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Mobile App Development in Charlotte, NC

Charlotte is the southeast's banking capital — Bank of America and Truist headquartered here, plus a fast-growing fintech and supplier ecosystem in Uptown and South End selling into the big banks. Every mobile app in this market has to survive two reviews: an internal audit and a customer's vendor-risk assessment. Generic SaaS mobile templates fail both routinely.

The problem with off-the-shelf mobile in Charlotte

Mobile vendors selling into Charlotte have to clear bank-grade security review. Generic shops do not understand the vendor-risk game, ship without audit trails, and lose the deal at procurement. We build for the regulated environment from day one.

A custom mobile build puts the data model, the UI, and the platform layer around how you actually operate. No vendor SDK tax. No per-seat ratchet. For Charlotte operators specifically, that means mobile shaped for banking-adjacent compliance-aware mobile — not a generic template.

What we ship for Charlotte companies

Vendor-risk-ready architecture

Data-flow diagrams, access model, encryption-at-rest documentation, and audit logs that survive a BoA or Truist vendor-risk review.

Customer-record audit trails on mobile

User, action, before/after on every record. Drops directly into SOC 2 CC6.1 and CC7.2 evidence packs.

Stripe + bank-grade billing flows in-app

Subscription and licensing state tied to entitlement, with reconciliation outputs your customer's audit team can pull.

Fintech-vendor mobile modules

Pipeline, deal IC, security-review state, and contract redline tracking — on mobile, for vendors selling into a regulated bank.

Tech stack

React Native + Expo
Swift / SwiftUI (iOS)
Kotlin / Jetpack Compose
TypeScript
Node API + PostgreSQL
Stripe + Apple/Google Pay
Push (APNs / FCM)
Offline-first sync
App Store + Play submission

Hosted on Vercel, AWS, or your own infrastructure. PostgreSQL is the source of truth; the mobile client defers to it.

Reference builds

Charlotte-relevant reference work includes J5 Sales OS (sales operations whose mobile surface lets AEs work pipeline from the road), ProtectWithBri (client-facing portal handling sensitive communications), and contractor-grade mobile patterns we ship into other regulated-adjacent markets. Same audit-trail and access-model discipline shows up across the portfolio because the same shop that runs the pen test writes the mobile code.

Reference work: J5 Sales OS, Northcrest Fence, and Bridgepointe Painting.

How we work remote from Georgia

QUANT LAB USA is founder-led from Macon, Georgia. William Beltz runs every engagement from kickoff through handoff — no agency middleman, no offshore handoff at the framework boundary. Discovery happens over a structured video session; weekly demos run on the same cadence; staging is live from week two so you can put a real mobile build in your team's hands before final delivery.

For Charlotte clients, that means full Eastern-time overlap, fixed-scope contracting against milestones, and on-site work when the engagement warrants it. Book a scope call to walk through your workflow and get a written estimate.

Pricing for Charlotte mobile builds

Charlotte mobile engagements typically scope between $50,000 and $130,000 for a production-grade MVP with bank-grade security documentation included.

We quote fixed-fee scope after a 30-minute discovery call. Engagements include the mobile client, the backend, the API surface, Stripe and payments wiring as scoped, and App Store and Play Console submission. Source-code handoff is included at delivery — no platform fees, no per-seat charges, no vendor lock-in. See our parent mobile service page for the broader engagement model.

What you get

  • Full source code repository (yours, no lock-in)
  • iOS and Android builds submitted under your developer accounts
  • Backend API + PostgreSQL database
  • Stripe / Apple Pay / Google Pay wiring as scoped
  • Push notification setup (APNs + FCM)
  • 30-day post-launch support included

Charlotte mobile FAQ

Will the app survive a BoA or Truist vendor-risk review?

Yes — we ship the data-flow, access-model, and encryption documentation procurement teams actually ask for, and produce a pen test report against the deployed system on request.

Do you understand the bank security-questionnaire game?

Yes — same shop ships the mobile app and runs the pen test. Threat modeling is in the SDLC, not added at the end.

Are you available for in-person Charlotte meetings?

Yes — short drive up I-85 from the HQ. Kickoffs and major reviews on-site when scope warrants it.

Can you handle a SOC 2 Type II audit on a mobile codebase?

Yes. Audit logging, access scoping, and evidence-ready documentation are in the SDLC from day one.

Do you support enterprise SSO in the mobile client?

Yes — SAML, OIDC, and fine-grained RBAC are standard.

Who owns the source code?

You do. Full repository handoff at delivery.

Ship a real mobile app in Charlotte.

Call William Beltz directly at (770) 652-1282 or book a 20-minute scope call to walk through your mobile build. Founder-led from quote to handoff.