Web & Mobile Development

Production-grade apps for web and pocket.

Full-stack Next.js, React Native, Swift, Kotlin. From first commit to App Store in six weeks. Same team, same standards, same ship-date.

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Apps shipped

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Uptime · prod

0.0★

Avg store rating

app.d1versy.com

iPad · landscape

iOS · 17

The problem

Most apps die in the handoff.

Three product specs ago, the team forgot what they were building. By launch day, the UX team and the backend team are shipping different products.

73%

of mobile apps

Get under 1,000 installs in 12 months.

Not because the idea is bad — because the team shipped six features nobody asked for instead of one feature that works.

4.5 mo

average MVP timeline

Is three months too long.

By the time you've shipped, the market window closed, the budget evaporated, and the lead engineer is interviewing elsewhere.

$182k

avg burn on wrong stack

The "rewrite in year two" is real.

Choose the wrong framework, the wrong infra, the wrong ORM — and year two becomes a rewrite-or-die crisis nobody planned for.

Live build pipeline

From commit to App Store in 47 seconds.

Every push runs the same four stages. Type-checked code, hot-bundled to native and web, rendered into a real device sim, deployed to a unique URL. This is exactly what your team gets — minus the typo.

Code

edit

// app/components/Button.tsxexport const Button = ({ children }) => (  <button className="btn-neon">    {children}  </button>); // 6 lines · ✓ typecheck

Compile

build

tsc

✓

vite

✓

expo

✓

bundle

✓

142 kb · ready↗

Render

sim

Deploy

prod

app.d1versy.cloud/______

Live

47s

Build time

142kb

Bundle size

Lighthouse

Our process

Five weeks. One product.

Scope locked in week 0, code shipping by week 5. The schedule is the contract — and the contract holds.

Week 0

Spec & Architecture

Tight scope wedge. Pick the stack. Lock the interfaces between UI and API before a line of code is written.

~ 3 days

Weeks 1–3

Sprint Build

UI and API in parallel, daily deploys, weekly demo. You see the product grow on a Vercel preview, not in a backlog.

~ 3 weeks

Week 4

QA & Store Submit

Playwright + Detox e2e, store screenshots auto-generated, App Store + Play submissions queued together.

~ 5 days

Week 5+

Iterate & Scale

Feature flags wired from day one. Hot-paths instrumented. Ship every Tuesday until you tell us to stop.

ongoing

Capabilities

Everything between idea and store-shelf.

Six surfaces, one team. We don't hand off between agencies — design, frontend, backend, mobile, infra and observability live in the same Slack channel.

What we ship — three form factors, one codebase.

Web, iOS, Android. Shared component library, shared design tokens, shared analytics. Update once, deploy three times.

DASHBOARD · WEB

CMS · iPad

USER · iOS

Type-safe full-stack

tRPC + Zod + Prisma. Compile-time contract between client and server. Refactors that don't break things.

Design system on day 1

Tokens → Figma → code in one round-trip. New screens take days, not weeks. Brand stays consistent at scale.

Lighthouse 95+

Core Web Vitals as a release gate, not an afterthought. SSR, edge functions, ISR, image pipeline — wired before the first ship.

App Store ops

Submission, screenshots, ASO, privacy manifests, TestFlight, Play closed tests — handled. Approval-first-try track record.

Analytics that matter

PostHog, Mixpanel, custom funnels. Cohort retention dashboards on launch day, not on month three.

Hardened auth

Passkeys, OAuth, magic links, biometric on mobile. SOC 2-grade defaults; no rolling your own crypto.

Our stack

Battle-tested. Boringly reliable.

No bleeding-edge for the sake of it. We pick the stack that ships and stays shipped.

Frontend

Next.jsReactTypeScriptTailwindFramer MotiontRPCReact Query

Mobile

React NativeExpoSwiftSwiftUIKotlinJetpack Compose

Backend

NodeNestJSPrismaPostgresRedisGraphQLHono

Why D1VERSY

The other options, side by side.

	D1VERSY	Freelancers	Big agencies	In-house
Time to first commit	3 days	2 weeks	6 weeks	3 months
Same team frontend + mobile + backend	●	○	◐	◐
Daily Vercel previews	●	◐	○	◐
App Store submission included	●	○	◐	●
Fixed-price MVP option	●	◐	○	○
Post-launch on-call	●	○	◐	●