# Mobile & Web App Development

> Mobile and web app development: one app for iOS and Android, client portals, marketplaces, CRM and ERP. React Native and Next.js. From $2,500.

- URL: https://veilvex.com/services/apps/
- Page: English (en-US) · RU https://veilvex.com/ru/services/apps/ · AZ https://veilvex.com/az/services/apps/ · DE https://veilvex.com/de/services/apps/
- Veilvex: Veilvex (veilvex.com) is a team of specialists in GEO (visibility in AI answers), SEO, advertising, website and app development and AI-powered business automation; we work remotely with businesses in any country.

App development covers mobile apps for iOS and Android from one codebase, web platforms, marketplaces, client portals and internal CRM or ERP systems, with roles, permissions and real-time updates. It suits businesses whose customers or staff need more than a website. Apps start at $2,500; begin with a 15-minute brief on WhatsApp.

- **Price**: from $2,500 — exact estimate after a 15-minute brief

## Which app you need

- Type: Mobile app for iOS and Android; What it does: One React Native codebase for both stores: bookings, catalogs, orders, loyalty, notifications; Typical use: A client app for a service business or a shop
- Type: Web platform or marketplace; What it does: Two or more sides — clients and contractors, buyers and sellers — with orders, bids and statuses; Typical use: A platform that connects customers and suppliers
- Type: Client portal; What it does: A personal account where customers see their orders, documents, payments and status; Typical use: Self-service for regular or B2B customers
- Type: CRM or ERP for your team; What it does: An internal tool for leads, tasks, stock and documents, with roles and permissions for staff; Typical use: Replacing a pile of spreadsheets with one system

Not sure you need an app at all? Often a website or a bot solves the task faster and for less money. If that is your case, we say so in the brief.

## What development includes

- Product logic first: roles, user flows and screens are agreed before any code.
- Interface design that works the same way on phones and desktops.
- Mobile apps in React Native: one codebase for iOS and Android.
- Web apps and admin panels in Next.js.
- The server side and the database — for example NestJS and PostgreSQL, as in the construction marketplace from our cases.
- Roles, statuses and permissions; real-time updates where users need them.
- Integrations with payments, a CRM, messengers, maps and notifications — as the task requires.
- Publishing to the App Store and Google Play under your own developer accounts.

## How the work goes

1. **15-minute brief** — Goal, users, key features and budget — and a first estimate.
2. **Specification and prototype** — Roles, screens and user flows as a clickable prototype, agreed before development.
3. **Development in stages** — Every stage ends with a working build you can try yourself.
4. **Testing and release** — We test on real devices and publish to the stores or to your server.
5. **Handover and support** — Source code, access and documentation once the stage is paid; support on demand.

## What we need from you

- Who the users are and what each of them should be able to do.
- Examples of apps you like, if you have any.
- Apple and Google developer accounts in your name — we help you set them up.
- One contact person who tries the builds and signs off stages.

## How much an app costs

Apps start at $2,500. The total depends on the number of roles and screens, the platforms (mobile, web or both), the integrations and the server side. We split the work into stages: you pay an advance only for the current stage and the balance after acceptance. Apple and Google charge their own developer account fees. We give an exact estimate after a 15-minute brief.

## Cases for this service (Projects by our delivery team)

- [Construction marketplace](https://veilvex.com/cases/mybuild/) — Two-sided platform: orders, bids and acceptance of work in real time

## What we don’t promise

- A place in the App Store or Google Play top charts: store rankings depend on the stores’ algorithms, reviews and competitors.
- Store approval on a set date: Apple and Google review every release themselves.
- A fixed price before the scope is clear: the estimate follows the specification, not a guess.

## Frequently asked questions

- Do you promise first place in the App Store or Google Play?
  No. We build and publish the app by the stores’ rules, but store rankings depend on their algorithms, reviews and competitors.

- How much does an app cost?
  From $2,500. The exact price depends on roles, screens, platforms and integrations; we name it after a 15-minute brief.

- Do I need two separate apps for iOS and Android?
  Usually not. We build in React Native: one codebase gives you an app for both iOS and Android, which saves time and budget.

- Can you build a platform with several roles, like a marketplace?
  Yes. Our delivery team built a two-sided construction marketplace: clients post orders, contractors respond and work is accepted inside the system, with statuses updated in real time.

- Who owns the code and the store accounts?
  You do. The rights to the code made for you pass to you once the stage is paid, together with the source code; the developer accounts are registered in your name.

- Is an app really what I need?
  Not always. If customers only need to book, order or ask a question, a website or a bot is often enough — and we will tell you so in the brief.

---

WhatsApp +994 55 993 993 8 — https://wa.me/994559939938 · Telegram @veilvex_manager — https://t.me/veilvex_manager · Email info@veilvex.com — mailto:info@veilvex.com