Application development

Launch your next big idea on any platform. Our engineers have the tools to build, release, and scale your concept with our full stack, native mobile and cross-platform expertise.

The right technology for the right purpose

With our diverse expertise, we’ll find the right combination of software, tools, and features to match your vision. Our mobile engineers have been honing their skills since the market began, there are no limits to your development opportunities. We use Objective-C/Swift and Java/Kotin languages giving you the ability to build a product on the iPhone/iPad market, Android market, or both. 

In addition to your product development, we can assist you with the technical aspects of bringing your app to market on its distribution channels. Focus on your customer experience while we ensure a seamless launch process, avoiding any technical spec issues in the app store. 

Full stack experts

Whether you have a website that needs a new front-end or a web application that needs an entirely new stack, we’ve got you covered.


  • React (JavaScript)
  • Node (JavaScript)
  • Angular/Typescript (JavaScript)
  • .NET/Razor/Blazor/VB.Net (C#)
  • PHP
  • Ruby on Rails
  • Python


  • iOS native (Objective-C/Swift/SwiftUI)
  • Android native (Java/Kotlin)
  • Cross platform – KMM (Kotlin Multiplatform Mobile)
  • Cross platform – Ionic Capacitor (React)
  • Cross platform – React Native (React)
  • Cross platform – Flutter (Dart)
  • Android OS Internals/AOSP – (Java/Kotlin)


  • iSQLite
  • Realm
  • Core Data
  • NoSQL/Firebase
  • MySQ
  • MongoDB
  • PostgreSQL
  • SQL Server
  • Solr
  • MariaDB

The anatomy of a sprint

We believe in collaboration at 303 software. Throughout a project, you can expect to become a part of our team, helping guide your product to a successful launch. We have developed a customized approach that utilizes lean and agile principles that best suits our clients’ needs.

Sprint planning

Review story assignments
UI/UX refinements


Write code
Review code
Manual test code
Automatic test code

Sprint Demo

Showcase progress
Record realtime feedback

Sprint retrospective

Incorporate feedback
Adjust stories
Just in time design
Update workflows