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I’ve built an activity-search and price-comparison web app inside Replit, and the core features are live. Now I need an experienced developer to tighten the codebase and package it for the App Store. What I need next • Functionality & performance upgrades – profile the existing code, refactor bottlenecks, add tests, and make the overall experience snappy and reliable. • Activity-booking API integration – wire in live inventory and pricing from leading activity booking APIs (e.g., Viator, GetYourGuide, Klook or your preferred partner). • iOS build & deployment – turn the web app into a native-feeling iOS application. Whether you choose React Native, Capacitor, or another modern approach, the end result should be TestFlight-ready with clear release instructions. • Lightweight backend tweaks – set up any endpoints or caching needed so mobile users get fast responses, even on spotty networks. Deliverables 1. Updated Replit project with commented, optimised code and a concise README. 2. Fully functional activity-booking API module with environment-based configuration. 3. Signed iOS build plus step-by-step deployment guide. 4. Short hand-off session (video or call) so I can maintain and extend the project confidently. You’ll fit well if you have proven travel-API experience, modern JavaScript skills, and a track record of shipping iOS apps. Please share any relevant links or screenshots along with a brief outline of the tech stack you’d recommend for the mobile layer. I’m ready to start as soon as I meet the right person—looking forward to working with you!
Project ID: 40622848
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322 freelancers are bidding on average $231 USD for this job

I understand your project needs for an activity-search and price-comparison web app. I will optimize the codebase, integrate top activity-booking APIs, and develop a seamless iOS application using React Native or Capacitor. With a focus on performance and responsiveness, I will ensure a smooth user experience. Expect optimized code, API integration, a signed iOS build, and a detailed deployment guide. Let's elevate your web app together.
$225 USD in 5 days
8.8
8.8

Hi there, I’ve reviewed your project and understand you need a clean, production-ready codebase for your travel activity-search and price-comparison app, with a focus on iOS deployment via App Store. I’ll help you optimize the existing Replit web app by refactoring the JavaScript/React Native code for performance, scalability, and maintainability. I’ll also integrate reliable API endpoints for real-time data, ensure secure authentication, and implement proper error handling. For the iOS side, I’ll set up a native-like React Native build optimized for iPhone, including App Store compliance (app icons, splash screens, privacy manifest, proper bundle ID), and handle all configuration needed for submission—no extra hassle on your end. I’ll make sure the app runs smoothly across devices and adheres to Apple’s guidelines. Your current stack (JavaScript, React Native, PHP backend) is well-suited for this, and I’ll preserve your core logic while upgrading structure and architecture. Best Regards, Khorshed Alam, RS Software
$115 USD in 6 days
9.5
9.5

Interesting project, I will profile your Replit codebase, refactor the bottlenecks, then wire in Viator and GetYourGuide APIs for live inventory and pricing. From there I will wrap the app using Capacitor so it feels native on iOS and is TestFlight ready. On a similar travel comparison build, adding response caching for spotty networks cut load times by over half. Questions: 1) Which activity APIs do you already have keys for? 2) Is the current stack plain JS or a framework like React? Share your Replit link and I will review the codebase tonight. Ready to start whenever you are. Kamran
$90 USD in 5 days
8.7
8.7

Hello, I HAVE EXPERIENCE BUILDING TRAVEL PLATFORMS, BOOKING SYSTEMS, API INTEGRATIONS, REACT/CAPACITOR APPLICATIONS, AND IOS APP DEPLOYMENTS, AND I CAN SHOW YOU SIMILAR PROJECTS. I have carefully reviewed your requirements and can optimize your existing Replit codebase by profiling performance, refactoring critical components, adding automated tests, integrating activity booking APIs such as Viator, GetYourGuide, or Klook, implementing backend caching for faster responses, and packaging the application into a native-feeling iOS app using the most suitable technology stack. I will deliver a TestFlight-ready build, complete documentation, and a smooth deployment process. I have 10+ years of experience in JavaScript, React, Node.js, REST APIs, Capacitor, React Native, iOS deployment, and scalable web application development. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL WORK WITH AGILE METHODOLOGY AND WILL ASSIST YOU FROM ZERO TO PUBLISHING ON STORES. I am available on desk as per your convenient time zone and will work on your project until you are satisfied with my work. I eagerly await your positive response. Thanks, Christina
$140 USD in 7 days
8.4
8.4

Hi, I reviewed your travel activity-search and price-comparison web app in Replit, and you need it tightened for snappy performance plus a TestFlight-ready iOS release. I’ll profile and refactor the current PHP and JavaScript codebase, add focused tests, and build a clean React Native iOS layer that integrates the activity-booking API with environment-based configuration, caching, and fast responses on spotty networks. I’ll keep everything well-structured with commented, optimized code, a concise README, and reliable iPhone build/deployment steps with clear hand-off so you can maintain it confidently. Let’s discuss here now.
$150 USD in 7 days
8.5
8.5

Hi, I have extensive experience with React, React Native, Node.js, travel APIs, and App Store deployments. I can optimize your existing Replit codebase, integrate activity booking APIs like Viator or GetYourGuide, implement the required backend enhancements, and deliver a TestFlight-ready iOS app with complete documentation and handover. Best, Utam
$140 USD in 7 days
8.3
8.3

Hi there, Your travel app already has the hard part done , now it needs the quiet work that makes users trust it: faster responses, cleaner integrations, and a smooth App Store path. I’ve built and refined web apps with PHP/JavaScript, API integrations, caching, and deployment workflows, and I can help tighten your Replit codebase, connect a reliable activity-booking API, and shape the mobile layer into a TestFlight-ready iOS build. I’ll focus on profiling bottlenecks, adding practical tests, and keeping the backend lightweight so the app stays responsive on weaker connections. 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. If you already have a preferred API partner, I can adapt to it; otherwise I can recommend the cleanest integration path for live inventory and pricing. Could you also share whether you want the mobile build to stay closest to the current web UI or feel more native with platform-specific navigation? What auth, caching, or deployment pieces are already in place? Would you prefer the iOS layer to prioritize a native feel, or should it stay closely aligned with the current web experience? Looking forward to your reply so we can finalize the exact plan. Thanks, Asad
$75 USD in 3 days
8.2
8.2

--- Activity Search & Booking App – iOS Development --- I can help optimize your existing Replit application, integrate activity booking APIs, and prepare it for iOS deployment. Here's my approach: → Review and refactor the existing codebase, improve performance, and add tests. → Integrate Viator, GetYourGuide, Klook, or a suitable activity API with secure environment-based configuration. → Convert the existing web app into an iOS-ready application using React Native, Capacitor, or the most suitable approach. → Add required backend endpoints/caching and provide the signed build, README, and deployment guidance. Flow Code Audit → Optimization → API Integration → iOS Build → TestFlight → Handover Question Do you already have API access for Viator, GetYourGuide, or another provider, or should we handle the API selection and setup? Let's connect... Thanks
$280 USD in 16 days
8.3
8.3

Hey, I’ve carefully reviewed your project, and I understand you need an experienced developer to optimize your existing Replit application, integrate activity booking APIs, and transform it into a reliable iOS app ready for release. I can help refine the current system while keeping the product scalable and easy to maintain. I will improve code performance, refactor key areas, add testing, integrate live activity inventory APIs, optimize backend responses with proper caching, and prepare a TestFlight-ready iOS build with clear deployment documentation. My focus is on delivering a smooth mobile experience and a solid foundation for future growth. I have hands-on experience with similar web-to-mobile and API-driven applications and would be happy to share relevant examples during our discussion. One quick question: Which activity providers have you already secured access to, or should I help evaluate the best API option for your platform? Portfolio: https://www.freelancer.com/u/Hammadhassan21 Best Regards, Hammad Hassan
$200 USD in 6 days
7.9
7.9

Hello, Your project is a great fit for my experience with JavaScript applications, API integrations, and mobile app deployment. I can optimize your existing Replit travel application, integrate a reliable activity-booking API, and package it into a polished iOS app that's ready for TestFlight and App Store submission. Deliverables Optimized and well-documented Replit project Integrated activity-booking API module TestFlight-ready iOS application Deployment guide README documentation Knowledge-transfer session after delivery Post-launch support for minor issues Throughout the project, I'll keep you updated with regular progress reports and ensure the code remains clean, scalable, and easy to maintain. I'd be happy to review your current Replit application before we begin and recommend the best mobile architecture based on your existing codebase. I look forward to working with you. Thank you. Best regards RAHEEL
$90 USD in 7 days
8.1
8.1

Hi, Your project sounds exciting, and I'd be happy to help transform your existing Replit travel application into a polished, production-ready web and iOS solution. After reviewing your requirements, my approach would be: Analyze and optimize the existing codebase to improve performance, reliability, and maintainability. Refactor key components, eliminate bottlenecks, and add testing where appropriate. Integrate a suitable activity-booking API such as Viator, GetYourGuide, Klook, or another provider based on your business requirements and API availability. Add lightweight backend improvements, including caching and optimized endpoints, to provide fast responses for mobile users. Convert the web application into an iOS app using a modern framework such as Capacitor or React Native, depending on your current architecture and long-term goals. Prepare a TestFlight-ready build and provide clear deployment instructions for App Store submission. I focus on writing maintainable, scalable code and keeping clients informed throughout the development process. I look forward to helping you deliver a fast, reliable travel application for both web and iOS. Thank you for your consideration. Best regards ADEEL
$90 USD in 7 days
8.0
8.0

Hi, Your app is already built, so the priority is optimizing the code, integrating a live activity booking API, and delivering a TestFlight-ready iOS app. I recommend **React Native** for the mobile layer since it offers native performance, long-term maintainability, and works well with an existing JavaScript codebase. I can integrate **Viator or GetYourGuide APIs**, optimize performance, add the required backend caching, and provide a clean handover with deployment documentation. I have 10+ years of experience building and optimizing web and mobile applications, and I'm ready to start immediately. Thank you. Regards, Sai
$210 USD in 7 days
7.8
7.8

⭐⭐⭐⭐⭐ Enhance Your Activity-Search App for iOS Deployment ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project needs and see you're looking for an experienced developer to improve your web app. You don't need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects focused on app development and optimization. I will profile your existing code, refactor any bottlenecks, and integrate the necessary APIs to ensure a smooth user experience. ➡️ Why Me? I can easily enhance your activity-search app as I have 5 years of experience in web and mobile app development, focusing on API integration, performance optimization, and iOS deployment. My expertise includes JavaScript, React Native, and backend setup, ensuring a robust solution for your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you! ➡️ Skills & Experience: ✅ JavaScript ✅ React Native ✅ API Integration ✅ Performance Optimization ✅ Code Refactoring ✅ iOS App Deployment ✅ Backend Development ✅ Testing & Debugging ✅ Caching Techniques ✅ User Experience Design ✅ Documentation Writing ✅ Version Control (Git) Waiting for your response! Best Regards, Zohaib
$150 USD in 2 days
7.9
7.9

Hello, We understand you need an experienced team to optimize your existing Replit-based travel activity platform, integrate live booking APIs, and transform it into a reliable iOS application. Doomshell Software Pvt Ltd can help you with: • Code review, performance optimization, refactoring, and improving application stability. • Integration with travel activity APIs like Viator, GetYourGuide, Klook, or suitable alternatives for live inventory and pricing. • Building a mobile application experience using React Native/Capacitor with App Store-ready deployment. • Backend improvements including API development, caching, and performance enhancements for faster mobile responses. • Testing, documentation, deployment support, and a complete handover process. Our approach will start with analyzing the existing Replit codebase, identifying bottlenecks, and creating a scalable architecture for future growth. We have experience developing web platforms, mobile applications, REST API integrations, and backend systems. We would be happy to review your current setup and suggest the best technical approach for converting your platform into a high-performing web and iOS solution. Looking forward to discussing your project.
$240 USD in 7 days
7.5
7.5

Your project to enhance the travel web and iOS app sounds exciting, especially the need for robust activity-booking API integration. I have extensive experience working with APIs like Viator and GetYourGuide, which will allow me to efficiently wire in live inventory and pricing to ensure a seamless user experience. For the functionality and performance upgrades, I will profile the existing codebase to identify bottlenecks and refactor them while adding comprehensive tests to enhance reliability. I can also implement lightweight backend tweaks to ensure mobile users receive fast responses, even in challenging network conditions. I propose using React Native for the iOS build, as it provides a native-feeling experience while allowing for efficient code sharing between web and mobile. The deliverables will include an updated Replit project with optimized code and a concise README, a fully functional activity-booking API module, a signed iOS build with deployment instructions, and a short hand-off session to empower you to maintain the project. One question I have is whether you have a preferred activity-booking API to start with, or should I evaluate multiple options for the best fit? Looking forward to collaborating on this project! Rajavel JavaScript Developer | React Native | API Integration
$49 USD in 10 days
7.6
7.6

Hello, My recent work includes JavaScript performance tuning, API integration, and iOS Development for web products moving toward TestFlight. Your Replit travel app needs careful refactoring, tests, and a clean booking API module for live inventory and pricing. I can profile the current code, remove bottlenecks, add environment-based configuration, and set up lightweight backend caching for faster mobile responses. For Mobile App Development, I would likely use Capacitor or React Native after reviewing the code, then prepare a signed iOS build, README, release guide, and hand-off session. Best regards, Teo
$200 USD in 2 days
6.8
6.8

I can help enhance your travel web and iOS app by optimizing the codebase, integrating APIs, and ensuring a seamless user experience. My approach will focus on functionality, performance upgrades, and delivering a polished product ready for the App Store. Your emphasis on functionality and performance upgrades, as well as the integration of activity-booking APIs, aligns perfectly with my expertise. I understand the importance of creating a snappy, reliable app that meets user expectations. With proven travel-API experience and strong JavaScript skills, I have successfully shipped multiple iOS apps using modern frameworks. I recommend utilizing React Native for its efficiency and capability to provide a native feel. I have a portfolio showcasing similar projects. Regards, InterconnectBPO
$150 USD in 7 days
6.8
6.8

Hi, It will be an honor for me to work with you. I have got 12 years of mobile application development experience (iOS, android, flutter). Lets discuss this in detail and get this started. Looking forward to hear from you.
$250 USD in 7 days
6.9
6.9

Respectfully, Your app already has the core functionality in place so the priority now is improving performance and preparing it for a smooth App Store release. The API integration and mobile packaging should be done in a way that keeps the existing Replit project easy to maintain while delivering fast responses for users. I have worked on JavaScript based web applications API integrations and mobile deployments where stability and long term maintenance were just as important as new features. I would review the current codebase remove performance bottlenecks add proper testing and use Capacitor for the iOS layer so the web application can be packaged with a native experience while keeping a single codebase. One question. Which framework is your current Replit application built with? Portfolio freelancer.pk/u/zainalitariq245 Looking forward to collaborating with you. I'm available to discuss the project whenever it's convenient for you. Thanks.
$200 USD in 7 days
6.8
6.8

Hi, It looks like the main challenge here is wrapping a web app into a reliable iOS experience while wiring in live travel inventory without slowing things down. I’ve done similar platform work before, where the tricky part was keeping API calls responsive under spotty networks and ensuring the booking flow stays consistent across devices. On the API side I’ve connected to multiple travel providers before—mostly for a booking-heavy project that needed real-time pricing and inventory sync to stay accurate. The mobile layer will depend on how much native feel you want; a React Native or Capacitor approach usually gives the quickest path to TestFlight while letting you reuse most of the existing logic. The part that needs the most care is the caching layer—offline-capable responses and quick retries when the network stalls. Without that, even a clean build will frustrate users in airports or on ferries. There’s also the small risk of API rate limits biting when usage scales, so I’d start with a simple fallback queue and monitor costs early. Thanks, Denis.
$30 USD in 3 days
6.4
6.4

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