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Web & Mobile

Web & Mobile App Development for AI Products

Front-ends and apps built to sit over an AI backend — streamed tokens, tool calls, and citations rendered the moment the agent produces them.

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Most AI products ship a capable backend behind a front-end that was never built for one — a spinner where a streamed token should render, a chat window that drops the citation the backend already computed, a mobile app that polls for an update instead of subscribing to a running agent.

We build the interface layer to match what's underneath: token and tool-call streaming rendered as it arrives, citations and confidence surfaced inline rather than buried in prose, and one React Native codebase for iOS and Android when the product needs to run on a phone, with offline support for teams that can't assume a connection. On the web, that means conversion-focused sites and dashboards with sub-second loads and clean semantic markup — the front door to the product, built with the same care as the backend behind it.

Everything ships on the same prototype-first, AI-accelerated process we use across the company: you see and approve a working version before full engineering starts, and the two architects who scope it are the same two who build and review it.

The problem we solve

Interfaces that weren't built for what's running behind them — no streaming, no inline citations, mobile apps that poll instead of subscribing to a live agent. The backend is production-grade and the front-end undersells it.

What you get

Streaming token and tool-call rendering, not a spinner until the response completes
Citations and confidence rendered inline, sourced from the same data the backend cites
One React Native codebase for iOS and Android
Offline-first mobile with real-time sync once connectivity returns
Sub-second web load times and clean semantic markup for SEO and crawlability
Analytics and event tracking wired in from day one, not bolted on after launch

What we deliver

  • Interactive prototype of the core screens before full engineering
  • Production web app or website, deployed with CI/CD
  • Cross-platform mobile app (iOS + Android) where the product needs one
  • Analytics, SEO, and performance setup
  • App store submission support and documentation

Who it's for

  • AI products whose front-end can't keep up with a streaming backend
  • Startups needing an iOS and Android app from one codebase on one budget
  • Teams whose mobile users need the app to work without a reliable connection

Indicative investment

Transparent ranges so you can plan. Final scope and quote are confirmed on your scoping call.

PackageFromTimeline
Website / Marketing Site$3,0001–3 weeks
Web App / SaaS Front-End$12,0006–10 weeks
Cross-Platform Mobile App$13,0006–14 weeks

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Frequently asked questions

How much does it cost to build a web app or mobile app front-end?

A marketing site or website starts at $3,000 and runs 1–3 weeks. A web app or SaaS front-end starts at $12,000 (6–10 weeks), and a cross-platform mobile app starts at $13,000 (6–14 weeks). Pricing depends on the number of screens, integrations, and whether the backend already exists.

Do you build separate apps for iOS and Android?

No — we build from a single React Native codebase that runs on both iOS and Android. That cuts cost and timeline while still supporting offline mode, push notifications, and real-time sync.

Can the front-end handle a streaming AI backend?

Yes — that's the specific problem this service solves. Tokens and tool calls render as the agent produces them, citations are surfaced inline rather than parsed out of prose after the fact, and the UI reflects the backend's actual state instead of polling for it.

Will the app work without an internet connection?

Where the use case calls for it, yes. We build offline-first on mobile — local state persists and syncs in real time once connectivity returns, so field or low-connectivity users aren't blocked by a dropped signal.

Will the website actually rank on Google?

We build for performance and SEO from the start — fast load times, clean semantic markup, structured data, and analytics wired in from launch. Ranking also depends on content and domain authority over time, which we can advise on, but the technical foundation is not the bottleneck.

Ready to scope your web & mobile project?

Start with a scoping call. You leave knowing the timeline, the fixed price, and whether it's a fit — before you commit to anything.

Book a scoping call