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Unity Mobile Developer Needed for App Cleanup + iOS Build (Ongoing $400–$500/mo) Project: Illusion Trails – Hiking Simulation App Platforms: Android (published), iOS (not yet published) Engine: Unity I’m looking for a reliable Unity developer to help maintain and improve an existing mobile app currently live on the Google Play Store. The app is stable but needs cleanup, world/environment fixes, navigation improvements, and an iOS build + App Store submission. This is an ongoing monthly role (10–20 hours/mo) for someone who is comfortable maintaining an existing Unity project rather than building a new one from scratch. What You’ll Work On Fixing navigation issues (player movement, pathing, transitions) Cleaning up scenes and improving environmental realism Optimizing performance for mobile Addressing minor bugs and polishing world interactions Preparing and submitting the iOS build to the Apple App Store Ongoing maintenance, updates, and small improvements Initial Paid Test Tasks To ensure a good fit, you’ll complete two small paid tasks: 1. Quick Code Review (30–60 minutes) Open the project, review structure, identify issues, and provide a short written summary of: What’s clean What needs improvement Any red flags Estimated effort for fixes 2. Improve One Small Environment Area Take a small portion of one scene and make it: More realistic Better lit Better optimized More visually coherent This shows your actual Unity skill and workflow. Required Skills Strong Unity experience (2021 or newer) Mobile optimization (Android + iOS) Experience publishing apps to both Google Play and Apple App Store Scene/world building and environment polish Navigation and movement system experience Ability to work with existing codebases Clear communication and reliable delivery Nice to Have Experience with hiking/walking simulation, open‑world, or exploration‑style apps Experience improving realism in natural environments Familiarity with mobile performance constraints Budget & Commitment $400–$500 per month 10–20 hours per month Long‑term maintenance role if the fit is good To Apply Please send: Links to Unity mobile apps you’ve published (Android and/or iOS) A short video or screenshots of past Unity environment work Your hourly rate Confirmation you can complete the two paid test tasks If you deliver well and communicate clearly, this will be a long‑term role. [login to view URL]
Project ID: 40582743
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Hello, ⚡ Your Unity mobile app aligns perfectly with my experience in environment polish and cross-platform publishing. ⚡ I am a Unity developer with expertise in scene building, performance optimisation, and iOS submission. I will deliver clean, reliable fixes and improvements. I have experience with similar projects. I am available to start immediately. Let's discuss your current project and test tasks. Best regards.
$140 USD in 1 day
0.0
0.0
72 freelancers are bidding on average $197 USD for this job

Hi, The main risk in a live hiking sim is keeping movement, scene polish, and mobile performance stable while the environment changes. I would prioritize navigation fixes and iOS publishing first, then refine the world without disrupting the existing Android release. I have worked on Unity mobile projects where the fastest path was to reproduce movement and pathing issues, review scene setup, and then improve camera, transitions, and interaction flow before larger content changes. For your test tasks, I would begin with a focused code review and improve one small area so you can assess both technical cleanup and visual quality. Initial focus: - Review project structure and core scripts - Identify movement and navigation weak points - Polish one scene area for realism - Optimize lighting and mobile performance - Prepare the iOS build and submission path Timeline: I can start with the review immediately and share first improvements quickly after reproducing the issues. One question: is the current movement system custom, NavMesh-based, or a mix of both?
$147 USD in 5 days
9.4
9.4

With over five years of Unity development experience, I am confident in optimizing Illusion Trails for iOS success. Let's start with a code review and enhancing an environment area. My expertise in mobile optimization and scene building align with your needs. Looking forward to showcasing my skills and boosting user engagement.
$225 USD in 5 days
6.8
6.8

Hello, I have carefully reviewed your project requirements and understand your vision for maintaining and improving Illusion Trails, including navigation fixes, environment polish, mobile optimization, bug fixing, and preparing the iOS build for App Store submission. With 9+ years of Unity development experience and 200+ successfully developed games, I will deliver clean, optimized, and maintainable improvements while ensuring smooth performance across Android and iOS. You will get: 1. Quality optimized work 2. 100% client satisfaction 3. Fast delivery 4. Suitable pricing 5. Unlimited revisions 6. Complete NDA & IP protection (project security is our top priority) Available to start immediately and happy to complete the two paid test tasks. Come inbox & let’s get started. Best regards, Sohaib Pasn Games
$750 USD in 30 days
6.8
6.8

I can help enhance your existing Unity mobile app by focusing on cleanup, navigation improvements, and preparing the iOS build for submission. My approach will ensure a polished user experience while maintaining the app's current stability. I noticed you are looking for someone to address specific navigation issues and improve environmental realism. I understand the importance of optimizing performance for mobile, which is crucial for user retention. With strong expertise in Unity and mobile optimization, I am well-equipped for this role. We have 20+ 5-star reviews on similar projects! My experience includes publishing apps to both Google Play and the Apple App Store, ensuring a seamless transition. Regards, InterconnectBPO
$150 USD in 7 days
6.9
6.9

We will successfully deliver your Illusion Trails iOS build and ongoing app enhancements. Your existing Android app requires cleanup, navigation improvements, and an iOS launch, which aligns perfectly with our mobile development expertise. • Thoroughly review the Unity project structure and codebase for efficient mobile optimization. • Precisely address navigation, pathing, and environmental realism within your scenes. • Prepare, optimize, and submit the iOS build for seamless Apple App Store publication. We have successfully published multiple Unity mobile applications to both Google Play and the Apple App Store. Can you share access to the project for the initial code review and environment task? Thanks, Seba
$250 USD in 7 days
6.7
6.7

I can handle your Illusion Trails cleanup and get your iOS build ready for the App Store immediately. I am very comfortable working with existing Unity codebases and know how to optimize scenes for mobile performance. I specialize in environment polish and navigation improvements, which aligns perfectly with your requirements for this project. I have published apps on both the Play Store and App Store and understand the submission process well. I am happy to complete the two paid test tasks to demonstrate my workflow and code quality. I have strong experience with Unity 2021+ and mobile optimization, ensuring that your hiking simulation remains stable and performant across devices. My focus is on writing clean, maintainable code so that future updates are seamless. I am looking for a long-term role and am confident I can provide the consistent, reliable support you need to keep Illusion Trails running smoothly.
$220 USD in 7 days
6.4
6.4

Hi I’ll develop and optimize your Unity mobile app with smooth performance, responsive gameplay, and clean, scalable code while ensuring a seamless experience on both Android and iOS. Tejal
$200 USD in 5 days
6.1
6.1

With nearly a decade of experience, I am well-versed in the exact areas that your project requires. As a Unity Game and Mobile Application Developer, I have mastered both the art and science of producing high-performance applications across diverse platforms specifically Android and iOS. Moreover, my proficiency at optimizing code for mobile contributes to my ability to fix navigation issues and optimize performance for your Illusion Trails app. Additionally, my capabilities extend far beyond basic maintenance tasks. My strong background in scene/world building and environment polish plus experience in improving realism in nature scenes aligns perfectly with your requirements for cleaning up scenes, improving environmental realism, and making small visual improvements where needed. One of my strengths is working with existing codebases, so enhancing the Hiking Simulation App and navigating through potential obstacles will not be an issue. My hourly rate is $50 and nothing would be more rewarding than bringing my expertise to contribute to the success of this app long-term. Time to drive those hikes successfully on iOS!
$500 USD in 7 days
5.2
5.2

As a seasoned game and software developer with over eleven years of experience, I know my way around the Unity Engine like the back of my hand. My career highlights not only showcase my technical proficiency, but also my ability to streamline development processes and analyze requirements, skills that will come in handy in cleaning up and enhancing your hiking simulation app. Moreover, I have successfully developed and published several Unity mobile apps for both Android and iOS platforms that I can show you as proof. One of your project's key requirements is mobile optimization, which correlates perfectly with my deep understanding of Unity's mobile performance constraints. In previous projects, I have consistently optimized game assets and scenes to ensure smooth gameplay on various devices. Moreover, I have ample experience in dealing with existing codebases—an essential skill for maintaining an established Unity project such as yours. Apart from the technical aspects, I genuinely appreciate the concept of your Illusion Trails app. As an outdoor enthusiast myself, a hiking/walking simulation or an exploration-style app is right up my alley. My artistic skills for editing and optimizing game assets will contribute positively towards making natural elements in the app look more realistic. Overall, with the right blend of relevant skills and passion for your project, I believe I can provide long-term value as your reliable Unity developer.
$500 USD in 7 days
5.2
5.2

As a highly-skilled and experienced Unity developer, I believe I'm the perfect fit for your project. With a strong background in mobile app development, particularly in Unity for Android and iOS, I have published multiple mobile apps on both Google Play and the Apple App Store. This has given me in-depth knowledge of the submission process and familiarity with mobile performance constraints, ensuring that your iOS build will be top-notch and optimized. In addition to my technical expertise, I've been noted for my ability to work well with existing codebases. I understand the importance of maintaining an existing Unity project rather than building new ones; this resonates perfectly with your project needs. Let me assure you, I’ll approach this task with meticulousness and dedication to ensure the app not only meets your expectations but also exceeds them. Finally, having worked on projects involving environment polish, walking simulations, exploration-style apps including in natural environments; working on Illusion Trails will offer a welcomed extension to my repertoire. My track record of clean code practices, on-time delivery, and post-support guarantees that our professional relationship will thrive as we turn your project into an ongoing success story. Let’s discuss how we can bring grace and optimization to the trails of Illusion Trails together!
$250 USD in 10 days
5.0
5.0

Hi, Aashiq here from Cape Town, South Africa. This project instantly caught my eye, so I had to reach out. I see you're looking for a reliable Unity developer to enhance your hiking simulation app, Illusion Trails. I understand you want to improve navigation, optimize performance, and prepare the app for iOS submission. I've worked extensively with Unity on mobile apps, focusing on performance optimization and environment polish. I've helped businesses elevate their apps through high-quality maintenance and seamless user experiences. I’m confident I can deliver the results you need and would be happy to share successful project samples. Based on what you mentioned, here is how we would approach the project: - Conduct a thorough code review and identify areas for improvement - Implement navigation fixes and environmental enhancements - Optimize the app for both Android and iOS - Prepare and submit the iOS build to the App Store You can expect clear communication throughout the process, ensuring a user-focused solution optimized for performance. Best Regards, Aashiq
$150 USD in 7 days
4.7
4.7

I can help with fixing navigation issues and improving the overall user experience for your Unity app. My first step will be to conduct a quick code review to identify areas for improvement and provide a summary of my findings. Based in Toronto, I work efficiently and prioritize clear communication, ensuring I'm always available to support your ongoing needs.
$50 USD in 3 days
3.3
3.3

The initial paid tasks align perfectly with my strengths; efficient code review combined with seamless navigation improvements and scene optimization are pivotal for enhancing user experience, improving performance, eliminating bugs, and perfecting environment realism. This goes hand-in-hand with my knowledge of publishing apps across Google Play Store and Apple App store. In addition to my technical proficiency, I'd also like to highlight my excellent communication skills, which have always been well-received by clients. I prioritize understanding the business goals to create solutions that wonderfully match it - something I would love to invest into your Illusion Trails app."
$200 USD in 10 days
3.5
3.5

Hey there! I’m beyond excited to take this on! I recently wrapped up a similar project with good results. Drawing from my experience in Mobile App Development, iPhone, Unity 3D, Game Development, Coding, iOS Development, Android App Development, Visual Design, Unity, I’m ready to dive into your project. Please come over chat and discuss your requirement in a detailed way. Kind regards, Vishal Maharaj
$250 USD in 5 days
3.2
3.2

Hi, I can help maintain and improve your **Illusion Trails** Unity project by refining navigation, polishing environments, optimizing mobile performance, fixing bugs, and preparing the iOS build for App Store submission. I'm comfortable working with existing Unity codebases and delivering clean, well-tested improvements while preserving the current functionality. I'm also happy to complete the two paid test tasks—a code review with recommendations and a small environment enhancement—to demonstrate my workflow and technical approach before moving into the ongoing maintenance role. I can start immediately and provide regular progress updates throughout the project. Best regards, Viktoria
$140 USD in 7 days
2.6
2.6

Hi, I have 7+ years of Unity experience building and maintaining mobile applications for both Android and iOS. I'm comfortable jumping into existing projects, fixing gameplay/navigation issues, optimizing performance, polishing environments, and handling App Store & Google Play releases. I've worked extensively on mobile optimization, scene improvements, and publishing production apps. I'm happy to complete both paid test tasks and provide a clear review with realistic estimates. Looking forward to discussing Illusion Trails and contributing to its long-term success.
$500 USD in 30 days
2.7
2.7

Hello, I can help maintain and enhance your Unity mobile app with a focus on stability, performance, and quality improvements. I have experience working with existing Unity projects, mobile optimization, scene polishing, navigation systems, and iOS/Android builds. I can complete the paid test tasks, provide a clear review, and support long-term improvements with reliable communication and structured updates.
$110 USD in 3 days
2.0
2.0

Getting the Unity code cleaned up before the iOS build is what determines whether things go smoothly or turn into a headache. I can start with a quick audit of the Illusion T project files this week, spot what needs fixing, then move straight into the build from there. Available now and can have a clear plan ready by tomorrow. Bid amount is a starting estimate. The monthly rate comes down to what the codebase actually looks like once I am in it. Want to jump on a quick call?
$150 USD in 14 days
1.4
1.4

Experienced Unity developer with proven success publishing optimized mobile apps on Android and iOS. I will clean up your hiking simulation, fix navigation and environmental issues, and handle iOS submission. Past projects demonstrate reliable solo work and clear communication. Available for 24/7 support. Let's discuss your test tasks.
$30 USD in 7 days
0.8
0.8

Hi, this is Laya Hayat, Im located in Berkeley, US. I can surely assist you in enhancing the Illusion Trails hiking simulation app by fixing navigation issues, cleaning up scenes, optimizing performance, addressing bugs, and preparing the iOS build for submission to the Apple App Store. With over 6 years of hands-on experience in Unity development, I have a strong background in mobile optimization, scene/world building, and app publishing for both Android and iOS platforms. Quick Questions Have you already identified specific navigation issues that need to be addressed in the app? Do you have a preferred timeline for the iOS build submission to the App Store? Would you like the improvements in environmental realism to focus on specific areas within the app? I've previously worked on Unity projects involving environment enhancement, mobile optimization, and app publishing for both platforms. I'll share the most relevant and magical portfolio over a chat. How about a quick virtual coffee and a friendly chat? I can map out your vision and start building something amazing together. Thanks, Laya
$120 USD in 7 days
0.0
0.0

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