Custom software

Custom mobile app development

We deliver custom mobile app development for customers and field teams: iOS and Android apps built with Ionic and Progressive Web Apps (PWA). With offline mode, push notifications and full synchronisation with your business systems.

Who a custom mobile app is for

Field employees – technicians, drivers, sales reps, site managers – often work with paper forms, photos sent over messaging apps and phone calls to the office. Information arrives late, and retyping it into the system takes time and causes errors.

A mobile app for field teams lets them capture data on the spot, even without signal, and sends it automatically to your business systems. Customers, in turn, expect to place orders, check job status and contact the company from their phone.

We design mobile apps both as an extension of existing business systems and as standalone products for customers.

Typical use cases

  • Reports, checklists and photos from field work.
  • Jobs and schedules for technicians and drivers.
  • Sales apps for field sales reps.
  • Customer apps: orders, statuses and notifications.
  • Offline work with later synchronisation.
Scope

PWA or Ionic app – what we build

We choose the technology to fit your needs: a PWA runs in the browser without an app store install, while an Ionic app is published in the App Store and Google Play and uses device features.

iOS and Android apps (Ionic)

One codebase for both platforms, app store publishing and access to the camera, GPS, notifications and other device features.

Progressive Web Apps

Apps installed from the browser, without app stores – ideal for internal teams and fast rollouts.

Offline mode

Working without signal, with local data storage and automatic synchronisation once the connection is back.

System integrations

Synchronisation with ERP, CRM, WMS and custom applications via APIs.

Push notifications

Notifications about new jobs, status changes and important events.

AI features

Reading documents from photos, dictating reports, suggestions and an AI assistant in the app.

Process

How a mobile app is built

We design the app together with its future users, because they decide whether it will be used every day.

  1. Free consultation

    We agree goals, users, platforms and the systems the app should work with.

  2. Analysis and technology choice

    We refine requirements and recommend a PWA or an Ionic app, with a quote for each stage.

  3. UX/UI design

    We design screens for one-handed use, in the field and with weak signal.

  4. Development and testing

    We develop in sprints and test the app on target devices.

  5. Publishing and growth

    We publish the app in the stores or as a PWA, train users and develop further features.

Technologies

Mobile app technologies

We build mobile apps with the Ionic Framework using Angular or React, and as Progressive Web Apps. Backends and APIs are built in Python, Java, Node.js or PHP, with PostgreSQL, MariaDB or MS SQL Server databases.

  • Ionic Framework
  • PWA
  • Angular
  • React
  • TypeScript
  • Node.js
  • Python
  • Java
  • PHP
  • PostgreSQL
  • Redis
Example use case

An app for an installation company’s field technicians

Technicians at an installation company receive jobs by phone and fill in a paper report after each visit, which reaches the office days later.

The mobile app shows technicians their jobs for the day, guides them through a report with a checklist, photos and the customer’s signature, and works without signal. After synchronisation the report lands in the company system, the customer receives it by email and the office can invoice straight away.

An illustrative scenario showing the typical course and scope of such a project.

FAQ

Frequently asked questions

Should we choose a PWA or a native app?

A PWA works well for internal apps and where fast rollout without app stores matters. An Ionic app is better when you need a presence in the App Store and Google Play or broader access to device features.

Will the app work without internet?

Yes. We design offline mode with local data storage and automatic synchronisation once the connection is restored.

Does one app work on both iOS and Android?

Yes. With the Ionic Framework we build one codebase for both platforms, which shortens development time and reduces cost.

Can the app be connected to our system?

Yes. We integrate mobile apps with ERP, CRM, WMS and custom applications via APIs.

Do you help with app store publishing?

Yes. We prepare the app for publishing in the App Store and Google Play and support the review process.

Why insideWeb

Experience since 2009, now powered by AI

  • Since 2009

    17 years of building enterprise-class web applications, custom business systems and mobile apps.

  • Industry know-how

    Many projects for automotive, logistics, healthcare, food service and catering, construction and finance.

  • From idea to maintenance

    Consulting, design, development, integrations, rollout, training and ongoing growth in one place.

  • Data security

    Solutions designed in line with GDPR and the EU AI Act, with access control and transparent costs.