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Web & Mobile

Web & Mobile Technology Services

We design and build fast, reliable websites, web apps, and mobile experiences that work as well on a phone as on a desktop. Clean engineering, thoughtful UX, and honest advice about what your audience actually needs.

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What We Do

Experiences that work everywhere your customers are

Whether it’s a marketing site that has to load instantly, a web app your team lives in, or a mobile app your customers keep on their home screen, we build for speed, accessibility, and maintainability, not just a nice first impression.

Websites & Landing Pages

Fast, accessible, SEO-ready sites that load instantly and convert, built on a CMS your team can update without calling a developer.

Web Applications

Dashboards, portals, and internal tools with real logic and data, responsive, secure, and built to grow with how your team actually works.

Mobile Apps

iOS and Android experiences, native or cross-platform, chosen honestly based on your budget, timeline, and how much the app needs to do.
Trusted by Growing Businesses
A few of the companies we have partnered with on real projects.

Looking for a web or mobile partner?

Book a call and we’ll help you scope the right platform for your audience and budget.

Turn to GISL
Driving Business Transformation

The web & mobile capabilities we deliver

Everything from the first pixel to a maintainable, high-performing product across web and mobile.

Frontend Engineering

  • Responsive, accessible UI
  • Design-system components
  • Performance budgets

Mobile Development

  • iOS & Android
  • Cross-platform builds
  • App store delivery

Backend & APIs

  • Secure APIs
  • Auth & accounts
  • CMS & content models

UX & Conversion

  • Clear user flows
  • Accessibility (WCAG)
  • Core Web Vitals
Our new site loads in a fraction of the time and actually converts. GISL rebuilt it around how our customers really shop, not how our old CMS wanted us to.
Tom Bricker
VP Marketing, Harborline Outfitters
Client story
Web

Sites and web apps built for speed and clarity

We build web experiences that load fast, read clearly, and are easy to maintain, with performance and accessibility treated as features, not afterthoughts.
Layouts that adapt cleanly from phone to widescreen, with attention to real content, not just breakpoints that look good in a mockup.
Dashboards, portals, and tools with real data and logic, built on a modern frontend and a secure, well-structured backend.
Headless or traditional CMS setups so your team can publish and update content confidently, without breaking the design.
Core Web Vitals, image and bundle optimization, and WCAG-minded markup so the site is fast for everyone and usable by everyone.
Sites and web apps built for speed and clarity

Our page load times dropped by more than half, and our team can finally update the site without calling a developer.

Client story
Mobile apps people keep on their home screen

Our app rating went from 3.2 to 4.7 stars within two months of the relaunch.

Client story
Mobile

Mobile apps people keep on their home screen

We help you choose the right approach, native or cross-platform, and build an app that feels fast, respects the platform, and is realistic to maintain.
When performance or deep platform features matter, we build native, following each platform’s conventions so the app feels right at home.
One codebase for both stores when it fits your budget and needs, a pragmatic path to reach more users faster.
Apps that stay useful on a spotty connection, with sensible offline behavior and reliable data sync when the signal returns.
App store submissions, over-the-air updates, crash monitoring, and ongoing maintenance so the app stays healthy after launch.

Ready to start your web or app project?

Book a call and we’ll map a realistic plan, usually a short discovery first.

Contact Us
Client Spotlight

Real projects, real partners

Digital Transformation

Modernizing Operations with Smarter Digital Solutions

We helped Axon strengthen its digital presence and streamline key business processes with a more scalable, user-focused technology solution.

“A collaborative approach, clear communication, and solutions built around our business needs.”

Arif Iftekhar
CEO, Axon Corporation Ltd.
Related Services

Our other capabilities

These are the other areas we cover, and they often overlap with this work.

AI & Intelligent Automation

AI apps, intelligent workflows, and process automation.

Explore

SaaS & Product Engineering

From fast MVP to enterprise-grade SaaS platform.

Explore

E-commerce Technology

Commerce experiences that connect tech to revenue.

Explore

Enterprise Solutions

Custom software, integrations, and enterprise tools.

Explore

Digital Marketing & SEO

Reach the right U.S. audience and grow measurably.

Explore

Cloud & Digital Transformation

Modernize infrastructure, apps, and operations.

Explore
Why Work With GISL

More than a technology vendor

We work as an extension of your team, taking ownership of the technology challenges standing between where your business is today and where you want it to go.

AI-First Thinking

AI is not an add-on we bolt onto a project at the end. We identify where intelligence can create real business value and design it in from day one.

Business Before Technology

We start by understanding your business problem, then determine the right technology to solve it, not the other way around.

End-to-End Capability

From strategy and UX to engineering, AI, cloud deployment, and ongoing support, one partner, start to finish.

Engineering Depth

Strong, proven capabilities across AI, SaaS, web, mobile, e-commerce, and enterprise systems.

Long-Term Partnership

We do not just deliver projects and disappear. We build technology relationships designed to evolve as your business grows.

See how we work

Learn more about the team and the principles behind every engagement.

Learn More About Us
Let us build it together

Let’s build a great web or mobile experience

Book a call and we’ll talk through your goals and audience, no jargon, no obligation.

Book Now
Expertise in Diverse Industries

Across the industries we serve

We apply the same core capabilities to the specific needs of each industry we work with.
See all industries
Healthcare & Health-Tech Finance & Fintech Retail & E-commerce Real Estate & PropTech Manufacturing & Logistics Professional Services SaaS & Technology View all industries
How We Work

How we take your project from idea to launch

The same structured process we use across every engagement, designed to reduce complexity and deliver results.
01
Discover

Understand your business, users, and the workflows in play.

02
Strategize

Define the right technology, AI, and security approach for your goals.

03
Design

Turn strategy into clear flows and a solid solution architecture.

04
Build & Integrate

Develop, integrate, automate, and deploy, with testing throughout.

05
Grow

Support, monitor, and continuously improve as your business evolves.

Technologies We Work With

A modern web & mobile stack

We pick tools for reliability, cost control, and long-term maintainability. The exact stack is chosen per project; the list below is representative.
Languages
TypeScriptJavaScriptSwiftKotlinDart
Web Frameworks
ReactNext.jsVueAstroTailwind CSS
Mobile
React NativeFlutterSwiftKotlin
CMS
WordPressSanityContentfulStrapi
Cloud & DevOps
VercelAWSCloudflareNetlifyGitHub Actions
FAQs

Web & mobile questions, answered

It depends on your budget, timeline, and how demanding the app is. Cross-platform reaches both stores faster and cheaper; native is worth it when performance or deep platform features matter. We give you an honest recommendation, not a default.
Usually, yes. We audit Core Web Vitals, images, scripts, and hosting, then fix the biggest offenders first. We’re clear about which gains are quick wins and which need deeper work.
Yes, we set up a CMS and content model designed around how you actually publish, so your team can update copy and pages without breaking the design or calling us.
We build with accessibility in mind (semantic markup, contrast, keyboard support, WCAG guidelines). For strict compliance needs, we’ll scope a dedicated audit rather than overclaiming.
Yes, maintenance, monitoring, app store updates, and ongoing improvements. We shape it around your needs, from occasional support to a dedicated team.
Related Content

Insights on web & mobile

View all insights
Native vs. cross-platform, decided honestly
Guide

Native vs. cross-platform, decided honestly

A simple framework for choosing your mobile approach.

Making a slow website genuinely fast
Article

Making a slow website genuinely fast

Where the real Core Web Vitals wins come from.

Choosing a CMS your team will actually use
How-to

Choosing a CMS your team will actually use

Headless or traditional, matching the tool to the team.

Let us talk

Tell us about your web or app project

Share what you have in mind, site, web app, or mobile, and we’ll come back with an honest view of how we’d approach it.
hello@gisltech.com
+1 (323) 540-5917
AI-Powered. Future-Driven.
AI-powered technology partner helping U.S. businesses build, transform, and scale. Proudly serving businesses across the United States.
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