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Looking for someone who can help me with the Base 44 app I already have built. Integrate it with Hello sign, Trello and field routes. and then move it to the app store. down the road move the app off base44.
Project ID: 40538125
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Active 2 days ago
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68 freelancers are bidding on average $443 USD for this job

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on Mobile App Development, iPhone, Android, iPad, App Store Optimization, App Development, API Integration, Base44 Please come over chat and discuss your requirement in a detailed way. Thank You
$250 USD in 3 days
6.3
6.3

Hello, I’ve gone through your project details and this is something I can definitely help you with. I have 10+ years of experience in mobile and web app development, working with Flutter, Android, iOS, React, Node.js, and APIs. I focus on clean architecture, scalable code, and clear communication to ensure the project runs smoothly from start to finish. I will first review your requirements, suggest the best technical approach, and then proceed with development while keeping you updated at every stage. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to understand more details to ensure the best approach. Could you clarify: What specific functionalities do you want to integrate with HelloSign and Trello? 1. Do you need this for mobile, web, or both? 2. Do you already have UI/UX designs or should we create them? 3. Will there be any third-party API or payment gateway integration? 4. What is your expected timeline for completion? 5. Are there any reference apps or websites you like? Let’s discuss over chat! Regards, Arpit Jaiswal
$250 USD in 22 days
7.5
7.5

Hi! I read "Base 44 integration and implementation" carefully and I'm confident we can deliver. We bring extensive hands-on experience delivering enterprise-grade solutions across many industries—ERP, CRM, HRMS, LMS, web and mobile apps, e-commerce, healthcare, travel, real estate and logistics—with strong skills in Mobile App Development, Android. Whatever your domain, we build secure, reliable software that's on time and within budget. Let's connect to discuss your goals, timeline and budget. Thanks!
$600 USD in 14 days
5.2
5.2

I'm Vimal Kumar, a Full Stack Developer & Digital Solutions Expert with an extensive 10+ years of experience that includes every aspect of your project. As a seasoned mobile app developer, I'm well-versed with both Android and iOS development, making me equipped to not only integrate your existing Base 44 app with Hello sign, Trello and field routes but also take it beyond Base44, catering to your long-term aspirations. In my career span, I've successfully delivered over a hundred projects; my coding efficiency ensures prompt completion without compromising on quality. Migrating your app from one platform to another can be tricky, but my strong skills in App Store Optimization reassures you of a seamless transfer while maximizing the app's visibility. Additionally, apart from development, I've deep expertise in UI/UX which can further enhance the user experience of your app. I also hold proficiency in SEO & Digital marketing which can give the necessary boost for visibility. Your project necessitates someone who understands the changing dynamic of technology and offers prompt support - this is where my decade-long expertise stands out. Let's work together and transform your vision into a successful reality!
$450 USD in 7 days
5.0
5.0

Hi, I can take over your existing Base44 app, wire up the integrations you need - HelloSign (e-signature), Trello and FieldRoutes - and get it cleanly published to the App Store, then help you migrate off Base44 onto a maintainable native/cross-platform stack down the road. I will handle the API auth, data mapping and the full store submission (provisioning, assets, review). You get the integrations live now and a clear path off the no-code platform later. We build and ship mobile apps for our own products. Happy to discuss the migration plan. - Muhammad Idrees, Global IT Vision Pvt. Ltd
$600 USD in 12 days
5.8
5.8

Hello, I have experience working with Base44 projects and can help integrate your app with Dropbox Sign (HelloSign), Trello, and FieldRoutes, then prepare and publish it on the App Store. I can also help migrate the app away from Base44 in the future, ensuring a smooth transition while keeping your existing functionality intact. You can also check my reviews for previous Base44-related work. Looking forward to discussing your project.
$250 USD in 7 days
5.0
5.0

Hello, I can take over your existing Base44 app, complete the integrations with HelloSign, Trello, and Field Routes, and prepare it for a smooth App Store submission. I have experience building and connecting workflow apps via APIs, webhooks, and automation layers, ensuring reliable data sync across external services. My approach will focus on stabilizing your current build first, implementing clean integration architecture, and then handling all app store compliance, packaging, and release requirements. Once live, I can also help you strategically migrate the app off Base44 into a more scalable standalone architecture without disrupting users or data flow. You’ll get a production-ready, fully integrated, and future-proof solution. Best regards
$500 USD in 4 days
4.3
4.3

I understand you need assistance integrating your existing Base44 app with HelloSign, Trello, and Field Routes, followed by an App Store submission. I successfully implemented a similar workflow for a client, connecting their internal app to DocuSign, Asana, and a custom field service platform, resulting in a 20% reduction in manual data entry. My approach will involve building API connectors for each service using Node.js and Express. For HelloSign, I'll implement webhooks for signature status updates. Trello integration will use its REST API to manage task creation and updates. Field Routes will be connected via their provided API for appointment syncing. The final app will be packaged for iOS and Android distribution using React Native. What is the current status of your Base44 app's build process and testing infrastructure? Ready to start as soon as you confirm scope.
$578 USD in 21 days
3.7
3.7

Hi, there. Hope you are doing well. I reviewed your project and understand that you already have a Base44 application in place and need assistance completing the next stage, including integrations with HelloSign, Trello, and Field Routes, followed by App Store deployment. I have experience working with API integrations, mobile applications, workflow automation, and third-party business platforms, ensuring data flows reliably between systems while maintaining a smooth user experience. My approach would be to first review the existing Base44 implementation, assess the current architecture, and then integrate each service in a structured way so document signing, task management, and field operations work seamlessly within the app. Once the integrations are stable, I will focus on testing, optimization, store compliance, and submission to the App Store and Google Play. I can also help plan the future migration away from Base44 by documenting the existing functionality and designing a scalable transition strategy that minimizes disruption while preserving core business processes. I am confident in delivering a reliable integration and deployment solution with clean documentation and a smooth handover. Thanks.
$250 USD in 4 days
3.9
3.9

You need help integrating your existing Base44 application with third-party services (HelloSign, Trello, FieldRoutes) and preparing it for App Store deployment, with a future plan to migrate away from Base44. I’ve built similar integration-heavy mobile systems at Poundit, where I connected external APIs (CRM, payment, workflow tools) into mobile-first platforms using secure REST/webhook architectures and handled App Store deployments for production apps. I’ll start by mapping your current Base44 architecture, then build clean API integration layers for HelloSign, Trello, and FieldRoutes using secure token handling and event-based syncing. After that, I’ll guide the App Store submission process (iOS/Android depending on your stack) and ensure your app is production-ready with proper signing, build configuration, and review compliance. For the future migration off Base44, I’ll structure integrations in a decoupled way so you can later move to a custom backend without breaking workflows. Delivery in 1 week depending on API access and current Base44 export capabilities.
$350 USD in 5 days
3.5
3.5

Hey there, I have reviewed your Base44 project and I can help you with this. I have experience with Base44 apps and know how to get them connected to external services and published properly. Base44 apps are web-based by default, so they do not generate native Android or iOS files that can go straight to the app stores . I can handle the integration with HelloSign, Trello, and field routes first. Then I can wrap your Base44 app in a native build for both Android and iOS so it can be submitted to Google Play and the App Store . I can also help you with the future migration off Base44 when you are ready. Do you already have your developer accounts for Google Play and the App Store set up? Also do you have the API credentials ready for HelloSign and Trello? I can start right away. BEST REGARDS, RICARDO
$350 USD in 2 days
2.9
2.9

With my extensive expertise and successful track record in mobile app development and integrating a variety of API's, I am confident that I can seamlessly integrate your Base 44 app with Hello sign, Trello, and field routes. Having worked with numerous APIs over the years, I understand the complexity and potential roadblocks such implementations can have - but rest assured, I always find solutions to keep the project on track. Moreover, as you plan to eventually move the app off Base 44, my full-stack capabilities come into play. With proficiency in Figma, React, Node.js, Flutter, and more - I can rescue your project from any dependencies it may have on Base 44 and smoothly transition it to the App Store or any other platform you desire. Let's discuss your project further so I can give you a more tailored approach for its implementation. With my solid grasp on both iOS and Android development alongside backend services and database optimization, I guarantee not just efficient integration but also a future-proof solution for your app. Let's bring your vision to life!
$250 USD in 7 days
3.2
3.2

When it comes to integrating and implementing Base 44 with platforms like HelloSign, Trello, and Field Routes, and ultimately transitioning your app off Base44, I'm your go-to guy. Armed with a robust skillset in PHP, Node.js, Vue.js, and C#, I've spent countless hours developing seamless app integrations and migrations. My prior experience with similar projects have equipped me with a deep understanding of the process, enabling me to swiftly harmonize platforms while keeping user experience intact. As an Android aficionado, mobile app migration is well within my wheelhouse. Not only will I ensure your app functions seamlessly after its transition-off Base 44, but I'll also facilitate a smooth move to the app store. With a quality-focused mindset that runs parallel to your vision, I'll craft clean code that enhances your user experience and adheres to industry best practices. Client satisfaction ranks highest on my priority list. When you hire me for this project, you can expect timely deliverables without any compromise on quality or functionality. So let's get started on transforming and optimizing your app! Choose me as your dedicated freelancer and elevate your project to new heights."
$350 USD in 5 days
2.4
2.4

Hi, I can help integrate and implement your existing Base44 app with HelloSign/Dropbox Sign, Trello, and FieldRoutes, then prepare it for App Store/Play Store submission. The best solution is to first review your current Base44 app structure, available API access, user workflows, and what data needs to move between each platform. Then I’ll connect document signing through HelloSign, task/job workflow updates through Trello, and customer/service data through FieldRoutes, with proper authentication, error handling, and testing. I’m comfortable with mobile app development, API integration, Base44 workflows, iOS/Android app preparation, App Store submission, third-party API setup, automation logic, and clean handover documentation. Deliverables can include: * Base44 app review * HelloSign integration * Trello integration * FieldRoutes integration * API testing and troubleshooting * App Store/Play Store readiness support * Submission guidance * Setup and handover notes I can also plan the later migration path away from Base44 by documenting current app logic, data structure, integrations, and a recommended rebuild stack. Best regards Ankit
$250 USD in 4 days
2.3
2.3

Hello, Our team has experience with integrating applications such as Trello and HelloSign, having successfully developed collaboration platforms that streamline project management and documentation. For your Base 44 app, we can implement a seamless integration with HelloSign for digital signatures, enhance task management with Trello, and optimize field routes for better user experience. Our approach will involve an initial assessment of the existing app architecture, followed by configuration and API integrations, testing, and deployment to the app store. We understand your need to eventually move the app off Base 44, and we can prepare a detailed migration plan tailored to your future goals. This project aligns with our expertise in creating user-friendly interfaces and robust backend solutions, ensuring a smooth transition and integration. Thanks, PureCode Company
$300 USD in 5 days
2.0
2.0

Hi, I've reviewed your requirements and can help integrate your existing Base44 application with HelloSign, Trello, and FieldRoutes, followed by preparing it for App Store submission. I have experience working with third-party API integrations, workflow automation, mobile app deployment, and backend connections. I can connect the required services, ensure data flows correctly between platforms, test the complete workflow, and handle the app publishing process. For the future migration away from Base44, I can also help plan a scalable approach to move the application to a more flexible architecture while preserving existing functionality and data. My focus will be on delivering a stable integration, clean implementation, and a smooth transition for future development. Best regards, Vandini
$400 USD in 10 days
1.8
1.8

✅ 1. Is the current Base44 app using Base44 Auth/database, and where should Dropbox Sign, Trello, and FieldRoutes records be stored? ✅ 2. Do you need one-way pushes, two-way sync, or webhook-based status updates from all three services? ✅ 3. Is the App Store release meant to be a wrapped Base44 web app now, with native rebuild planned later? I’d wire the integrations around clean API calls, webhook logging, retry handling, and visible sync status. The tight spots are OAuth scopes, FieldRoutes API limits, signed-document status, Trello card duplication, and Apple review. I’d start by mapping each workflow before touching the App Store package.
$500 USD in 7 days
1.4
1.4

Bid amount and delivery time above are rough placeholders , we'll sharpen both once we know exactly what's involved. From what you've described, you've got a Base44 app that's already working and you need three integrations wired in (HelloSign for document signing, Trello for task/project tracking, and Field Routes for field service management), then the app packaged and submitted to the App Store. And longer term, you want to eventually move the whole thing off Base44 onto a more portable stack. That's a clean roadmap. Here's how we'd approach it: - HelloSign: Connect the signing flow via HelloSign's API so documents can be sent, signed, and tracked directly inside your app without jumping to a browser. - Trello: Use Trello's REST API to push or sync tasks, cards, or job statuses depending on how your workflow is structured , we'd want to understand your Board setup first. - Field Routes: Wire in the Field Routes API for scheduling and customer/job data, keeping things in sync between your app and the field ops side. - App Store submission: Handle the iOS build, Apple Developer account setup if needed, App Store Connect listing, screenshots, and the review submission itself. - Migration planning: Once the above is stable, we can map out what a Base44-free rebuild looks like , React Native or Flutter on a proper backend , so you're not locked in forever. After a quick call to walk through your current app and what each integration needs to do, we'll put together a proper proposal with milestones and firm pricing. Want to jump on a short call this week to go through it? Best, 96 Studio
$525 USD in 14 days
0.9
0.9

Hello, Integrating third-party APIs like HelloSign, Trello, and FieldRoutes into an existing app — then packaging and submitting it to the App Store — is a combination I've handled before. With your Base44 app already built, this is purely integration and deployment work, no rebuilding needed. I'll wire up all three integrations cleanly, test each flow end-to-end, then handle the App Store submission process including build configuration, metadata, and compliance requirements. Share your current app and API access details and I can give you a precise timeline right away. Best, Francisco
$250 USD in 2 days
0.0
0.0

Hi there, You need assistance with integrating your existing Base 44 app with HelloSign, Trello, and Field Routes, as well as preparing it for the app store. I specialize in app integrations and can streamline this process effectively. I've successfully integrated multiple applications in previous projects, ensuring seamless functionality and user experience. For instance, I recently integrated a project management tool with a document signing service, which significantly improved workflow efficiency. Here's how I will execute your project: - Assess the current app structure and integration requirements. - Implement integrations with HelloSign, Trello, and Field Routes. - Conduct thorough testing to ensure all functionalities work smoothly. - Prepare the app for submission to the app store. I can complete this project within 2-3 weeks, depending on the complexity of the integrations. You can view my relevant work at freelancer.com/u/artemb35. What specific features do you need from the integrations with HelloSign and Trello? Let's discuss how we can move forward!
$500 USD in 7 days
0.0
0.0

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