Android Apk Developer and Modder with full and long term experience.

@softsolution2000

I have extensive experience in Android app development and optimization. I will dive into your Kotlin/Java codebase, identify bottlenecks, and refactor hot paths for improved performance using best practices like Coroutine/Flow, WorkManager, and Room. I will provide a new build with performance metrics to showcase increased responsiveness. I am confident in my ability to enhance RecyclerViews, animations, and background tasks. I understand your requirements and can adjust the budget based on further discussion. Let's discuss the project details and get started right away. Please review my 15 years of experience in my profile. Your satisfaction is my top priority. Looking forward to collaborating with you.

@extreamcode

Hi there, Asad - I’ve read your project clearly and I’m confident I can make your Android app feel instantly responsive on mid-range devices without UI redesigns. I specialize in Android performance tuning across Kotlin/Java codebases, with hands-on experience profiling with Android Studio, profiling tools, and modern patterns (Coroutine/Flow, WorkManager, Room optimisations). What I’ll do: I’ll profile the app end-to-end, identify hot paths in UI rendering, database calls, and network tasks, and refactor them to run off the main thread using best-practice async patterns. I’ll optimize RecyclerViews, diff utils, prefetching, and any heavy animations so frames stay smooth, then deliver a new build and a source patch ready to drop into Git. I’ll also provide a concise changelog and solid before/after metrics (cold start, frame time, jank percentage) to prove the gain. The work is purely performance-focused, not UI changes. 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 planning, I’ll target a compact engagement of 7-14 days with a deliverable patch and documentation within a single branch. Asad What are the target devices or minimum API levels you want me to optimize for, and do you have any existing performance baselines (cold start, frame times, jank targets) I should meet? Looking forward to your reply so we can finalize the exact plan.

@kamran2012

Interesting project, I will profile your APK with Android Studio Profiler, identify the main bottlenecks — cold start, jank frames, blocked main thread calls — and deliver optimized source patches with documented before/after metrics. For hot paths, I will move database and network operations off the main thread using structured Coroutines with proper dispatchers, optimize Room queries with indexed columns and pre-compiled statements, and flatten RecyclerView item layouts to reduce measure/layout passes. One often-overlooked gain: replacing `notifyDataSetChanged()` with `DiffUtil` alone typically cuts frame time by 30-40% on mid-range devices. Questions: 1) Which minimum Android API level and target devices should I benchmark against? Looking forward to discussing further. Best regards, Kamran

@Srashtasoft

Hi there, I have read your project requirement. You need an experienced Android developer to analyze your existing Kotlin/Java app, identify performance bottlenecks, and optimize execution by improving threading, database handling, and UI rendering to achieve faster, smoother performance on mid-range devices. We can profile your app using Android Studio tools, optimise critical paths using Coroutines/Flow, improve RecyclerView performance, move heavy operations off the main thread, and deliver an optimised build with measurable before/after performance metrics and clean code patches. A few questions: ============= Do you have access to the full source code, or is the work strictly on APK-level modification? Which areas currently feel slow (app launch, scrolling, API calls, database queries)? Are you using Room or any other database layer currently? Do you have baseline performance metrics, or should we establish them first? Best Regards, Srashtasoft Team

@arbu1499

Hi! I can dive into your existing Android app and focus purely on performance—profiling with Android Studio to identify bottlenecks and optimizing UI rendering, database, and network operations. I’ll refactor critical paths using Coroutines, Flow, and background workers to eliminate main-thread blocking and reduce jank, especially in RecyclerViews and animations. You’ll get a clean patch with measurable before/after metrics (startup time, frame drops, responsiveness) so the improvements are and proven. Looking forward for your positive response in the chatbox. Best Regards, Arbaz M

@rbtech1984

Hi There!!! ★★★★ ( Optimize Android App for max performance & smooth responsiveness ) ★★★★ Project understanding: I have read your requirement to improve existing Kotlin/Java Android app performance, reduce lag and jank, and make every screen feel fast on mid range devices. No UI redesign needed, only deep optimization, refactoring and speed improvements. ⚜ Android Studio profiling & bottleneck detection ⚜ Kotlin/Java hot path refactoring ⚜ Coroutines/Flow async optimization ⚜ Room & DB query tuning ⚜ RecyclerView & UI rendering improvements ⚜ Network/API call optimization ⚜ Clean APK build & patch delivery I am Android developer with strong experience in performance tuning and real-world app optimisation projects. Approach: I will profile the app, identify slow operations, move heavy tasks off main thread, optimize lifecycle handling and validate with performance metrics. Lets connect and discuss details. Warm Regards, Farhin B.

@technologiesit

With a decade's worth of experience in mobile app development and design, our team at Prajapati Technologies is well-poised to handle your Android Apk modification and optimization project. We have a proven track record of delivering excellent results under tight deadlines, without compromising on the quality or functionality of the final product. Our proficiencies lie in Java and Kotlin, and we are highly adept at using profilers like Android Studio to identify bottlenecks within code bases. To address these issues, we'll use advanced techniques like Coroutines/Flow, WorkManager, and Room optimisations to ensure that UI rendering, database calls, and network operations don't overload the main thread – boosting your app's performance significantly. Apart from this, we're also skilled in indirect Apk modification. So rest assured, if you need any adjustments, enhancements, or revamps done along the way, those modifications can be effortlessly incorporated into the final build. Hiring us would not only guarantee you superior results but also exceptional dedication to your satisfaction throughout the project completion.

@pinkeegupta

Hello I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development 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)

@vivekrl43

Dear client, I can update your exiting android app code with latest sdk, libraries and make it work with speed and light weight app, So that user can feel the smoothness of the app, I have more than 9 years of exp in apps and web development.

@Arunmohan001

Hi, I specialize in Android performance optimization and can help make your app significantly faster and smoother on mid-range devices. Approach: • Profile app using Android Studio Profiler (CPU, Memory, Network, GPU) • Identify bottlenecks in UI rendering, database, and network layers • Refactor hot paths using Coroutines/Flow, WorkManager, and optimized Room queries • Improve RecyclerView performance (diffing, view recycling, pagination) • Reduce jank and frame drops (UI thread cleanup, animation optimization) I’ll provide a patched codebase, optimized build, and a clear report with before/after metrics (startup time, frame rate, jank %). Ready to dive into your codebase immediately.

@GameOfWords

With my broad experience in mobile app development, including a strong background in Kotlin and Java, I am confident about enhancing the performance of your Android application. My proficiency in leveraging Android Studio profiler can enable me to identify the bottlenecks and subsequently propose efficient solutions. I have vast expertise in employing best practice techniques such as Coroutines/Flow, WorkManager, Room optimisations, that can significantly improve performance by minimizing lags related to UI rendering, database calls, and network operations. Being aware that you desire increased responsiveness while targeting even mid-range devices, I commit to delivering noticeable improvements. My ability to squeeze extra milliseconds out of RecyclerViews, animations, and background tasks is complemented by my track record in skilful APK modification. Beyond my proficiency in Android app development, I have substantial competency in WordPress Development as well. This makes me not only familiar with producing high-performing digital platforms but also capable of ensuring the incorporation of your new build and source patch into Git without any hitches. I’d be thrilled to steer this project towards success by revamping your APK for optimal performance. I look forward to sharing impactful results that align with your vision of making every screen and interaction feel instantly responsive on all devices.

@AppTechiez

Dear Client, Your requirement strongly resonates with the kind of work I’ve been doing over the years—especially around making apps feel fast, smooth, and reliable in real-world conditions. With 11+ years in Android development, I’ve spent a significant part of my work improving performance in live products—whether it’s reducing cold start time, smooth UI, or optimizing background tasks and data flow. I usually begin to understand real bottlenecks, and then carefully refactor critical paths to ensure everything runs efficiently off the main thread while keeping the codebase clean and maintainable. I’ve handled similar optimizations across complex apps, and I always back changes with measurable improvements and clear documentation. I also bring some recent Flutter experience, which adds a broader perspective on performance across platforms. I would genuinely appreciate the opportunity to contribute to your project. Warm regards, Manish Dhanani

@Riasatali78

I am an experienced Android developer skilled in Kotlin/Java with strong expertise in performance profiling and optimization. I can refactor your codebase to remove bottlenecks, improve responsiveness, and deliver measurable before/after performance gains with a clean patch and change log

@mykhaylob4

Hi✋ Senior Android performance specialist – Kotlin/Java, long-term experience. Approach: ✔️ Profile – Android Studio Profiler (CPU/memory/network) + Baseline Profiles ✔️ Optimize hot paths – Move DB/network off main thread (Coroutines/Flow), RecyclerView binding, view binding, image caching (Coil/Glide) ✔️ Specific fixes – Reduce overdraw, fix jank, optimize layouts (ConstraintLayout), WorkManager for bg tasks, Room query indexing ✔️ Deliverables – New APK + source patch + before/after metrics (cold start, frame time, jank %) Experience: 7+ years Android, multiple performance optimization projects. Let's make your app instantly responsive.

@letscms

Hello, This is exactly the kind of performance-focused optimization work I specialize in—improving real-world responsiveness without changing UI/UX. I can dive into your existing Android codebase, profile it deeply, and deliver measurable speed improvements across key areas. My approach: Profiling: Use Android Studio Profiler to identify CPU, memory, network, and rendering bottlenecks UI Performance: Optimize RecyclerView, reduce overdraw, fix jank, and improve frame rendering Threading: Move heavy work off the main thread using Coroutines/Flow, WorkManager Data Layer: Optimize Room queries, caching strategies, and network calls Startup Time: Improve cold start, lazy loading, and dependency initialization I will provide a clean patch + updated build, along with a before/after performance report (startup time, frame drops, jank) so you can clearly see the gains. I focus on practical optimizations that make apps feel instantly responsive—even on mid-range devices. Quick questions: Q1. Is the codebase primarily Kotlin, Java, or mixed? Q2. Are you using Room/Retrofit already, or custom DB/network layers? Q3. Any specific screens where lag is most noticeable? I am ready to start immediately and deliver fast, measurable improvements. Best regards, Jitendra Sharma

@mayankinnovative

Hi, As per my understanding: You have a functional Android application that requires deep performance tuning to ensure a lag-free experience on mid-range devices. The objective is not visual but technical: identifying bottlenecks in the Kotlin/Java code and optimizing UI rendering, database access, and network calls to eliminate jank and reduce cold start times. Implementation approach: Profiling: I will begin with a deep dive using Android Studio Profiler and Perfetto to capture "before" metrics for cold starts, frame rendering times, and memory leaks. Main Thread Cleanup: I will refactor heavy operations using Kotlin Coroutines and Flow to move blocking tasks away from the UI thread. Database & List Optimization: For the RecyclerViews, I’ll implement DiffUtil and optimize Room queries (indexing/threading) to ensure smooth scrolling without frame drops. Background Efficiency: I will utilize WorkManager for non-immediate tasks and optimize the networking layer to reduce latency. Verification: I will deliver the source patch with a detailed log and a side-by-side performance report showing the reduction in jank percentage and improved responsiveness. A few quick questions: Is the current codebase primarily built with XML views or Jetpack Compose? Are you using any specific third-party libraries for network (like Retrofit) or image loading that might be contributing to the overhead?

@letswork92

I understand that your main challenge is optimizing the performance of your existing Android application to ensure seamless interactions, especially on mid-range devices. With over 12 years of experience in full-stack development and mobile app automation, I can help you identify and eliminate the bottlenecks in your Kotlin/Java codebase. Utilizing tools like the Android Studio profiler, I'll analyze critical areas such as UI rendering, database calls, and network operations. My approach will incorporate best practices using Coroutine/Flow, WorkManager, and Room optimizations to refactor or rewrite high-impact paths for improved responsiveness. You'll receive a new build along with a detailed changelog and before/after performance metrics showcasing enhancements in cold start time, frame rates, and jank percentage. Could you share more about the specific screens or interactions where you’ve noticed performance issues? This will help tailor my approach effectively.

@sonika1419

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.

@rahulb058

As a veteran Full-Stack Developer, I have been drastically improving and scaling up Android applications like yours for years. Proficient in Kotlin and Java, I'll start by diving into your existing codebase to quickly identify the bottlenecks slowing down your app. With the help of advanced profiling tools like Android Studio profiler, we can dissect every nook and cranny to optimize UI rendering, database calls, and network operations. I bring deep expertise in incorporating best practices such as Coroutine/Flow, WorkManager, and Room optimizations - all aimed at squashing performance-hindering issues that have gradually accumulated over time. With my Kotlin proficiency and skill in gracefully migrating processes off the main thread, I will guarantee an instant responsiveness across all devices - enabling you to provide a consistent experience to all your users from the high-end to mid-range Android users. You'll receive a comprehensive report highlighting the changes made and performance improvements made evident through concrete before/after numbers. My aim is simple - not just to deliver improved performance but optimize your product for profitability by boosting user engagement. So let's join forces, drop those milliseconds from RecyclerViews, animations, and background tasks liberating your application's true potential