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Motion Interaction Developer (Shake-Based System) We are looking for a highly skilled mobile developer to build a professional motion-based interaction system for a mobile app, using device shake gestures instead of touch interactions. This is NOT a basic implementation. We are seeking an expert-level solution with strong UX stability and zero accidental triggers. ⸻ Project Scope Implement a Shake-Based Directional Interaction System that allows users to: Post Navigation • Forward shake → Next image/video • Backward shake → Previous image/video Rating System • Right shake → Show rating overlay • Additional right shakes → Increase stars (1 → 5) • Left shakes → Decrease stars (5 → 1) • Left shake at minimum → Hide rating overlay Rating Confirmation • Forward shake after rating selection → Submit rating → Hide overlay → Continue browsing ⸻ Requirements (Mandatory) • Advanced motion processing (not simple shake detection) • Proper filtering & noise reduction to avoid false triggers • Directional shake recognition (forward / back / left / right) • Clear state management (e.g. browsing, rating, confirming) • Consistent behavior across devices Preferred Skills • iOS: Core Motion / DeviceMotion • Android: SensorManager / Accelerometer / Gyroscope • Flutter: Allowed only if native motion processing is used • Experience with Sensor Fusion & DSP filtering is a big plus ⸻ Demo Video Requirement (Important) Applications without a demo video will NOT be considered. Please provide: • A short demo video showing: • Directional shake detection • Motion-based UI interaction • Stability (no random triggers) • The demo can be: • A test app • A prototype • A previous project ⸻ Not Accepted • Basic “shake package” implementations • Unfiltered accelerometer triggers • Motion controls that activate accidentally
Projekt-ID: 40114541
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91 Freelancer bieten im Durchschnitt $450 USD für diesen Auftrag

Hello! I’d be excited to build a production-grade, shake-based interaction system for your app this is exactly the kind of motion-UX challenge that benefits from careful signal processing rather than off-the-shelf shortcuts. I understand this is not a simple “shake to trigger” feature, but a precise, directional, state-aware motion system with zero accidental activation. Here’s how I’d approach your project: • Use native motion pipelines (Core Motion on iOS / SensorManager + gyro on Android) with sensor fusion • Apply filtering (high-pass/low-pass, smoothing windows, thresholds) to eliminate noise and random triggers • Implement directional vector analysis to reliably distinguish forward/back/left/right shakes • Design a clear interaction state machine (browsing → rating → confirming) so gestures behave predictably • Calibrate dynamically across devices to ensure consistent sensitivity and UX stability What you’ll get from me: • A robust, reusable motion-interaction module (not a plugin wrapper) • Clean, well-documented code ready to integrate into your app • A demo implementation clearly showing directional detection and stability • Guidance on UX tuning so gestures feel intentional, not gimmicky If you’d like, we can start by aligning on target platforms and sensitivity rules, then move quickly into a working prototype. Best regards, Jasmin
$500 USD in 7 Tagen
9,3
9,3

HELLO, WE HAVE WORKED ON SIMILAR MOTION-BASED INTERACTION SYSTEMS AND CAN PROVIDE DEMO EXAMPLES. WE COMPLETELY UNDERSTAND YOUR REQUIREMENT FOR AN EXPERT-LEVEL SHAKE-BASED NAVIGATION AND RATING SYSTEM WITH ZERO FALSE TRIGGERS. I have 10+ years of experience in mobile development, specializing in iOS Core Motion, Android SensorManager, and advanced motion processing with sensor fusion and DSP filtering to ensure accurate directional gestures. MY APPROACH: Implement forward/back/left/right shake recognition with noise filtering State management for browsing, rating, and confirmation flows Ensure cross-device stability and consistent UX Deliver a prototype/demo video showing directional shake detection, UI interactions, and zero accidental triggers I WILL PROVIDE 2 YEARS FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I EAGERLY AWAIT YOUR POSITIVE RESPONSE. THANKS.
$494 USD in 7 Tagen
8,3
8,3

Hello, HAVE HANDS-ON EXPERIENCE WITH SUCH PROJECT. I have 11+ years of professional experience in mobile development, including advanced sensor-driven interfaces, and I confidently understand your requirement. The goal is to build a robust, directional shake-based navigation and rating system with zero accidental triggers and consistent UX across devices. Core features: -->> Forward/backward shake for browsing media -->> Left/right shakes for rating overlay and star adjustments -->> Shake-to-submit functionality with state-managed confirmation -->> Advanced motion processing with filtering and noise reduction My approach: clean architecture, precise sensor fusion, native motion APIs (iOS Core Motion / Android SensorManager), and an agile workflow with iterative demo verification. I’d like to discuss device testing range and sensitivity thresholds in chat to proceed further. Thanks, Julian
$300 USD in 7 Tagen
8,4
8,4

Hello, I came across your project and found it truly interesting. With over eight years of hands-on experience in this field, I have successfully delivered high-quality solutions to clients worldwide. My dedication to excellence is reflected in the 180+ positive reviews from satisfied clients. I’d love to bring this expertise to your project and ensure outstanding results. However, I do have a few important points I’d like to clarify to align perfectly with your vision. Let’s connect via chat, where I can also share relevant examples of my past work. I'm looking forward to hearing back from you! Best Regards, Divu.
$750 USD in 8 Tagen
6,2
6,2

Hello, “Wishing you a very Happy New Year 2026! I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Nikhil
$750 USD in 7 Tagen
6,3
6,3

As an experienced Software Engineer with a Master's degree in Embedded Systems, I have the technical prowess you're looking for in this project. Having worked within IoT development and firmware engineering, I am well-versed in efficient C/C++ programming and microcontroller-based projects. This knowledge is vital as it allows me to fully understand the advanced motion processing, filtering, and noise reduction techniques necessary to implement your motion-based interaction system. Moreover, I am proficient in Android and Flutter, if required, which coincide directly with your preferred skills. In situations where native technology use isn't appropriate or doesn't deliver expected results, I have the skill necessary to integrate alternative options (such as Flutter), incorporating motion processing that behaves equivalent to The Core Motion / DeviceMotion or SensorManager / Accelerometer / Gyroscope. To provide you with a comprehensive understanding of my qualifications, I will supply a demo video showcasing key aspects of the project requirements: Directional shake detection, Motion-based UI interaction stability, and little-to-no accidental triggers. Rest assured that choosing me would mean selecting someone who can bring deep expertise, precision, and unrivaled enthusiasm to advance this motion-gesture navigation system.
$750 USD in 15 Tagen
5,8
5,8

Hi There!!! ⚜⭐⭐⭐⭐⚜(( Advanced shake-based motion interaction system with precise directional control ))⚜⭐⭐⭐⭐⚜ Creating a motion-gesture navigation system that feels natural and avoids accidental triggers requires advanced sensor processing and robust state management. Your goal of directional shakes for browsing, rating, and confirmation demands precision and stability across iOS and Android. With 9+ years in mobile development and deep experience with Core Motion, SensorManager, and sensor fusion techniques, I focus on reliable, high-quality motion-driven UX. Key features I will deliver: * Directional shake recognition with noise filtering and false-trigger prevention * Smooth state management for browsing, rating, and confirmation flows * Cross-device consistent behavior with demo video showcasing performance I can build a professional, demo-ready prototype that proves accuracy and stability. Let us discuss implementation strategy and timeline to create this next-level interaction system. Warm Regards, Farhin B.
$256 USD in 10 Tagen
6,4
6,4

Hi Hassan, I am a skilled mobile developer ready to create a professional motion-based interaction system for your mobile app. My solution will include advanced motion processing, directional shake recognition, and clear state management for a stable UX. Let's discuss further to ensure we meet all project requirements. Regards, Sai Bhaskar
$420 USD in 10 Tagen
5,4
5,4

As a seasoned mobile developer with over 8+ years of experience in Android and Flutter, I believe I am perfectly suited for this challenging project. I have a deep understanding of motion processing and the necessary skills to handle complex gestural interactions, such as shake recognition. As an expert in Core Motion, DeviceMotion, SensorManager, Accelerometer, Gyroscope, and using native motion processing tools in Flutter, I can deliver a high-performance system tailored to your specific demands. In the past, both working as a lead developer in companies and as an individual freelancer has honed my ability to effectively manage projects, steering them smoothly towards completion. Having delivered over 150 significant projects both independently and leading teams of seven members along with managing 20+ satisfied customers globally including those in Europe and America demonstrates my commitment towards excellence. Also, being skilled at integrating various third-party APIs like Google API, Facebook API etc., I ensure seamless compatibility across your desired devices.
$500 USD in 7 Tagen
6,2
6,2

Hi there, Good afternoon I am Talha. I have read you project details i saw you need help with Mobile App Development, iPhone, Objective C, Interaction Design, Android, Mobile Development, Flutter and App Design I am excited to submit my proposal for your project, which focuses on a comprehensive project plan. To begin, we will thoroughly understand your project's objectives and requirements, ensuring alignment on scope and goals. We will provide a clear and realistic project timeline with manageable milestones to ensure timely completion Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan
$250 USD in 14 Tagen
5,5
5,5

Hi, I have reviewed the details of your project. At Mkaits Technologies, we specialize in creating advanced motion-based interaction systems for mobile applications. Our team has extensive experience in implementing precise shake gesture recognition with robust filtering and noise reduction, ensuring zero accidental triggers and consistent performance across devices. Our approach involves utilizing native sensors such as Core Motion on iOS and SensorManager on Android to develop a custom, noise-resistant motion processing algorithm. We will implement directional shake detection with clear state management, enabling seamless user interactions for navigation and rating. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in the chat. Looking forward to your response. Best regards, Mughiraa
$500 USD in 7 Tagen
5,0
5,0

⭐⭐⭐⭐⭐ Build a Shake-Based Interaction System for Your Mobile App ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project requirements and see you are looking for a Motion Interaction Developer. You need an expert-level solution, and Zohaib is here to help you! My team has successfully completed 50+ similar projects for motion-based interaction systems. I will create a robust system using device shake gestures, ensuring strong UX stability and zero accidental triggers. ➡️ Why Me? I can easily create your shake-based interaction system as I have 5 years of experience in mobile development, focusing on motion processing, UX design, and system stability. My expertise includes advanced motion detection, state management, and noise reduction techniques. Additionally, I have a strong grip on iOS and Android development, ensuring a seamless experience across devices. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I'm looking forward to connecting with you! ➡️ Skills & Experience: ✅ Motion Processing ✅ UX Design ✅ State Management ✅ Noise Reduction ✅ DeviceMotion (iOS) ✅ SensorManager (Android) ✅ Accelerometer Integration ✅ Gyroscope Usage ✅ Flutter Development ✅ Sensor Fusion ✅ DSP Filtering ✅ UI Interaction Design Waiting for your response! Best Regards, Zohaib
$350 USD in 2 Tagen
5,1
5,1

Advanced Motion-Gesture Navigation System I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
$250 USD in 7 Tagen
5,1
5,1

Hi There!!! THE PROJECT GOAL IS TO DEVELOP AN ADVANCED SHAKE BASED MOTION GESTURE NAVIGATION SYSTEM WITH ZERO ACCIDENTAL TRIGGERS I have carefully studied your full project description including directional shake detection, forward back left right gestures, rating overlay flow, state management between browsing and rating, sensor fusion, noise filtering, and the requirement for stable behavior across different devices with demo proof. I am the best fit because I have worked deeply with mobile motion sensors and understand how to build reliable gesture systems beyond basic shake detection. • advanced directional motion processing with filtering and noise reduction • clear gesture state handling for navigation, rating and confirmation • consistent UX behavior using native motion APIs I will provide interaction design support, motion algorithm setup, testing across devices, clean documented source code, demo build, and basic deployment guidance which are essential needs for this project. I have 9+ years experience as a full stack developer. I have delivered motion controlled mobile apps, sensor based interaction prototypes, gesture driven navigation systems and experimental UX projects similar to your requirement. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$255 USD in 14 Tagen
5,0
5,0

Hi there, I’m excited about the opportunity to develop your Advanced Motion-Gesture Navigation System. With extensive experience in mobile app development and expertise in motion-based interaction systems, I’m confident in delivering a top-notch solution. I specialize in advanced motion processing, implementing noise reduction techniques to ensure alignment with your requirements and prevent accidental triggers. My background includes working with Core Motion and SensorManager, designing solutions that focus on user experience stability while maintaining clear state management. I will also provide a robust demo video showcasing directional shake detection, motion-based UI interactions, and stability. Looking forward to collaborating on this innovative project. Could you specify any preferred frameworks or technologies?
$400 USD in 6 Tagen
4,1
4,1

Hello!! I HAVE CREATED SIMILAR PROJECTS BEFORE ! With 8+ years in mobile development, I specialize in building advanced, motion-driven interfaces that are both intuitive and precise. I understand your goal is a professional shake-based navigation system with directional gestures, accurate state management, and zero accidental triggers. I will work full-time, dedicated to perfecting this system. → Implement forward/back/left/right shake detection with high stability → Integrate seamless rating overlays and confirmation flows → Ensure consistent behavior across iOS and Android devices My approach uses native motion APIs (Core Motion for iOS, SensorManager for Android) combined with filtering and sensor fusion techniques to prevent false triggers. Clear state management ensures browsing, rating, and confirmation flows work reliably, while maintaining smooth UX. I can also provide a short demo app showing precise gesture detection and stable UI interaction. I look forward to collaborating closely to deliver a robust, professional motion-gesture system that elevates your app experience. Best regards, Sushma
$300 USD in 7 Tagen
5,0
5,0

✅ FLUTTER ✅ REACT NATIVE ✅ JAVA /KOTLIN ANDROID ✅ IOS ✨HIGHLY RECOMMENDED✨ ***** NO UPFRONT PAYMENT ***** I can start immediately, Hi My name is Amarjeet Singh. I have read your job ( Advanced Motion-Gesture Navigation System ). I am full stack developer familiar with backend and frontend both website and mobiles apps. If you're seeking a reliable, experienced developer to bring your app ideas to life, let's connect and discuss how I can contribute to your success. I'm ready for any Interview or want to discuss anything. I am available at your comfort time and start your work...
$500 USD in 14 Tagen
4,1
4,1

Hi, Hassan! Motion-based controls often fail because of noisy sensor data and accidental triggers, so I focus on proper motion filtering, directional detection, and clear state handling to make shake interactions feel stable and intentional. I have strong experience working with mobile sensors and motion data, including accelerometer, gyroscope, and sensor fusion, and I don’t rely on basic shake packages or raw accelerometer values. I design motion systems with noise reduction, thresholds, and state management so gestures like forward, backward, left, and right shakes are recognized consistently across devices. I can implement clean browsing, rating, and confirmation states so the app always knows exactly what the user intends to do. I work independently, pay close attention to UX stability, and can provide a demo video that clearly shows directional shake detection, UI interaction, and zero random triggers. If you’re looking for a serious, production-ready motion interaction system, I’d be happy to build it.
$500 USD in 7 Tagen
3,8
3,8

Hello, I can build a fully directional, high‑stability shake‑interaction system using native motion pipelines on iOS (Core Motion) and Android (SensorManager + gyroscope fusion). I’ve delivered DSP‑filtered gesture engines before, including directional shake detection, noise suppression, and state‑driven UI flows with zero accidental triggers. I can provide a short demo video showing directional shakes, stable interaction, and clean state transitions so you can verify the UX quality before we proceed.
$450 USD in 5 Tagen
3,8
3,8

Hi there, I have carefully reviewed your project description for the advanced motion-gesture navigation system and I am excited about the opportunity to develop a professional, shake-based interaction system. I understand that you require precise directional shake recognition, advanced motion filtering, stable UX with zero accidental triggers, and seamless state management for browsing and rating workflows. Directional shake detection, forward/back navigation, left/right rating control, rating overlay management, shake-based rating confirmation, noise filtering, state management, cross-device consistency, demo prototype. I have 7+ years of experience in mobile app development, iOS Core Motion, Android SensorManager, accelerometer and gyroscope integration, DSP filtering, and native Flutter implementations and I focus on creating reliable, intuitive, and robust user interactions. Let us schedule a quick chat to align your vision and next steps. Best Regards, Prasham Jain
$254 USD in 14 Tagen
3,7
3,7

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