Experience level filter
Job type filter
Client history filter
Project length filter
Hours per week filter
  • Fixed price
  • Expert
  • Est. budget: $50.00

I have a React Native app ready. I need help uploading it to Apple App Store and Google Play Store. I already have: - Apple Developer account - Google Play Console account - App files: .ipa and .aab ready You need to: 1. Upload build to Apple TestFlight 2. Upload build to Google Play Console 3. Fill store listing with text + screenshots I provide 4. Submit for review Budget: $50 fixed. Should take 1-2 hours. Must have 5-star reviews and done this before. Send me message "I can do TrueTurn" to apply.

  • Hourly: $30.00 - $90.00
  • Expert
  • Est. time: 1 to 3 months, Less than 30 hrs/week

I need an experienced developer to migrate an existing Base44 (React + Vite) prototype to production-grade native mobile apps for both iOS (App Store) and Android (Google Play), with architecture built to scale. Scope of work: Export and thoroughly audit the Base44 codebase. Migrate frontend to production React Native (Expo strongly preferred) for iOS and Android. Migrate backend logic to a scalable solution (e.g. Supabase or equivalent). Implement and rigorously test permissions, privacy requirements, and store compliance for both platforms. Verify, harden, and optimize all API integrations. Battle-test features, edge cases, and performance across iOS and Android devices. Prepare full submission readiness for Apple App Store and Google Play. Provide architecture guidance for scaling to high user volumes. Must-haves: Multiple live React Native apps successfully published to both the Apple App Store and Google Play (provide links). Experience migrating from no-code/AI-generated or web codebases to cross-platform native. Strong backend experience with scalable solutions (Supabase, Firebase, Postgres, etc.). Deep expertise in mobile permissions, privacy compliance, and the full submission/review processes for both iOS and Android. Excellent code quality with TypeScript, modern React Native patterns, state management, and navigation. Portfolio + GitHub examples required. References from previous production mobile projects a big plus. Strong communication for phased collaboration with clear milestones. Engagement: Phased project (Audit & Plan → Migration → Polish & Testing → Launch Prep). Available ASAP. Remote OK with preference for EST/overlapping hours. Florida-based a plus but not required. To apply: Email/DM [your email] with: App Store and Google Play links + relevant GitHub/portfolio Brief summary of relevant migration or scaling experience High-level proposed approach Availability ASAP

  • Hourly
  • Intermediate
  • Est. time: Less than 1 month, Less than 30 hrs/week

Firstly, I want to state that I am not a coder. At all. The code I'd like you to review was entirely "vibe coded" using Antigravity and Claude. I don't intend to create a complete product using this method, in fact, I'd like to use real people as much as possible for my business. I used AI during this phase simply to see my ideas made material. I understand that this means the code itself is likely compromised in all sorts of ways, but I'm hoping that you can help me with that. Please speak with me as you would a fifth grader about the technical aspects of the code, assuming you'd like to work together from this point forward. My app is a free-to-user dating and date planning app that connects people through locally owned businesses. It serves two audiences: - **Singles** looking to meet and go on dates with other singles in their area - **Couples** looking for date night inspiration through a linked accounts mode

  • Hourly
  • Expert
  • Est. time: 1 to 3 months, Less than 30 hrs/week

In need of an App Developer for an entertainment-based voting app for Film and TV titles. This App will not be able to be used by the general public - it will be a Members-Only App. It can be available in the Google and Apple store, but we will require a unique login token for each Member. Wecwill need admin tools to load new moves and TV shows as they are being screened/released. Only TV members will be able to vote on TV titles, and only Film members will be able to vote on film titles, so the admin tools will need a designation for the type of membership - I have a master-list of around 600 Members and their voting specifications. We need to track and calculate all voting. Each title will have a scale of 1-10. In the admin I will need to be able to see the average score and the number of votes. Only titles that have received over 25 votes with a score of 85 and above receive a "seal."

  • Hourly: $15.00 - $30.00
  • Intermediate
  • Est. time: 1 to 3 months, Less than 30 hrs/week

We are building the customer-facing layer of a specialized B2B platform for on-demand additive manufacturing. Engineers will use this storefront to upload CAD designs, receive AI-powered Design for Additive Manufacturing (DfAM) analysis and instant quotes, compare options, place orders with approval workflows, and track production with full traceability. This is not a standard Shopify theme customization or generic DTC store build. It requires deep integration between Shopify and a custom backend platform, custom app development, B2B features, and handling of complex quoting/ordering flows. The engagement covers the MVP of the Shopify layer. Strong results can lead to ongoing work on future phases. MVP Scope (Shopify Layer) - Modern buyer storefront (Shopify theme or headless Hydrogen/Remix recommended) - Custom Shopify App that handles: - CAD file upload and secure handoff to backend - Display of AI-generated DfAM analysis and multiple supplier quotes - Quote comparison, selection, and order creation - Company/account management and multi-user approval workflows - B2B-focused features: company accounts, custom price lists/quoting, draft orders, net payment terms, and role-based visibility - Checkout customization or extensibility (Shopify Functions / Checkout Extensibility) to support complex order data and approvals - Webhooks and robust two-way sync between Shopify and the custom backend (orders, status updates, digital thread events) - Clean, well-documented code with proper error handling, logging, and security practices Later phases may include deeper personalization, advanced configurators, post-processing add-ons in checkout, and enhanced analytics. Key Technical Challenges - Building a reliable custom Shopify App with secure file handling and backend API integration - Displaying dynamic, AI-generated quotes and analysis inside the Shopify experience - Implementing B2B workflows (approvals, company accounts, draft orders) that sync cleanly with external systems - Maintaining performance and data consistency across Shopify and the custom platform - Production-grade practices: idempotency on syncs, proper error recovery, audit-friendly logging, and security for proprietary design files Tech Preferences Strong experience with Shopify Plus features, Custom App development (including billing API, webhooks, and Admin/Checkout extensions), and either traditional Liquid themes or headless (Hydrogen + Oxygen / Remix + Storefront API) is highly valued. Experience integrating Shopify with external APIs or complex backend systems is essential. We are open to your architecture recommendations with clear reasoning. Must-Have Experience - 4+ years professional Shopify development with production projects - Demonstrable experience building Custom Shopify Apps and/or headless Shopify storefronts - Strong integration skills (REST/GraphQL APIs, webhooks, reliable data synchronization) - Experience with B2B Shopify features (company accounts, custom pricing, draft orders, approval workflows) - Excellent communication, proactive updates, and ability to work with a separate backend team - Clean code practices, testing where critical, and proper documentation Nice-to-Have - Prior work on manufacturing, industrial, or quoting/configurator-type Shopify projects - Experience with Shopify Functions, Checkout Extensibility, or complex checkout customizations - Familiarity with file upload/processing flows or 3D/CAD-related interfaces - Experience working alongside custom backend teams (not just standalone Shopify stores) Engagement & Timeline MVP delivery targeted in 6–10 weeks with clear milestones and regular demos. Open to hourly or milestone-based pricing. There is strong potential for continued work on future phases for the right partner. How to Apply To help us move quickly with serious candidates, please include in your proposal: 1. A brief summary of why this project interests you and one relevant past project (with link or specific details) involving Custom Shopify App development, headless storefronts, or complex B2B integrations. 2. High-level thoughts on how you would structure the Shopify App + storefront integration with an external backend (key components, data flow for quotes/orders, error handling, and security for design files). 3. Your availability over the next 3 months and preferred pricing model (hourly rate or estimated range for the MVP scope). 4. Confirmation that you are comfortable with detailed code reviews, GitHub collaboration, and proactive communication. We value specific, real-world examples and clear technical thinking over generic proposals. Thoughtful applications will receive priority. Looking forward to reviewing strong submissions.

Posted 2 weeks ago
  • Hourly
  • Expert
  • Est. time: Less than 1 month, Less than 30 hrs/week

We already have a project made on lovable we need to be able to connect it to the App Store. we need this done in around 5 days.

  • Hourly: $45.00 - $60.00
  • Intermediate
  • Est. time: 1 to 3 months, Less than 30 hrs/week

I am seeking a knowledgeable Project Manager for Website Development, to guide me in launching an interactive female friendship website application.  This website will connect women for travel, networking & widening one's friendship circle.  The website developer I am going to hire is likely going to use Claud AI. I would like to have developed both a Website Application and Mobile Application with a mapping system. Your expertise will be invaluable for both the Front End and Back End development processes. The ideal candidate should have experience in web application architecture, UI/UX design, and backend server management. Your insights will help shape the user experience and ensure the application is robust and scalable. If interested, I would love to meet with you over video to discuss further.

Posted 4 weeks ago
  • Fixed price
  • Intermediate
  • Est. budget: $2,000.00

Assist in porting an offshore fishing app from iOS to Android. The project welcomes the use of AI and emphasizes strict modern usage and technology. The ideal candidate will ensure the app is updated with the latest standards and is open to innovative solutions to enhance functionality. Full parity, same experience while respecting Android patterns. I started this project. Made good progress and looking for help. Specifically, a focus on latest practices, performance and organization so app can scale. App will load zarr data and rendered on mapbox using custom layers, so memory and smooth scrubbing to adjust time is important. You can see Salty Offshore in App Store to get a better idea. Can discuss scope of work, based on availability and complexity. Thank you!

  • Hourly
  • Expert
  • Est. time: 1 to 3 months, Less than 30 hrs/week

we are a consumer health app that reads your Apple Watch data every morning — HRV, sleep quality, steps, active energy — and delivers a spoken, AI-generated daily plan. Built on React Native, Supabase, and Anthropic's Claude AI. We are looking for a contract React Native developer to build V1 from specification to TestFlight. The product is fully designed, the tech stack is chosen, the legal entities are formed, and seed funding is in place. This is a build-it role, not a discovery role. What you're walking into: A founder with a complete product specification, a defined tech stack, milestone-based payment, a signed contractor agreement (NDA + IP assignment), and a clear 90- day path to TestFlight beta with real users. You will need At least one live app in the App Store built with React Native — link required in application ✦ Demonstrable experience with Apple HealthKit — must have integrated at least one HealthKit data type in a shipped app ✦ Backend integration experience — Supabase, Firebase, or comparable cloud backend with auth and real-time data ✦ Third-party API integration — REST APIs with OAuth or API key authentication ✦ Willingness to sign a standard contractor NDA and IP assignment agreement before engagement begins

  • Fixed price
  • Expert
  • Est. budget: $1,000.00

4 WATCHES MOBILE APP CONCEPT AND FUNCTIONS: I created a 14 year calendar that begins on September 23, 2017 and ends on September 23, 2031. The calendar is linked to a clock that's equally divided into four equal sections. Each of the 4 sections represents 1,260 days. The movement of the clock is clockwise, and it begins at the 6PM position. Each of the four sections is divided into 12 sub-sections called "houses." Each of the 12 houses represents 105 days. I have a very rough draft of the app cover page. There will be 8 or 9 tabs total. A "blinking" red block advances clockwise every 105 days to highlight the current position of the 48 houses. MOBILE APP TABS: TAB #1/HOME CURRENT 4 WATCHES "CLOCK" POSITION. Also Shows Current Date, Current "Watch", Current "House" & Current Time of Day. TAB #2 ABOUT THE FOUR WATCHES OF THE NIGHT TAB #3 DAILY CALENDAR: This is an actual functioning calendar app. Users are encouraged to post significant news events that occurred each day; TAB #4 14 YEAR CALENDAR. This tab breaks out to a list of 14 sub-tabs for the years 2017 thru 2031. These 14 sub-tabs break out to 12 more sub-tabs for each month of the corresponding year. This calendar can be edited by the user. TAB # 5 LIST OF THE 48 HOUSE NUMBERS AND THEIR DATES. This tab simply shows a list of the 48 Houses and their dates. For example: #1 September 23, 2017 - January 5, 2018 #2 January 6, 2018 - April 20, 2018 TAB #6 TO BE DETERMINED... TAB #7 Jump To House [1 to 48] This page allows users to enter numbers 1 through 48 to view the 105 day span of each "house" set against the calendar year. TAB #8 Jump To Any of the 5040 days [1 to 5040]. This page allows users to enter a number from 1 to 5040, to jump to that particular calendar day within the 14 year calendar. TAB #9 MERCH/SHOPPING

Jobs Per Page: Â