The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
PhoneGap is a mobile application development platform based on open source technologies that is used to rapidly build cross platform mobile applications without coding for each platform individually. Hiring a PhoneGap Expert allows organizations to take advantage of the benefits of a hybrid mobile development approach and create branded and authenticated user experiences for their own mobile application.
PhoneGap Professionals are experienced in working with a combination of languages such as HTML, CSS, JavaScript, Android SDK and iOS SDK. Each developer's expertise is tailored to the needs and goals of their customer’s project, making it easier for organizations to get the most out of their investment in PhoneGap technology. PhoneGap Professionals have the experience necessary to create cross-platform mobile applications that truly perform across multiple devices, including phones, tablets, wearables, and more.
Here’s some projects that our expert PhoneGap Experts made real:
PhoneGap allows businesses to have consistent user experiences on a range of different platforms, allowing them to boost customer satisfaction and gain competitive advantages. With an experienced PhoneGap Expert working on their project, clients can develop impactful, custom cross platform mobile applications that truly meet their needs. If you're looking for someone who can help you optimize your mobile development projects with PhoneGap technology, posting your project on Freelancer.com is the best way to find an expert who's perfect for your project.
De 34,167 opiniones, los clientes califican nuestro PhoneGap Experts 4.9 de un total de 5 estrellas.PhoneGap is a mobile application development platform based on open source technologies that is used to rapidly build cross platform mobile applications without coding for each platform individually. Hiring a PhoneGap Expert allows organizations to take advantage of the benefits of a hybrid mobile development approach and create branded and authenticated user experiences for their own mobile application.
PhoneGap Professionals are experienced in working with a combination of languages such as HTML, CSS, JavaScript, Android SDK and iOS SDK. Each developer's expertise is tailored to the needs and goals of their customer’s project, making it easier for organizations to get the most out of their investment in PhoneGap technology. PhoneGap Professionals have the experience necessary to create cross-platform mobile applications that truly perform across multiple devices, including phones, tablets, wearables, and more.
Here’s some projects that our expert PhoneGap Experts made real:
PhoneGap allows businesses to have consistent user experiences on a range of different platforms, allowing them to boost customer satisfaction and gain competitive advantages. With an experienced PhoneGap Expert working on their project, clients can develop impactful, custom cross platform mobile applications that truly meet their needs. If you're looking for someone who can help you optimize your mobile development projects with PhoneGap technology, posting your project on Freelancer.com is the best way to find an expert who's perfect for your project.
De 34,167 opiniones, los clientes califican nuestro PhoneGap Experts 4.9 de un total de 5 estrellas.Google Play Console is blocking my Ionic-based Android build with the message “Your app does not support 16 KB memory page sizes.” I clearly see the Memory page size not supported error during the pre-launch check, and every attempt I have made so far has failed. What I have already tried • Removed the cordova-file-transfer plugin and replaced its usage with Angular HttpClient, then rebuilt and uploaded a new AAB – same rejection. • Followed several forum hints about tweaking build configurations, but none removed the warning. What I need from you 1. Pinpoint the exact cause inside the current Ionic/Capacitor build (Gradle, NDK, native libraries, or any third-party plugin). 2. Supply the precise code, Gradle, or configuration changes required to make t...
I’m planning to launch a full-featured fantasy app that will run smoothly on both iOS and Android. The core of the project is to let users follow games in real time and make informed roster moves, so two elements are non-negotiable: • Real-time scoring updates • Player statistics I have the screens roughly sketched out and will share them once we kick off so you can translate the flow into polished React Native or native builds—whichever you feel delivers the best performance and future scalability. Clean architecture, clear documentation, and store-ready builds are part of the expected hand-off. If you’ve shipped fast, responsive fantasy or sports apps before and can demonstrate solid backend integration for live data feeds, I’d love to hear how yo...
Special Note : Only apply if you able to work in our budget and fix those bugs which mentioned in PDF document. Dont apply any fake offers please. Only apply if you able to work in my budget. ===== Hello Flutter expert, We are running app live on Appstore . We require a simple payment gateway where User book sessions and get service from artist musician for thier services and then Musicians artist get paid and in that process we earn our 10% fee in our account automatically. >>>This is what old developer said about payment gateway on which he worked so far... the only task that remains to make all process works is : - Linking bank account to musician profile account : When a musician creates his profile, he should link his bank account through a process that let's him cre...
Project Title: Build MVP Marketplace App for Buying, Selling & Trading Fragrances (with Buyer Protection) --- Project Overview: I am looking for an experienced developer (or small team) to build an MVP (Minimum Viable Product) of a mobile-friendly marketplace app focused on fragrances (perfumes, colognes). The platform will allow users to: - Buy and sell fragrances - Trade fragrances with other users using a matching system - Use a secure payment system with buyer protection This is an MVP, so the goal is to build a simple, functional version first, not a full-featured app. --- Core Features Required: 1. User Accounts & Profiles - Sign up / login (email + social optional) - User profiles with basic info - Verified user badge which is a paid service offers selle...
OpenRouter AI接口中转代理平台 悬赏开发需求 一、项目概述 本次需求为开发一套基于OpenRouter的AI大模型API中转代理系统,实现兼容OpenAI API格式的接口转发服务,配套完整的后台管理、用户密钥管理、Token计费扣费、订单充值等功能,系统可直接商用、对外售卖AI接口流量,支持多用户使用、数据可视化管理,部署后可直接上线运营。 二、核心功能需求 (一)API中转核心功能 1. 接口兼容:完全兼容OpenAI官方API格式(/v1/chat/completions、/v1/models等主流接口),支持Chat、流式输出、多模型调用,用户无需修改代码,仅更换接口地址和密钥即可使用 2. 模型转发:对接OpenRouter平台所有模型,支持模型自动映射、路由转发,可后台自定义启用/禁用模型、设置模型费率 3. 高可用转发:支持请求超时重试、异常报错返回、请求限流、IP防刷、单密钥并发限制,保证接口稳定性 4. 请求日志:完整记录每一次API调用的用户、密钥、调用模型、输入输出Token数、扣费金额、请求时间、IP地址、调用状态 (二)密钥管理系统 1. 用户密钥生成:后台可手动/自动生成用户专属API密钥,支持密钥启用/禁用、设置密钥额度、设置密钥过期时间 2. 密钥绑定:单用户可绑定多个密钥,每个密钥独立计费、独立统计用量,支持密钥批量生成、批量导出 3. 密钥权限:可限制单个密钥可调用的模型、每日/每月最大Token量、最大并发数 4. 密钥监控:实时查看密钥调用状态、剩余额度、已用流量,异常密钥一键封禁 (三)计费扣费系统 1. 计费规则:按Token计费,支持分别设置输入Token单价、输出Token单价,不同模型设置不同费率,后台可灵活修改 2. 实时扣费:用户调用API成功后,实时扣除对应密钥余额,余额不足...
I’m looking for an experienced mobile developer who can take a fresh idea and turn it into a polished app that runs smoothly on both iOS and Android. At this stage I have the core concept and a few wireframes, but I’m relying on your technical expertise to recommend the best stack—whether that’s Flutter, React Native, native Swift/Kotlin, or another proven solution—and then see the project through to launch. What I need from you • Collaborative refinement of the feature set and user flows • UI/UX design that feels native on both platforms • End-to-end coding, unit testing, and integration testing • App Store / Google Play submission support, including compliance checks • Post-launch bug-fix window • Old data connect Acce...
I want a lightweight mobile app that lets anyone quickly discover cooking recipes written entirely in Malayalam. The core of the project is a powerful yet simple search engine. Users should be able to open the app and, without signing in or creating a profile, find dishes in three intuitive ways: by typing the exact recipe name, by entering one or more ingredients they already have on hand, or by filtering for total cooking time. I am happy for you to choose the most suitable mobile stack—Flutter, React Native, or a native build—so long as the final result runs smoothly on both Android and iOS and the interface remains crisp for Malayalam text. A tidy, readable codebase and clear inline comments are essential because I will maintain the project after hand-off. Deliverables: &...
Hi I will share the details with the shortlisted candidates. thanks
Project Overview: The application should support real-time audio calling, meeting creation, and dial-in/out capabilities. It should be scalable, secure, and user-friendly. Key Features Required: * User registration & login (email, OTP, or social login) * One-to-one and group video calls * Meeting scheduling & joining via link * Dial-in/dial-out functionality (VoIP or PSTN integration) * Call recording (optional) * Screen sharing * Chat during calls * Admin dashboard * Push notifications Platforms: * Web application (React / Angular / Vue preferred) * Mobile apps (Android & iOS - Flutter/React Native preferred) Backend: * Node.js / Python / Java (open to suggestions) * WebRTC / Agora / Twilio / Jitsi integration Other Requirements: * Strong experience with real-time comm...
I’m building a mobile application that lets people broadcast text-only messages to everyone inside a geographic zone they draw on the map. The moment a user enters, exits, or simply stands within that zone, the message should arrive instantly; anyone outside the boundary stays silent. Zones are created on-the-fly by the user—think free-form circles, polygons, or any latitude/longitude shape they need—so the system has to watch position changes continuously without draining the battery. The app must run natively on both iOS and Android and feel identical on each platform. I’m comfortable if you work in React Native, Flutter, or separate native stacks, as long as the final builds pass App Store and Google Play review. Behind the scenes a lightweight backend should st...
I need an appointment mobile application produced for both iOS and Android from the same code-base. Native Swift/Kotlin, Flutter, or React Native are all acceptable—what matters most is a smooth, reliable user experience on each platform. Once an NDA is in place I’ll share the feature set, wireframes, and user-flow notes; you will then handle the build, testing, and store release. Deliverables 1. Complete, well-commented source code. 2. Test builds that run on the latest iOS and Android versions. 3. App Store and Google Play–ready binaries, including screenshots, icons, and compliance assets. Acceptance criteria • Compiles without errors in current Xcode and Android Studio. • No critical/high bugs after one week of user testing. • Approved ...
I’m offering the full source code and backend API for a production-ready Photo Editor app. All core features—photo upload, live filters/effects, secure save/delete, and a fast Node/PHP API—are already finished and tested. Right now I just need the branding swapped so it’s ready for release under your name. You’ll supply the new app icon (the design is already final on your side); I’ll integrate it throughout the Android project, rebuild the APK/AAB, and hand back a store-ready package along with the updated source. If later you decide you’d like deeper UI tweaks or even new features, we can scope that too, but the immediate deliverable for this job is: • Updated icon integrated across launcher, splash, and manifest • Clean, signe...
We are building a mobile-first SaaS platform with AI integration focused on improving real-time operational workflows within a traditional industry. The product combines voice input, AI-generated outputs, location-based tracking, and a web-based dashboard to streamline data capture, reporting, and visibility. This is an early-stage project (pre-MVP) with a clear concept and initial designs already prepared, and we are seeking a strong developer or small team to build the first version. The scope includes a mobile application with user authentication, voice input, data submission, and GPS logging, alongside a web dashboard for data viewing, filtering, and report-style outputs. The system will also integrate AI capabilities such as speech-to-text and structured text generation using LLM APIs...
I already run a Classima-based listing site and have purchased the official React Native source code that RadiusTheme supplies for the companion mobile apps. Your assignment is straightforward: start at step 1 of the guide below and carry it right through to successful publication on both stores. What I will hand over: • The complete, unmodified app code package • My active developer accounts for both Google Play and Apple App Store What I need from you: • Build, configure and connect the app to the existing WordPress/Classima backend exactly as documented. • Apply a handful of minor tweaks I will specify once we begin (nothing structural—mostly wording and colour adjustments). • Create any missing store-listing assets—icons, feature gr...
I run a funeral home and now need a fully-functioning mobile application published on both the Apple App Store and Google Play. The core of the product will be an API-driven workflow that allows families to access selected services on demand. Users must be able to pay either a one-time “per use” fee or opt into an unlimited monthly subscription inside the app, so seamless in-app purchase and card processing are essential. You are free to choose the best cross-platform stack—React Native, Flutter, or another framework you feel suits the scope—as long as the final binaries meet every current store guideline for iOS and Android. What matters most to me is a smooth build pipeline, clean code, and a hassle-free submission process; I want the app live and discoverable un...
I’m building an Android-only application called Near Hero and need a developer who can take it from concept to a polished first release on Google Play. Core scope • Account system with secure sign-up, login, and editable user profiles • Fast, reliable in-app messaging between users (text, emojis, image attachments) that remains responsive even on spotty mobile networks What I already have: the brand name, rough wireframes, and a feature priority list. What I need from you: clean Kotlin-based code, a lightweight backend/API of your choice (Firebase, Supabase, or a framework you’re comfortable with), and guidance on publishing so the final APK meets current Play Store requirements (target SDK, privacy labels, adaptive icons, etc.). I’ll share UI mock-...
Saya ingin membangun sebuah aplikasi seluler media sosial yang berfungsi mulus di Android maupun iOS. Fitur inti yang saya butuhkan adalah Pesan pribadi yang aman, cepat, dan mudah dipakai—pengguna harus bisa mengirim teks, foto, serta stiker dengan enkripsi end-to-end. Teknis yang saya bayangkan: • Stack lintas-platform seperti Flutter atau React Native agar satu basis kode dapat dirawat efisien. • Backend real-time (Firebase, Supabase, atau teknologi setara) untuk sinkronisasi pesan instan. • Sistem autentikasi sederhana via e-mail atau nomor ponsel. • Panel admin dasar untuk memantau laporan penyalahgunaan. Walau tahap pertama berfokus pada Pesan pribadi, arsitektur perlu cukup fleksibel supaya fitur lain—misalnya notifikasi push atau berbagi foto...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
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