Your complete design & tech team — at the cost of a single hire.

We help businesses and startups build, improve, and scale apps that work. From MVP and AI integration to passkeys, accessibility, and XR — one remote team. UK-registered, trusted worldwide.

UK RegisteredRemote-firstAI & mobile appsAndroid & iOSDesign + dev + QA

Our apps — see what we build

4.4

Reviews on

We ship real apps to real users. Download our apps on Google Play and the App Store, or read reviews on Clutch and Trustpilot.

What we build (by outcome)

Businesses and startups hire us for these outcomes. Whether you want to launch fast, add AI, fix quality, or meet compliance, we deliver in one team.

  • Launch MVP fast

    From idea to working app in weeks. Product discovery, UX research, prototype to production, and investor-ready demos.

  • Redesign UX to improve retention

    App redesign service, UX audit, onboarding redesign, and conversion-focused UI so users stay and convert.

  • Add AI features (chat, search, automation)

    AI integration for mobile app: chatbots, LLM and RAG, voice, on-device AI, AI agents for support and sales.

  • Fix crashes + QA + release stability

    Mobile app QA testing, automation testing, crash fix, performance optimization, and release readiness.

  • Implement passkeys + security hardening

    Passwordless login, FIDO2 passkeys, phishing-resistant auth, and account takeover prevention.

  • Accessibility + compliance readiness

    WCAG 2.2 compliance, EAA and ADA, accessibility audit, inclusive design, and VPAT support.

  • XR and spatial training & workflows

    visionOS and Apple Vision Pro apps, Android XR, training simulators, AR remote assist, and 3D visualization.

Our apps

What businesses will keep paying for (2026–2030)

We align with platform shifts, regulation, and ROI so your product stays relevant. These themes drive long-term demand for app studios.

  • AI agents inside apps

    Task-specific AI agents for support, sales, HR, and workflows. We build agentic AI apps with human-in-the-loop and audit trails.

    Gartner predicts 40% of enterprise apps will include task-specific AI agents by end of 2026.

  • On-device and private AI

    Offline AI, Gemini Nano integration, and hybrid on-device + cloud for privacy, cost, and latency.

    Android and Apple are pushing on-device generative AI; we build apps that use it.

  • Spatial computing and XR

    visionOS, Android XR, training simulators, remote assist, and 3D data visualization for enterprise.

    Apple Vision Pro and Android XR are shipping; we build spatial and XR experiences.

  • Passwordless (passkeys)

    FIDO2 passkeys, phishing-resistant login, and faster sign-in conversion.

    Passkeys are the baseline for secure, accessible authentication.

  • Accessibility and compliance

    WCAG 2.2, EAA, EU AI Act readiness, and inclusive design so your app is compliant and usable.

    EAA and EU AI Act timelines make compliance a lasting budget line.

  • Performance and trust

    Fast load, low INP, UX improvements, and QA so your landing and app convert.

    INP is a Core Web Vital; we optimize for instant feel and trust.

Industries we build for

  • Healthcare & clinics
  • Fintech & lending
  • Logistics & delivery
  • Retail & POS
  • Education & coaching
  • Real estate
  • Manufacturing
  • Construction & field teams
  • Hospitality & booking
  • Insurance & claims
  • Agriculture & marketplaces
  • HR & workforce

What we do — design, build, integrate, and test

Mobile app development

Android and iOS apps from your idea. Flutter, native, or Kotlin Multiplatform. MVP to enterprise, with scalable architecture and store publishing.

App design (UX & UI)

UX audit, design system, conversion-focused UI, and Figma-to-code. Accessible, retention-driven design so users love your app.

AI in your app

AI agent apps, chatbot and LLM integration, RAG, on-device AI, and workflow automation. Human-in-the-loop and audit-ready.

Testing & quality (QA)

Manual and automation testing, crash reduction, performance optimization, regression and API testing, release readiness.

Passkeys & security

Passwordless login, FIDO2 passkeys, secure auth UX, and account takeover prevention so sign-in is fast and safe.

Accessibility & compliance

WCAG 2.2, EAA and ADA compliance, accessibility audit and remediation, VPAT and inclusive design.

Web, SaaS & dashboards

SaaS web apps, admin dashboards, customer portals, B2B apps, and INP-friendly front ends.

XR & spatial apps

visionOS and Apple Vision Pro apps, Android XR, training and remote assist, 3D visualization.

Publishing to stores

Google Play and App Store submission, policies, and release support so your app goes live correctly.

Why businesses choose Teamz Lab

  • One team for design, development, testing, and compliance — no juggling multiple agencies.
  • Outcome-based delivery: MVP, AI integration, passkeys, accessibility, or QA in one place.
  • Remote-first from the UK — we work with clients in Europe, USA, and beyond.
  • Ship in weeks: design-first process and proven workflow so you get a working app fast.
  • Unlimited feedback and revisions until you are happy.
  • We use research and data so your app fits real users and converts.
  • Future-proof stack: Flutter, native, Kotlin Multiplatform, visionOS, and modern backends.

Flexible engagement (monthly packages)

Galaxy Package

From $3,000/month

  • Research
  • Design
  • Web/App Development
  • Testing
  • Unlimited revisions

UX & UI Design

From $1,000/month

  • UX audit
  • Research
  • Prototype
  • UI system (Figma)

Mobile App Development

From $1,500/month

  • Flutter/Android/iOS
  • Release support
  • Scalable architecture

SQA Engineering

From $1,000/month

  • Manual testing
  • Automation
  • API testing
  • Performance testing

Book an Appointment

Frequently asked questions

How much does it cost to build an app?
It depends on scope. We offer monthly packages from design-only (from $1,000) to full app development and QA (from $1,500–$3,000/month). Contact us with your idea for a plan and cost estimate.
Can you build an app for my business?
Yes. We build mobile and web apps for businesses and startups — from MVP to full product with design, development, and testing. We work with non-technical founders and enterprises.
Do you build AI agent apps or add AI to my app?
Yes. We build AI agent app development, add AI chatbot and LLM integration, on-device AI features, and workflow automation. We can make your app AI-powered with human-in-the-loop and audit trails.
Can you implement passkeys or passwordless login?
Yes. We implement passkey implementation, FIDO2 passkeys, and phishing-resistant authentication so your app has secure, fast sign-in and lower account takeover risk.
Do you do WCAG 2.2 and accessibility compliance?
Yes. We offer accessibility audit for mobile app, WCAG 2.2 compliance, EAA compliance, and accessible UI design. We can deliver VPAT support and remediation.
Do you build visionOS or Apple Vision Pro apps?
Yes. We build visionOS app development and Apple Vision Pro app development for spatial computing, training, and 3D visualization. We also work with Android XR.
How fast can you ship an app?
Most MVPs ship in weeks depending on scope. We use a design-first process and proven workflow so you get a working app without long delays.
Do you do design before development?
Yes. We design how your app looks and works first, then we build it. You see the result before coding and avoid costly changes later.
Do you provide testing and quality assurance?
Yes. We test your app with manual and automation testing, reduce app crashes, and do performance optimization. We include QA in our packages and offer dedicated SQA engineering.
Can you fix my app if it is crashing?
Yes. We offer app crash fix service, regression testing, and performance optimization so your app store crash rate improves and users have a stable experience.
Do you work with startups and small businesses?
Yes. We work with startups and businesses of any size. You get one team for design, development, and testing — no need to hire multiple agencies.
Can you add AI features to my app?
Yes. We add AI chatbot, smart search, voice, on-device AI, or AI agent workflows to your existing app or new project. We integrate LLMs, RAG, and multimodal AI.
Do you publish apps to Google Play and the App Store?
Yes. We prepare your app for the stores and handle the release process so your app goes live correctly on both Android and iOS.
What technology do you use to build apps?
We use Flutter for most mobile apps (one codebase for Android and iOS), and we also use native and Kotlin Multiplatform when needed. For web we use modern stacks; for XR we use visionOS and Android XR.
Do you build SaaS or web apps?
Yes. We build SaaS web app development, admin dashboards, customer portals, and B2B web apps. We optimize for performance (including INP) and scalability.
Are you based in the UK?
Yes. Teamz Lab LTD is registered in the UK. We work remotely with clients in the UK, Europe, USA, Middle East, and elsewhere.
What's your minimum project length?
Our monthly packages typically start at one month, depending on the service. Contact us and we will suggest a plan that fits you.
Do you offer support after launch?
Yes. We offer maintenance, updates, and new features after your app is live so you can keep improving it.
How do you price projects?
We break your project into clear steps (design, build, test, comply) and give you a plan and price. No hidden costs.
How do I get started?
Contact us with your idea or a rough description of the app you want. We reply with a recommendation and next steps.
I have an app idea — where do I start?
Start by contacting us with your idea. We offer product discovery workshops and can help you validate your app idea, define an MVP, and give you a roadmap and cost estimate.

Ready to build, improve, or fix your app?

Contact us or book an appointment. Whether you need an MVP, AI integration, passkeys, accessibility, QA, or XR — we deliver design, build, and test in one team.