating message templates and the PDF. Let's connect in chat to discuss this further and refine the project details. Best regards,

@anantad12

Hi, Your requirements are clear, but I'd like to highlight one important point: fully automatic WhatsApp sending after a call ends isn't something I'd implement using unofficial automation, as it could violate WhatsApp's policies and risk the account being restricted. The recommended approach is to use Android's official sharing mechanisms or the WhatsApp Business Platform where appropriate. I'm Ananta, a Full Stack Developer with 3+ years of experience building Android and backend applications. Portfolio: https://omkar-sunil-dhapte.vercel.app. I can develop: Background service that detects call completion Automatic SMS from the device SIM Configurable message template & PDF Android 10+ compatible app with proper permissions Signed APK, complete source code, and documentation A couple of questions: Is it acceptable for WhatsApp to open the official share flow (policy-compliant), or do you specifically require unattended sending? Is this app intended for personal use or for a registered WhatsApp Business account? I use Ananta as my professional identity on this profile and personally handle all development. I'm available to start immediately.

@jyotsna222

My hardworking nature and being a single mom o I need work which will provide me self indispensable and money

@hlomlan

Your project requires a seamless Android utility that automates SMS and WhatsApp messaging post-call, maintaining stability even under system constraints. This is crucial for ensuring business owners can communicate efficiently without interruptions. To address this, I would develop the app in Kotlin, ensuring it runs persistently in the background and complies with WhatsApp’s policies. I will implement a user-friendly settings interface for easy updates to SMS content and the attached PDF, allowing for quick adaptations as needed. I have worked on similar utility apps focused on background processes and messaging automation, ensuring reliability and compliance. My approach prioritizes user experience and performance. What timeline do you envision for any additional features or adjustments after the initial delivery? **Why this approach:** - Directly addresses the core functionality and stability requirements. - Highlights relevant experience in building similar applications. - Encourages a dialogue on project scope and future needs.

@Apitide

Hi, the call-end automation you've described is achievable, but the WhatsApp part needs to be implemented in a policy-compliant way to avoid account restrictions. I'll build the application so it reliably detects incoming and outgoing call completion, automatically sends the SMS using the device's SIM, and then triggers WhatsApp messaging using an officially supported integration or approved automation approach. I've developed Android applications involving background services, Broadcast Receivers, foreground services, runtime permissions, and Android 10+ compatibility. The app will include a simple settings screen where you can update the SMS template and replace the PDF without modifying the code. I'll also optimize the background service to remain reliable with battery optimization guidance for supported devices. You'll receive a signed APK, clean and well-commented Java/Kotlin source code, and a concise setup guide covering permissions, template updates, and PDF replacement. My focus is on delivering a stable, maintainable solution rather than a workaround that could stop working after Android or WhatsApp updates. One question: should the WhatsApp message be sent to the same phone number involved in the call, or to a fixed predefined number regardless of who was called? If the workflow matches your expectations, let's discuss the preferred WhatsApp integration so I can start with the most reliable implementation.