GreyTech Systems Inc

Where Java is more than just a beverage


Website Development

We design and develop website that are responsive, mobile-first, dynamic, user-friendly and extremely time-critical.


Mobile Applications

Up-to-speed Native and Hybrid Android & iOS applications and mobile web applications.


Graphics and Animations

We produce 2D and 3D graphics and moving images or “animation.” Our team is at hand to design, model and bring to life innovative ideas


Network solutions

Have your home/office intranet set up and configured for you.

A critical step in mobile app testing is to ensure that the final implementation matches the user experience created by the app design team. Visuals, workflow, and interactivity of your app are what will give your end users first-hand impression of your app. Make sure that your app employs consistent fonts, style treatments, color scheme, padding between data, icon design, and navigation. Ensuring that your app matches the original design guidelines will have a direct impact on its user adoption!

The accuracy of your mobile app functionality is critical to its success. It’s difficult to predict every end user’s behavior and usage scenario. The functionality of your app should be tested by as many users to cover as many potential testing conditions as possible. You might be surprised to catch bugs when two different users test the same feature but get varied outcomes. For example, both users can fill out the same form, but they both might enter different data—which could lead to discovering a defect.

Security is of utmost concern for enterprise mobile apps. Any potential vulnerability can lead to a hack. If your app requires users to log in, these log in sessions should be tracked on the device and the backend. User sessions should be terminated by the system when a user has remained idle for an extended time (typically ten mins or less on a mobile app). If your app stores user credentials on the device to make it convenient for them to re-login, then you must ensure using a trusted service.

Testing is imperative to an app’s future success; it encompasses a substantial section of our overall mobile app development process. Having a comprehensive mobile testing strategy is a must for delivering a quality mobile app. During the testing phase, there are many ways for distributing your app development builds to the testers. The most common approach with iOS apps is using the Testflight and for Android apps via email or Over The Air (OTA) installs.

Need a Mobile App?

Success within the competitive landscape of the growth projections of mobile apps can become a reality for your company—but only if supported by a precisely cultivated mobile app development process...

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Service Process

Effective and Professional way to get your needs met.


Goal identification

We work with the client to determine what goals the service we offer needs to fulfill


Scope definition

Once we know the goals, we define the features required to fulfill the goals, and the timeline for building those out.


Content creation

Now that we have a bigger picture in mind, we can start creating content, always keeping search engine optimization (SEO) in mind for webite development


Visual elements

We work on the visual brand. Depending on the client, this may already be well-defined, but you might also be defining the visual style from the ground up. Tools like style tiles, moodboards, and element collages can help with this process.



We use a variety of devices with automated site crawlers to identify everything from user experience issues to simple broken links and possible bugs.



We plan and execute your launch! This includes planning both launch timing and communication strategies

Our Feedback

We've got the magic touch, far and wide.

Happy Clients


Websites Developed


Mobile Apps Developed


Systems Built


Latest from Our Blog


Feb 08, 2021 ( Manuel Grey )

Java in Artificial Intelligence

Why Use Java for AI? And more broadly, why should you use JVM languagues like Java, Scala, Clojure or Kotlin to build AI and machine-learning solutions?

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Feb 09, 2021 ( Manuel Grey )

Why Everyone Should Be Using Signal Instead of WhatsApp

The Signal protocol underpins WhatsApp encryption, but Facebook ubiquitous messaging service does not hold a candle to Signal itself

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Feb 09, 2021 ( Manuel Grey )

Has Safaricom allowed the National Intelligence Service to forward your calls illegally?

Currently most people are trying to figure out how they can protect their data. While we’re trying to protect our data and ensure that companies are not violating data privacy laws but this time the victim is Safaricom.

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What Clients Say

Here are testimonials from some of our clients..



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