Custom web applications are mostly based on template design and fully developed back-end side using PHP. Over usual workarounds, developing APIs in PHP for custom features and also maintaining the best user-friendly experience by pulling data from the background (AJAX). For advanced features using libraries (images processing, PDF processing and showing as images, EXCEL exports to databases of applications...)
Inside every project there is database management, a content management system (CMS), a user-friendly interface so every feature runs smoothly and with 99.99% covering mistakes and possible errors. In addition, using modern libraries for better experience and Bootstrap as most used design framework. Also, there is the option to optimize performance only with server side processing of data.
Based on React Native (Android and iOS) applications are developed in a way that includes the possibility to upgrade applications later. When it is about design, there is the option to use native code to implement features if it is not already implemented by the React Native community. For design, there is the option to use Figma projects as guidelines.
The back-end implies that it has API (s) so that the application can communicate with the server / database. In this case, it is only possible to create a mobile application for existing web pages (web stores, data management systems, custom admin-client applications, etc.) in PHP / Node.js.
Whenever there is need for some automation or information scraping for sites, there is an option of "scripting". Scripts are custom-made features that will do automation of processes for applications, and it can include data sorting, pulling data from servers, making statistical diagrams and fetching data from other sites (residential buildings ads, car ads, weather info...)
Security is everything that is needed to protect unwanted acts from another side of the software. By this that can be hacking software, humans act to steal information/s and do damage to software. Besides that, pentesting is always a good choice if you want to prevent any possible problem that can happen. Security things can include forensics of devices / software and investigating what happened to them.
The first step, if it is about a web application, then data will be backed up for safety reasons, and then the next step will be searching for bugs or viruses. In other cases, there is the option to pen test web application and physical devices with Kali operation system. With 5+ years of networking experience, systems that include alarms and security cameras can be pen-tested and adjusted to be as safe as they can be. Prevention is always a priority.