Hire the Best Marvel App Freelancers in California

ASO Specialist & iOS Developer | App Store Growth Strategy for Health, AI & Lifestyle Apps I help mobile apps dominate search rankings and convert visitors into loyal users. Combining deep iOS development expertise with advanced ASO strategies, I offer a technical approach to App Store Optimization that pure marketers cannot match Core Expertise & High-Performance Niches: I specialize in scaling high-monetization consumer apps across competitive verticals: - Health & Fitness: Blood Pressure monitors, Women's Health (Period Tracking), Calorie Counters - AI & Entertainment: AI Companion, AI Girlfriend, Chatbot apps, Personalization engines - Finance & Utilities: Budgeting tools (competitors like Yukka), Bidding apps, Investment trackers - Lifestyle: Horoscopes, Astrology, Daily Predictions, Wellness guides Technical ASO Stack: - Keyword Research: Semantic core building, competitor gap analysis, long-tail keyword discovery - Metadata Optimization: Title, Subtitle, Keyword Field (100 chars), Description localization - Conversion Rate Optimization (CRO): A/B testing icons, screenshots, and preview videos to boost Tap-Through Rate (TTR) - Analytics: Deep dive into App Store Connect data, impressions, and conversion funnels - Why Work With Me? - Unlike standard marketers, I understand the technical constraints of iOS and Swift. I know how algorithm updates impact indexing and ensure your metadata complies with Apple Guidelines to avoid rejections Proven Results: - Increased keyword visibility by 40%+ for Health & Fitness apps - Improved conversion rates from 2% to 5% for AI Companion niches - Successfully launched apps in Top 10 for competitive Horoscope & Finance categories Tools: AppTweak, Sensor Tower, MobileAction, App Store Connect, Figma, Data AI, ML personal tools Ready to grow your app? Invite me to your job, and let's discuss a custom growth strategy

I build polished, privacy-first iOS apps that people actually want to keep on their home screen. I'm a self-taught Swift/SwiftUI developer who came up through ~10 years of professional web development (TypeScript, Next.js, React), so I bring real engineering discipline to mobile. Clean architecture, thoughtful state management, and code that's built to last. I don't just write code. I take products from concept to live on the App Store: market research, App Store Optimization, design systems, and launch. Apps I've designed and shipped: Last Time I: Habit Tracker — a dead-simple habit and routine logger built around one question: when did I last do this? Lately — a personal CRM for staying close to the people who matter, with a hand-crafted design system and a privacy-first, one-time-purchase model. Critter Ledger — a clean tracking app with a focus on simplicity and delightful UX. I've also built specialized companions for tabletop and trading-card gamers, and I'm currently developing a subscription-based automotive maintenance app — so I'm comfortable across one-time-purchase, freemium, and subscription models. What I bring to the table: ✅ Native iOS development in Swift & SwiftUI (no cross-platform shortcuts) ✅ Clean, testable architecture: reducer patterns, deterministic state, proper separation of concerns ✅ App Store Optimization: keyword research, metadata strategy, competitive analysis. ✅ Design sensibility: I sweat typography, spacing, and the small interactions that make an app feel premium. ✅ Modern toolchain experience: App Intents, the latest iOS APIs, and AI-powered features where they genuinely add value. ✅ A product mindset: I'm happy to push back on scope creep to help you ship something focused and great. How I work: I communicate clearly, set explicit boundaries on scope, and care about shipping. Whether you need a brand-new app built from the ground up, an existing app rescued or polished, or ASO help to get discovered, I'd love to hear what you're building. Let's make something people love to use.

Hello, its May 8th 2026, and I am hopping back onto Upwork to help small (and big) businesses have production ready apps and websites. I am a small business owner, self employed here to help you create/edit your website or app. I am here to help you within your budget! AppCatalyst LLC I have helped maybe 35 Apps get on the app store, and over 50+ websites that are available for you to check out! Very good with communication and understanding your goals before beginning projects! Let me know how I can help :)

I'm an entry-level creative article author and closed captions. I love everything in entertainment, such as gaming, movies, TV, books, graphic novels, and music. I'm just starting my career on Upwork. I'm looking at freelance careers where I either provide audiovisual CC and or some creative article writing. Skills 1. I'm knowledgeable in video creation, scripts, social media creation, design, and photography. 2. As a Closed Captionist, I work with new cutting-edge AI technology, learning seamless skills, specifically Notta AI and Gling AI. I'm already familiar with how to use both of them, I'll need a client base to prove those skills and promote efficiency. If you want to know my asking base pay, a 1 minute video = $100. Less than a minute = 100 still. 3. I'm highly experienced with Microsoft Word Document and Grammarly because I have a strong writing background (creative, technical). I'm an avid writer when it comes to speed and accuracy. 4. I continuously follow entertainment and pop-culture news such as video games, movies, television, and music in the mainstream, indie, or international market. I like to have a diverse perspective as much as possible. 5. I love YouTube, and I'm familiar with YouTube creation. Disclaimer: Regular communication is essential to me via email, Slack, WhatsApp, and Zoom. I want to work for you until REAL WORK is verified and official. Virtual work means I'm not on my phone. I'm on my laptop. I work in the California Pacific Time Zone. I'm a kind, flexible, and no-nonsense person, and I like to have a schedule and plan when I'm working for you, preferably with deadlines and at a fixed price per project only.

I'm one of the top social multiplayer game developers on Upwork. I only work with serious employers who are looking to make professional grade projects. If this is you, please get in touch with me and I'll provide you a list of my full portfolio for your review.

I’m a Los Angeles based full-time developer & creative director with 15+ years of experience in marketing and product development. Since 2014, I’ve successfully delivered more than 400 projects to a big range of clients and worked with such Fortune 500 brands as Procter & Gamble, McDonald's, Land Rover, Volvo, Builders First Source, PepsiCo, Red Bull, and Bosch. I strive to develop unique and innovative products that convey your company’s message and values. Explore my lastest iOS apps: apps.apple.com/us/app/oopi-ai-photo-studio/id6753609809 apps.apple.com/us/app/sunkiss-tracker-uv-tanning/id6746349188 apps.apple.com/us/app/slay-virtual-try-on/id6744546281 apps.apple.com/us/app/saint-ai-confess-privately/id6742357784 My Services: React Native Development Expo Apps Web apps & sites Development UX/UI Design E-commerce About: Top Rated UpWork Freelancer Excellent Feedback History 15+ years of experience in Graphic Design & Marketing. Trusted by Fortune 500 brands as Procter & Gamble, McDonald's, Land Rover, Volvo, PepsiCo, Red Bull, Builders First Source, and Bosch. More than 400 projects delivered since 2015.