Best New York Flutter Development Companies

218 Companies - Rankings updated: April 01, 2026

All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.

United States × New York ×
  • Code. Creativity. Commerce.

    Code. Creativity. Commerce.

    We make first-class web solutions and tangible digital results affordable and acceptable for every business. Our clients trust us to deliver results through customized strategies and have been honored to help take their brands to new heights. Explore the logos of the companies we have worked with and see the  [... see all Intactdia LLC reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    12 Projects Listed
  • Website Design & Maintenance | Application Development | AI Consulting | SEO Marketing

    Website Design & Maintenance | Application Development | AI Consulting | SEO Marketing

    JanBask Digital Design is a name to reckon upon! We are a 360° Digital Solution Provider. With upbeat approaches, seasoned professionals & time-proven solutions, we know how to take businesses from now to wow.  [... see all JanBask Digital Design reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Portfolios Count
    9 Projects Listed
  • MVP & Product Development Company

    MVP & Product Development Company

    We are a premier global agency specializing in MVP and and Product Development, empowering groundbreaking startups to bring their ideas to fruition through cutting-edge technology.  [... see all Iotric reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $10/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    10 Projects Listed
  • The undisputed authority on BLE Bluetooth IoT and AI App Development

    The undisputed authority on BLE Bluetooth IoT and AI App Development

    We are the undisputed authority on Bluetooth BLE, IoT, and AI applications. Our Bluetooth and AI applications have proven to be very effective to clients across the United States and Europe. Call us for a free technical consultation and evaluation of your project.  [... see all Quartus Technology, Inc reviews ]
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Portfolios Count
    16 Projects Listed
  • FUELING DISRUPTION

    FUELING DISRUPTION

    We're EffectiveSofta custom software development company delivering effective digital solutions. Whether it's new product creation or scaling and maintaining complex systems, we empower businesses to grow and disrupt their industries.  [... see all EffectiveSoft reviews ]
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    29 Projects Listed
  • Great Software Starts With Great People

    Great Software Starts With Great People

    With 25 years of experience, Shinetech provides high-quality software developers who deliver results that create real business value. By embedding skilled, full-time developers into client teams, Shinetech lets companies focus on growing their business while we ensure software is evolved reliably.  [... see all Shinetech Software reviews ]
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    6 Projects Listed
  • An Award-Winning Agency With 13 Years of Expertise

    An Award-Winning Agency With 13 Years of Expertise

    Red Collar digital agency was founded in 2011, now the team consists of 100+ experts. Our two main service lines are web design and end-to-end development. We were announced the best agency in the world in 2017 and 2019 by CSS Design Awards and have twice won the Webby, the 'Oscar' of the Internet.  [... see all Red Collar reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    23 Projects Listed
  • Solving Complex Problems of the World Through AI

    Solving Complex Problems of the World Through AI

    Discover the Unlimited possibilities of innovation and cutting-edge Mobile, Web, Game, & Embedded technologies with EzappSolution.  [... see all Ezappsolution reviews ]
    Location
    New York City, New York
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
  • Superior Business Solutions

    Superior Business Solutions

    Sigma Software specializes in developing software and is a globally distributed team of more than 2000 skilled IT professionals, spanning 12 countries including the USA, Sweden, UK, Canada, Israel, Singapore, UAE, Australia, Austria, Ukraine, and more. With a track record of over 20 successful years, we take  [... see all Sigma Software reviews ]
    Location
    New York City, New York
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    14 Projects Listed
  • Award-Winning AI-Driven Digital Product & Software Engineering Company

    Award-Winning AI-Driven Digital Product & Software Engineering Company

    Apptunix is a global product engineering company founded in 2013, delivering AI-powered, enterprise-grade software for innovation and scale. With offices in the USA, UK, UAE, and India, we serve enterprises, governments, and startups in over 25 countries.  [... see all Apptunix reviews ]
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    23 Projects Listed
  • Driving Change Through Technology - Apps, Ecommerce, Staff Aug, BPO, Next Gen Tech and more!

    Driving Change Through Technology - Apps, Ecommerce, Staff Aug, BPO, Next Gen Tech and more!

    We are the nerds that every company wants in their tech division; experience, innovative and imaginative to the core!With more than 200 innovative software products and solution delivered, Trango Tech is the go-to digital powerhouse for businesses of all sizes looking to grow. We offer cutting edge  [... see all Trango Tech reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Portfolios Count
    17 Projects Listed
  • Boutique studio creating tailored web experiences.

    Boutique studio creating tailored web experiences.

    Reach for the sky. We are Zero Negative. Your sidekick for big ideas. In a nutshell, Zero Negative is a small, boutique full-service design and development studio with a focus on creativity and close collaboration with clients. We make stuff - websites, web apps, interactive experiences, branding, and  [... see all ZERO NEGATIVE reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    7 Projects Listed
  • Venture Infrastructure for Scalable Value Creation

    Venture Infrastructure for Scalable Value Creation

    SoftTeam is an international IT services and talent-augmentation company operating across locations such as Ukraine, Estonia, Poland, Austria and the United Kingdom. The firm provides models such as IT staff augmentation, dedicated teams and out-staffing to support businesses across industries including  [... see all SoftTeam reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    10 Projects Listed
  • Software Outsourcing & Development | 500+ Active Clients

    Software Outsourcing & Development | 500+ Active Clients

    Founded in 2009 by Nacho de Marco and Paul AzorĂ­n, BairesDev provides top 1% tech talent to a range of clients, from startups to Fortune 500 companies.  [... see all BairesDev reviews ]
    Location
    New York City, New York
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed
  • AI Solution Provider Company for Enterprise Growth

    AI Solution Provider Company for Enterprise Growth

    DigiPrima Technologies-Leading AI-driven software development, Generative AI, ERP Solutions, Custom Web and App Development, Data Visualization. we have successfully delivered 2,000+ projects across 40+ countries and 30+ industries, with 90%+ client satisfaction. Get 24 hours free development today!  [... see all DigiPrima Technologies reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    28 Projects Listed
  • Premium Software Development & Tech Recruitment Services

    Premium Software Development & Tech Recruitment Services

    IT managed services, offshore team in Poland , Romania , and LATAM , highly-technological clients with ultra high satisfaction.  [... see all DevsData Tech Talent reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $55/hr
    Portfolios Count
    15 Projects Listed
  • Software development company that delivers measurable results.

    Software development company that delivers measurable results.

    SparxIT is a trusted tech partner delivering expert web design and development, mobile solutions, and eCommerce development. We build custom digital platforms powered by AI, ML & IoT for startups to enterprises. Trusted by HP, Suzuki & Hisense. Lets shape your digital future.  [... see all Sparx IT reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Portfolios Count
    35 Projects Listed
  • Building Products AI-Native Way

    Building Products AI-Native Way

    Talentica Software is a leading product engineering company that helps startups, growth-stage, and technology companies build end-to-end products and achieve business outcomes. The company has specialized in AI & Machine Learning, Generative AI, Data Engineering, Blockchain, and Big Data  [... see all Talentica Software reviews ]
    Location
    New York City, New York
    Number of Employees
    500 - 999
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed
  • Merging Cross-Platform and AI Chatbot for Businesses

    Merging Cross-Platform and AI Chatbot for Businesses

    OnGraph Technologies offers a wide range of services and solutions to businesses, including custom web and mobile app development, chatbot solution, AI-based solutions, and IoT automation.  [... see all OnGraph Technologies reviews ]
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    23 Projects Listed
  • Digital Consulting That Drives Business Innovation

    Digital Consulting That Drives Business Innovation

    Robosoft Technologies is an experience engineering company trusted by large global enterprises, ambitious startups, and mid-size companies worldwide. Our mission is to simplify every aspect of digital life, from utility services to entertainment and productivity at work.  [... see all Robosoft Technologies reviews ]
    Location
    New York City, New York
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    16 Projects Listed
  • AI-Powered Software Development Company

    AI-Powered Software Development Company

    SISGAIN is the leading company that deploys the application with latest tools & techniques for better enhancement of business.  [... see all SISGAIN reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $25,000 - $50,000
  • The Result that Matters

    The Result that Matters

    We're striking digital experiences through second-to-none UI/UX design from SaaS to AI, from B2B to B2C.  [... view Linkup Studio profile ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    33 Projects Listed
  • Custom Software, Mobile Apps, Web Design, SEO, PPC, GA4

    Custom Software, Mobile Apps, Web Design, SEO, PPC, GA4

    Armix Group is an NYC-based company specializing in Custom Software Development, Web Design, Mobile Apps, SEO, PPC, GA4/GTM to meet each business's unique needs. With over 18 years of experience, we assist companies of all sizes in navigating the ever-evolving digital landscape.  [... see all Armix Group reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
  • We help business to scale!

    We help business to scale!

    AI & Software Development Agency. We deliver solutions across FinTech, HR & Recruitment, SportsTech, Healthcare,  eLearning and others.  [... see all Uinno reviews ]
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $45/hr
    Portfolios Count
    13 Projects Listed
  • Strategize. Develop. Deliver.

    Strategize. Develop. Deliver.

    Your business faces unique challenges. Let's work together to create a custom mobile app or web solution to meet those challenges head-on.  [... see all Zco Corporation reviews ]
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • A brand, design, and technology agency based in New York.

    A brand, design, and technology agency based in New York.

    Scalability Inc. is a New Yorkbased design and technology agency specializing in digital platforms, web and software development, and AI-driven systems. We partner with biotech, healthcare, and innovation-led companies to build scalable, high-performing digital products.  [... see all Scalability Inc. reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
  • The power of together

    The power of together

    Pwrteams builds and operates tech and engineering teams for companies of all sizes. We specialize in attracting and retaining skilled experts from Central and Eastern Europe, including Poland, Bulgaria, and Ukraine.  [... see all Pwrteams reviews ]
    Location
    New York City, New York
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    8 Projects Listed
  • Full-cycle software development services since 1997!

    Full-cycle software development services since 1997!

    Elinext offers a wide range of services, covering custom software development, healthcare software development, business analysis, UI & UX design, DevOps, cloud architecture, web and mobile development, QA & testing, support & maintenance, and software product engineering.  [... view Elinext profile ]
    Location
    New York City, New York
    Number of Employees
    500 - 999
    Portfolios Count
    28 Projects Listed
  • AR, VR and AI Agency.

    AR, VR and AI Agency.

    We are an award-winning AR, VR and Metaverse agency working with some of the world's largest brands as well as SME's and startups. Some of our most notable clients include: Microsoft, Peugeot, Best Buy, Citroen, Ford  [... see all Takeaway Reality reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Portfolios Count
    7 Projects Listed
  • Don't just grow, soar.

    Don't just grow, soar.

    Americaneagle.com is essentially a one-stop shop offering a comprehensive range of options for anyone wishing to thrive in their online pursuits. A family-owned, privately held business with a proven track record of success and reliability is Americaneagle.com.  [... see all Americaneagle reviews ]
    Location
    New York City, New York
    Number of Employees
    500 - 999
    Average Hourly Rate
    $175/hr
  • Web Design + Digital Marketing Agency | 20+ Years Experience

    Web Design + Digital Marketing Agency | 20+ Years Experience

    Top Notch Dezigns® is a full-service web design and digital marketing agency that specializes in custom websites tailored to meet diverse business requirements. With a focus on boosting brands, increasing conversions, and generating leads.  [... see all Top Notch Dezigns® reviews ]
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Portfolios Count
    12 Projects Listed
  • Building Ideas, Launching Product

    Building Ideas, Launching Product

    HestaBit is a globally recognized web and app development company. Our focus is on building market-intelligent tech solutions for both startups and enterprises. We've helped 500+ projects. Our client base is robust and includes Bill and Melinda Gates Foundation and Grey Group, Singapore.  [... see all HestaBit Limited reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $29/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
  • Top Rated Web Development Company in India

    Top Rated Web Development Company in India

    Promatics is an AI-powered web and mobile app development company building scalable, intelligent digital products. Our expert team blends design, engineering, and AI to deliver high-performance solutions with personalization, automation, and data-driven insights that drive real business growth.  [... see all Promatics Technologies Private Limited reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    9 Projects Listed
  • Leading Global Provider of Blockchain Technology Solutions and Software Development

    Leading Global Provider of Blockchain Technology Solutions and Software Development

    The company's specialists have solid expertise in blockchain consulting and development as well as machine learning, big data, artificial intelligence (AI), and AR/VR. Founded in 2007, PixelPlex has designed and developed 450+ successful projects for clients all over the world.  [... view PixelPlex profile ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $75/hr
    Portfolios Count
    15 Projects Listed
  • A disruptive development company.

    A disruptive development company.

    Providing Chatbot, Development, and website/app solutions. If you can dream it, we can build it. Intelligent apps require brilliant design and intuitive product strategy. We analyze and design every aspect of your project to ensure that its engaging, stylish, and easy to use.  [... see all Dogtown Media reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $140/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    11 Projects Listed
  • Tech-Savvy of Your Business

    Tech-Savvy of Your Business

    Encyphers is a B2B digital transformation partner providing AI, Enterprise Platforms, Web & Mobile Engineering, Digital Commerce, Cloud, Data & DevOps, and Experience & Marketing solutions to enterprises across Retail, Healthcare, SaaS, Finance, and Manufacturing.  [... view Encyphers profile ]
    Location
    New Hyde Park, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    41 Projects Listed
  • Where Science and Technology Work for You

    Where Science and Technology Work for You

    Abto Software is a full-cycle custom software engineering company, launched in 2007.With hundreds of delivered projects, we have earned the status of a trusted long-term software development partner for over 200 customers from North America and the EU.  [... view Abto Software profile ]
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $49/hr
    Portfolios Count
    45 Projects Listed
  • We Produce What You Think.

    We Produce What You Think.

    GwayERP is a custom software development company focused on delivering optimal business outcomes. Collaborating closely with clients, we ensure high-quality standards and provide tailored software solutions. Our approach involves creating software from scratch, aligning precisely with your specifications.  [... view GwayERP profile ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
  • Enterprise Grade App & Web Development Services

    Enterprise Grade App & Web Development Services

    At RichestSoft, we don't just build apps; we create seamless digital experiences that automate businesses. As a leading Mobile App and Web Development Company, we partner with visionary companies to bring their ideas to life, blending their vision with our cutting-edge technical expertise to spark future  [... see all RichestSoft reviews ]
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    9 Projects Listed
  • Delivering Scalable Digital Innovation

    Delivering Scalable Digital Innovation

    Helpful Insight delivers cutting-edge AI, mobile app, and web solutions tailored for startups, SMBs, and enterprises. We combine technical excellence with a collaborative approach to build impactful digital products and enhance internal tools, driving innovation and growth for businesses of all size  [... see all Helpful Insight reviews ]
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    8 Projects Listed
  • Anchored by Innovation

    Anchored by Innovation

    Since 2016, Anchor Points has crafted digital solutions that inspire and perform. We specialize in Website Development, Digital Marketing, Drupal, WordPress, and Custom Web Apps, blending creativity and strategy to drive results.  [... see all Anchor Points reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed
  • Build Fast Scale Smart Innovate With Purpose

    Build Fast Scale Smart Innovate With Purpose

    Neon Apps is a global product studio based in Istanbul and New York, specializing in high-quality mobile/web apps, SaaS, and AI-driven solutions.  [... view Neon Apps profile ]
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
  • Innovative design and development

    Innovative design and development

    Mobikasa is a full-service global digital agency headquartered in New York, delivering high-performance web, mobile, and e-commerce solutions since 2011. We help brands scale through custom apps, scalable storefronts, and data-driven marketing, blending strategy, design, and technology.  [... see all Mobikasa reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    13 Projects Listed
  • Build Your Intelligent Enterprise Business Applications

    Build Your Intelligent Enterprise Business Applications

    Fingent is a global custom software development company helping businesses turn their digital ambitions into reality. With over 20 years of experience, we specialize in building scalable, secure, and innovative technology solutions that drive operational excellence and business growth.  [... see all Fingent reviews ]
    Location
    White Plains, New York
    Number of Employees
    500 - 999
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    5 Projects Listed
  • We build software products that stand out

    We build software products that stand out

    Honeycomb Software is an IT Consulting and Software development company serving clients since March 2015.  [... view Honeycomb Software profile ]
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $36/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    14 Projects Listed
  • Comprehensive Software Solutions, All in One Place!

    Comprehensive Software Solutions, All in One Place!

    We deliver innovative software solutions that bring your passion projects to life, enabling them to ignite, grow, and thrive. Whether you need stunning web design or a sophisticated custom software system for your institution, we've got you covered.  [... see all Element Media reviews ]
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
  • Developing the best solutions for you

    Developing the best solutions for you

    We at Inventix believe in enhancing the world through app-driven experiences.  [... see all Inventix Labs reviews ]
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    18 Projects Listed
  • Full Stack Tech Consulting Agency

    Full Stack Tech Consulting Agency

    With 14 years of experience, a dedicated team of 120 professionals, and an impressive 4.7 rating on Google, we specialize in building and deploying world-class IT solutions that drive results.  [... see all Imenso Software reviews ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Portfolios Count
    12 Projects Listed

About The Author and Expert Reviewer

Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.

Former Development Director

Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.