Desktop App Development

To build and upgrade desktop application software of any complexity we provide the cross-platform development framework for multiple platforms or software environments.

Cross-platform applications run across all devices and operating systems. They take less time at a lesser cost and offer a native-like experience. The most common Cross-platform application development frameworks for desktop applications we use are Xamarin, React Native, Cordova, Ionic, and Flutter.

Types of desktop software we develop:

  • Industry-Specific Software
  • Billing and Invoicing Software
  • Inventory Management Software
  • Product Life Cycle Management (PLM) Software
  • CAD Software (Architectural, Engineering, etc)
  • Supervisory Control and Data Acquisition (SCADA) Software
  • Calibration Management Software
  • General Ledger Software
  • Office Software
  • Data Analysis and Visualization Software
  • Notification Software
  • Backup Software
  • Data Loss Prevention Software
  • Time Tracking Software
  • Plugins and Add-Ins
  • Drivers and Utilities

We are utilizing the .NET framework to run desktop application software and web application engineering on Microsoft Windows-based operating systems. This framework provides the user interface, data access, database connectivity, cryptography, web application development, numeric algorithms, and network communications.

Types of development:

  • Standalone
  • Client-Server
  • Cross-platform
  • Native Applications
  • UI Design

Technologies, Frameworks, Databases, and IDE (Integrated Development Environment) we use:
C++, C#, Java, WPF, WinForms, ADO.NET, ASP.NET, MSSQL, WCF, JS, CSS and Visual Studio.

Problem with connecting Microsoft azure vm MSSql from remote location

I was getting connection inside the VM using MSSQL Server, but not from outside. After reading some comments, I found that I needed to add a specific port for outgoing traffic and added that port at Azure firewall:

Here are the steps to check is it working for you or not:

  1. Start Sql Server configuration Manager
  2. Click on your Server name
  3. Click SQL Server network config
  4. Click on protocols
  5. Click on TCP/IP
  6. At the end of tcp/IP range set your port, I set 1433.
  7. Please restart SQL Database.

Now open port at Azure management portal. And connect through SQL tools or other services.

And also remember to open windows firewall.

Mobile App with Printing Solutions

☂ Mobile printing is an essential element for maintaining inventory, door to door sales, creating shipping label or sale receipts. We built custom software for mobile printing, where you can use a mobile device and mobile printer for your requirements.

  • You can use your mobile phone and printer at same Wifi.
  • You can go to remote locations, connect your phone (mobile career network )and print using mobile app with bluetooth printer.
  • We will integrate your print output with zebra printer so you can get the flexibility of mobile printing.
  • You also can use a barcode scanner, if you need to track your process or need to track inventory.

What we can print ?

We will print as your requirements, it might be 1″x1″ label to 10″x5″ receipt


HappNow is a geographical pre-set mobile App aimed at informing and notifying the users of the happening around their current and pre-set location(s). The user chooses three (3) pre-set locations (zip codes) to be informed of the happenings around those locations. Users of HappNow mobile App are the ones to type and send information/notifications, and all users of the App within the pre-set location get the message in form of pop-up notifications. The users of HappNow don’t need to be a friend or follow somebody to get the notifications. The notifications are location based, once a user download and pre-set its location. Such information may include but not excluded to: events happening in the area, fire outbreaks, traffic, accident, armed robbery attacks, gang shootouts or an active shooter in progress.

HappNow installation:

Please install the app first,

If your app crash or having issue, please got to settings>App>Happnow>Permittion> turn on Location & camera.


Please read our : Privacy Policy.

Beta release link :

This software build for Wilenga Solutions by Gulf State Software LLC with Inventus.

APK File

Keywords: local alert, location alert, get local alert, get location alert, alert app, android app for location.

Oil & Gas Software Development

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We build customize software for oil & gas industries. Most of our Oil and Gas software build in Microsoft based technology. Type of development we do :


  • Web based development
  • Desktop Development
  • Mobile App Development
  • Database Development

We provide project based development, continues development and maintenance for Oil & Gas industries. Please contact us for estimate your project cost.

PH 832 966 0871

Gulf State Software
720 Rusk st ,1st floor houston tx 77099

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