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I have a fully-functioning Android application that now needs a round of feature enhancement. The existing code compiles and runs, but I want fresh capabilities added and, while we are at it, a careful verification of the current implementation to be sure no hidden issues slip through. Here is what I need you to do: • Make application compatible to Latest Android version • Verifying issue • Bug Fixes • Supply an updated APK, source commit, and concise change log so I can track exactly what was done. Automated unit tests for the new code are expected. Acceptance criteria 1. Project builds without errors in the latest stable Android Studio. 2. All agreed functionalities work on Android 8.0+ devices. 3. No critical or high-priority warnings in Lint or Play Console pre-launch report. 4. Change log and test coverage are delivered alongside the final commit. If you are comfortable working in XML, Kotlin (the app’s main language) and are ready to collaborate closely over Git and a short Slack channel, let’s move forward.
Project ID: 40710806
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With over 6 years of experience in Android app development, I believe I'm the ideal candidate for your project. Firstly, I'm well-versed in all the essential languages you mentioned: XML, Kotlin, and Java, which are crucial for enhancing the compatibility and fixing any bugs in your app. Additionally, my solid background in Mobile App Development means that not only can I make the necessary update to ensure compatibility with Android version 8.0+, but also effectively verify issues and resolve any hidden problems. Moreover, my ability to build projects without errors in the latest stable Android Studio will help streamline the process while ensuring a high-quality final product. I am also familiar with Lint and Play Console pre-launch reports to fix any remaining issues that may be flagged by these tools.
₹1,750 INR in 3 days
4.0
4.0
51 freelancers are bidding on average ₹8,017 INR for this job

Dear client, I can update your existing kotlin+xml based android app, I have more than 10 years of exp in apps and web development. I can update your code to support latest android version and fix the issues.
₹10,000 INR in 9 days
6.3
6.3

Hello Sir, I have already worked on similar types of website and software development projects and I am confident that I can successfully handle your project. I am a full-time freelancer with **17+ years of experience** in web development, software development, automation, and API integrations. My expertise includes: * Android app development * ASP.NET C# web and software development * Python automation and web scraping (Amazon, Instagram, Facebook, Google Maps, LinkedIn, Telegram, and other custom scraping solutions) * JavaScript, jQuery, AJAX, Bootstrap, HTML5 * Microsoft SQL Server database development * Payment gateway integration * SMS, Email, Banking, Financial, and Insurance API integration * Custom automation bots and workflow automation software I focus on delivering **high-quality, scalable, and reliable solutions** with clean code and long-term support. Please contact me in private chat so we can discuss your requirements in detail. I can also show you a **demo of similar projects** I have completed. Looking forward to working with you. Thanks & Regards
₹1,500 INR in 5 days
5.7
5.7

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
₹2,000 INR in 1 day
6.7
6.7

Hello, We can enhance and maintain your existing Android application using **Kotlin, XML and Android SDK**, while carefully reviewing the current implementation to identify and resolve hidden issues. ### What We’ll Handle • Upgrade compatibility to the latest stable Android version • Review the existing codebase and verify current functionality • Fix functional, UI and compatibility-related bugs • Check Android 8.0+ compatibility • Resolve critical/high-priority Lint and build issues • Review Play Console pre-launch compatibility issues • Add automated unit tests for new/updated functionality • Test across multiple Android versions and screen sizes • Maintain clean Git commits with clear changes ### Deliverables • Updated, production-ready APK • Complete source-code commit • Concise changelog of all modifications • Unit tests and test coverage for new code • Build/test documentation where required We can work closely through **Git and Slack** and follow your existing project architecture rather than unnecessarily rewriting stable parts of the application. Our Android experience includes **Kotlin, Java, Android SDK, Android Studio, APIs, Firebase, Git and Play Store deployment**. We can first review the existing codebase, identify compatibility/technical issues, and then proceed with the enhancement work. Best regards, **Rajeshwar Infotech**
₹12,500 INR in 7 days
5.9
5.9

Hi, I can help bring your existing Android application up to the latest Android requirements while keeping the current functionality stable and production-ready. I have experience with Kotlin, XML, Android Studio, Gradle, Git and debugging existing Android applications. I’ll first review the current implementation, verify compatibility and identify any issues before making the required changes. My focus will be on: * Updating the app for the latest stable Android version and Android Studio requirements. * Verifying existing functionality and fixing bugs or compatibility issues. * Testing across Android 8.0+ and checking Lint/Pre-launch related issues. * Adding automated unit tests for the newly changed functionality. * Delivering the updated APK, source commit and a clear change log with test coverage details. I’ll work carefully within the existing codebase rather than unnecessarily rewriting working parts, and can collaborate through Git and Slack throughout the process. The goal is a clean build, stable functionality and a well-documented final release. Looking forward for connecting. Best Regards, Nisha
₹27,000 INR in 27 days
5.6
5.6

I can take this on as a focused modernization and stabilization pass, keeping the current XML/Kotlin codebase intact rather than turning it into a rewrite. I’m a senior Android engineer with 9+ years of experience working with legacy apps, Android SDK migrations, deprecated APIs, XML layouts, Kotlin, Gradle, Play Console issues, Lint, crash fixing, and production releases. I’d begin with a code and build audit, update the project for the latest Android requirements, verify the existing flows, then fix the compatibility and runtime issues I find. I’ll also add unit tests around the new/changed logic so the update is easier to maintain going forward. Final delivery will include the updated APK, source commit, clean Git history, concise changelog, and test coverage. I’ll also verify Android 8.0+ compatibility and address any critical/high-priority Lint or pre-launch issues before handover. I’m comfortable collaborating through Git and Slack and can work directly inside the existing project without unnecessary refactoring.
₹3,000 INR in 1 day
5.7
5.7

I see you're looking to enhance that Android app while making sure it's compatible with the latest version. I'll start by reviewing your current implementation to identify any hidden issues and bugs, my focus will be on updating the code to meet the latest Android standards and fixing any existing problems. And I can have everything ready for you to test first—no need to award the project or create a milestone until you're satisfied with the results. This way, you can make sure everything works perfectly on Android 8.0+ and meets your acceptance criteria. I'm ready to start immediately, and I look forward to collaborating closely with you on this project. Rajavel - Android Developer specializing in Kotlin and XML, which I think is really cool!
₹9,999 INR in 10 days
5.2
5.2

Hi, You need your live Kotlin Android app updated for the latest Android/SDK, verified for hidden issues, bugs fixed, and shipped with an updated APK, Git commit, changelog, and unit tests for new/changed code — builds clean in current Android Studio, Android 8.0+, no critical Lint/Play pre-launch problems. I maintain production Kotlin/XML apps: targetSdk bumps, permission/behavior changes, bug fixes, and Git + Slack collaboration. Once you share the repo and the “fresh capabilities” list, I’ll confirm scope and turn around a clean milestone. Best regards
₹5,000 INR in 7 days
4.8
4.8

Hello there, I understand that you are looking for enhancements to your Android application to make it compatible with the latest Android version. I will ensure to verify existing issues, fix bugs, and provide an updated APK, source commit, and detailed change log. I am proficient in XML, Kotlin, and have experience collaborating over Git and Slack channels. Let's discuss further details and how I can assist you with this project. Thanks,
₹7,000 INR in 4 days
4.4
4.4

As an experienced Full Stack Developer with a speciality in Kotlin and Android App Development, I have all the necessary skills to make your existing application fully compatible with the latest Android version. I'm also comfortable working with XML for layouts and have deep understanding of Java for Android app development. You can rely on me to effectively verify any issues, fix bugs, and deliver an updated APK along with a concise change log as per your requirements. With my focus on delivering scalable, high-performance applications and ensuring long-term maintainability, I can guarantee that your app won't just be updated, but future proofed as well. Besides that, I'm well-versed in conducting automated unit tests which will substantially decrease the possibility of any missed issue or bug. My commitment lies not only in building great applications but also ensuring they meet critical quality benchmarks. Additionally, being available during US, UK, and Australian business hours means seamless communication throughout this project. Pairing that with my solid Git and Slack collaboration skills ensures that this project is done smoothly without any communication hurdles. Looking forward to being part of your app's enhancement journey!
₹7,000 INR in 7 days
4.4
4.4

I can expertly update your Android application to ensure full compatibility with the latest Android SDK versions, perform thorough bug verification, and implement your new feature requirements using clean, modern Kotlin code. With over 10 years of experience in native Android development, I will ensure your app builds cleanly in the latest Android Studio, passes all lint and Play Console checks smoothly, and delivers pristine performance with accompanying unit tests and a clear changelog. Let's connect in chat to discuss the specific features you want to add and get started right away!
₹1,500 INR in 7 days
4.0
4.0

Being adept in mobile app development, especially in working with the Android platform, I possess the skills and experience necessary to tackle your project effectively. With numerous successful deployments under my belt, including building adaptive systems, SaaS applications, and marketplaces, I am armed with the ability to transform your existing Android application into a user-friendly, latest version compatible product. I understand the importance of detailed verification and bug fixes to ensure a smooth and seamless operation. For this reason, I approach projects like yours with a critical eye for hidden issues that can potentially disrupt functionality. Moreover, my experience in working with automated unit tests will guarantee not just the addition of fresh capabilities but stable performance and reduced future bugs. Equally important to skill set is compatibility within teams. I am comfortable collaborating on Git and via Slack channel as stated in your project description. With me onboard, you'll gain access to my efficient work style characterized by quick turnover without compromising on quality. Also, I commit to delivering clean documentation-a crucial aspect for post-project maintenance and further enhancement. Choose me for a collaborative yet efficient execution of your project where your satisfaction is my paramount priority.
₹1,500 INR in 4 days
3.2
3.2

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu
₹7,000 INR in 7 days
2.7
2.7

Hi, I can review the Kotlin/XML app, update the build and Android compatibility settings, then fix the agreed issues with focused tests. I will check permissions, background behaviour and key screens from Android 8 onward, and deliver an APK, Git commit and changelog. My ₹12,500 estimate covers the compatibility pass and up to two isolated bugs in seven days; new features need a defined list. Can you share the repo, current target SDK and issue steps?
₹12,500 INR in 7 days
2.4
2.4

==== Hi - Truong here ==== "LATEST ANDROID VERSION COMPATIBILITY" — the existing app works today, but needs a safe upgrade without breaking Android 8.0+ behavior. I’d first build the current project on the latest stable Android Studio, then update the Android SDK/Gradle dependencies and fix compatibility issues found through Lint and runtime testing. I’ll verify existing flows before changing them, add unit tests for new/fixed logic, and test the APK across Android 8.0+ scenarios. For the final handoff, I’ll keep the changes isolated in Git, provide the updated APK, source commit, test coverage, and a concise changelog. I’ll also check the Play Console pre-launch issues rather than treating a successful local build as the finish line. Which Android version and targetSdk is the current project using? Looking forward to work with you.
₹7,000 INR in 1 day
2.0
2.0

Hello, I understand you need your existing Android application updated for the latest Android version, along with issue verification, bug fixing and thorough testing. The goal is to deliver a stable, compatible build without breaking existing functionality. Here’s what I can provide: Upgrade the project for the latest Android SDK/Android Studio while maintaining Android 8.0+ support. Identify and fix existing bugs, warnings and compatibility issues through proper testing. Deliver updated APK, Git source commit, concise changelog and unit tests for new code. I bring over 4+ years of experience in Kotlin, Java, XML, Android SDK, Git and Android Studio, with strong focus on performance, compatibility and clean implementation. Just to clarify a few things: What is the current target/compile SDK version? Do you already have a list of known issues to verify? Please come to the chat box to discuss more about your project. Best regards Indresh Kushwaha
₹10,000 INR in 7 days
1.8
1.8

Your Android app already works, but needs an update for the latest Android version, verification of the existing implementation, bug fixes, and a clean tested release with full Git tracking. I have 9+ years of software development experience and can work with Kotlin, Java, Android SDK, Android Studio and Git-based workflows. I’ll review the current project first, update compatibility and dependencies carefully, fix confirmed issues, and add unit tests for the new or changed code. I’ll also run Lint and verify the main flows on Android 8.0+. The final delivery will include the updated APK, source commit, concise changelog and test coverage so you have a clear record of every change. I’m comfortable collaborating through Git and Slack. Can you share the current Android project and target Android version so I can review the existing build configuration?
₹6,000 INR in 2 days
1.4
1.4

Hi, there You have a working Android app in Kotlin that needs bringing up to the latest Android version, plus a verification pass, bug fixes, and the agreed new features — delivered with an updated APK, source commit and change log. You need: - Compatibility with the latest Android version and target SDK - A verification sweep for hidden issues in the current implementation - Bug fixes across the agreed functionality - Updated APK, Git commit and a concise change log - Automated unit tests for the new code - Clean build on the latest stable Android Studio, working on Android 8.0+ My approach: start by building the project and running Lint to see the current state, then handle the target SDK and compatibility changes, fix the identified bugs, add the new features with unit tests, and finish with the APK, commit, change log and a Play Console pre-launch report check. I work with Kotlin, Java, Android, Android SDK, Android Studio, Git, unit testing and mobile app development, and I'm happy to collaborate over Git and Slack. Questions: 1. Can you share the repo and the feature list to add? 2. What's the current target and compile SDK? 3. Any specific bugs already known? 4. Which Android version is the app currently built against? Happy to discuss and get started. Best regards, Muheebwa
₹11,500 INR in 3 days
0.7
0.7

I can upgrade your exisitng android app to be compatible with 8.0+ devices. This involes bug fixes, source code commit and apk version that meets curent Play Console requirements. Let's have a chat.
₹12,000 INR in 7 days
0.6
0.6

As an Android expert, I am confident in my ability to make your application compatible with the latest Android version and address any lingering issues. My strong understanding of XML, Kotlin, and my extensive experience working closely over Git and Slack channels make me the ideal candidate for this job. In addition to my mobile app development skills, I bring a unique set of skills including AI/ML expertise which can be leveraged for enhancing the intelligence of your application alongside superior data processing capabilities. Being well-versed in Java, REST API development, and more, I am positive that exciting new functionalities can be smoothly implemented in your existing project seamlessly adhering to best practices while ensuring minimum disruption. Moreover, I take quality assurance very seriously! Through integrated automated unit testing techniques and a fine combing of your codebase, I can verify that all functions perform optimally post-upgrades while providing a concise documented log of changes made. Given my penchant for clean and maintainable code combined with a commitment to meeting deadlines and solving real-world problems effectively, choosing me for this project means you are getting excellent value for your money. Let's upgrade and revamp your app effortlessly!
₹7,000 INR in 7 days
0.0
0.0

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