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Software development · Mexico and United States

We design, build, publish and maintain software for real operations: sales, inventory, invoicing, logistics and customer service.

iOS · Android
Native and cross-platform apps
Web
Dashboards and business systems
MX · US
Operating in both markets
ES · EN
Bilingual team and documentation

Services

What we build

Every project includes source code, technical documentation and hand-off to the client's team.

Process

How we work

  1. 1

    Discovery

    Review of processes, users and existing systems. Output: scope, estimate and delivery plan.

  2. 2

    Design

    User flows and a clickable prototype validated with real users before any code is written.

  3. 3

    Development

    Two-week sprints with a working demo and staging access at every delivery.

  4. 4

    Launch and support

    Deployment, store publishing, training and maintenance under a service agreement.

Case studies

Delivered projects

Distribution · Mexico

Route sales app with inventory system

Problem
Orders captured on paper and reconciled at end of day; recurring inventory discrepancies.
Solution
Android app for sales reps with offline mode, multi-warehouse inventory dashboard and CFDI 4.0 invoicing.

Stack

  • Kotlin
  • Laravel
  • MySQL
  • CFDI PAC

Field services · United States

Work orders and customer portal

Problem
Field technicians coordinated by phone and spreadsheets with no per-customer history.
Solution
iOS/Android app for technicians with photo evidence and signatures, customer web portal and Stripe billing.

Stack

  • React Native
  • Node.js
  • PostgreSQL
  • Stripe

Retail · Mexico and United States

Bilingual loyalty program

Problem
Physical punch cards with no repeat-purchase data or segmentation.
Solution
ES/EN loyalty app with points wallet, coupons and an admin dashboard with per-store reports.

Stack

  • Flutter
  • Firebase
  • Cloud Functions

FAQ

Before you start

How much does a custom mobile app cost?

It depends on scope: number of screens, integrations, admin dashboard and platforms (iOS, Android or both). That is why we start with a discovery that delivers scope, cost estimate and delivery plan before committing to development.

How long does it take to build an app or business system?

A first working version is usually delivered in 8 to 16 weeks, in two-week sprints with a demo and staging environment at every delivery. The exact timeline is defined during discovery.

Does my company own the source code?

Yes. At the end of each stage we hand over source code, technical documentation and access to repositories, servers and store accounts in the client's name.

Do you work with companies in the United States and Mexico?

Yes. We serve clients in both countries with a bilingual team and documentation, and local integrations such as Stripe or QuickBooks payments in the U.S. and CFDI 4.0 e-invoicing in Mexico.

Do you publish the app on the App Store and Google Play?

Yes. We prepare the listing, privacy labels, in-app account deletion and the support and privacy pages Apple and Google require, and follow the review through to approval.

Do you provide support after launch?

Yes, under a written service level agreement covering iOS and Android updates, error monitoring, security patches and an end-user help desk.

Contact

Tell us about the project

We reply with technical questions or a discovery proposal. If you already use one of our apps and need help, use the Support page.

Direct contact

info@x1corp.net

Miami, Florida, USA

Go to Support