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Web & mobile app development in St. Louis

Apps that get used one-handed, in a truck, on bad signal, by somebody who was never trained on them. Customer portals, ordering, booking, field capture — built to be fast on the cheapest phone your customers own.

Ordering & booking

Order-ahead, catering builders, appointment flows — with real payments and a kitchen or dispatch view that sequences work in the order it can be finished.

Customer portals

Quotes, approvals, documents and status in one place, so your team stops answering the same three questions by email.

Field capture

Photos, measurements and signatures taken on site, queued offline, reconciled when signal returns. Big targets, gloves-on layouts.

Bilingual by design

Copy, formats and currency handled as data, not as a forked codebase — so es-MX and en-US ship on the same release train.

Engineering

Speed is a requirement, not a phase

Web
React, server rendering
Mobile
React Native where it earns it
Offline
Local queue, conflict rules
Payments
Stripe or your processor
Budget
LCP under 2.5s on 4G
Accessibility
44px targets, keyboard paths
Proof

Apps running in production

Food service

Blue Box Pizza

A pizza counter taking orders from four sources at once — phone, walk-in counter and two delivery tablets — while the kitchen could only see tickets in the order they arrived.

Catering

Italian Hoagies

Large catering orders were the shop's highest-value business and its most error-prone: each was priced by hand over the phone and re-entered three times before delivery.

Public sector

Under NDA — State Government

A Mexican state government whose services were nominally digital but still required residents to queue in person at offices that did not share records.

Questions people actually ask

How much does an app cost to build in St. Louis?

A single-purpose web app or customer portal typically runs $18,000–$45,000. Add mobile builds, payments and offline sync and it runs $45,000–$95,000. Scoping is $2,500–$6,000 and produces the fixed quote.

Do we need native iOS and Android apps?

Usually not. A fast installable web app ships sooner, updates without review queues and costs less. Native earns its keep when you need camera, background location, offline-first storage or push at a level the web cannot reach.

Will it work with bad signal in the field?

Yes — field apps queue writes locally and reconcile when the connection returns, so a crew in a basement or a driver between towers keeps working.

Show us the step your customers give up on.

Book a scoping call →