Software that quietly does its job.

Software products built by TechRex.

TechRex is an independent software product company designing and maintaining a small, deliberate catalogue of web applications, Android applications and cross-platform tools for everyday work and everyday play. Rather than chasing a long feature list, we focus on a handful of practical software products that people can trust to keep working — on slow networks, on older devices, and years after their first release.

Web applications and productivity software

Our web applications are built with modern React and a strict focus on performance. Pages render quickly, interactions feel immediate, and the interface stays out of the way of the work. The TechRex Invoice Generator is a good example of our approach to productivity software: a browser-based invoice tool that lets freelancers and small businesses draft, preview and download a clean invoice PDF in a couple of minutes, without creating an account, without uploading customer details to a server, and without paying a monthly subscription just to send a bill.

Finance software and business tools

On the business side, TechRex builds finance software for teams that live between spreadsheets and the field. FinTrackX brings customer records, loan books, routes, daily collections and field-line management into a single connected workspace so a small lending team can plan the day, run their route, close the day and reconcile the numbers without stitching together three different tools. It is designed for real operational conditions — patchy connectivity, quick data entry, and clear day-end reconciliation — rather than for a slide deck.

Sports applications and offline-first Android apps

Our sports and utility work leans on mobile app development for Android. Cricket Companion is an offline-first cricket scoring app for local matches, gully games and community tournaments — score a full innings without a network, then share a live scorecard, ball-by-ball commentary and result through a public match link when connectivity is available. Rummy Score Card is a lightweight Android utility for tracking 101, 201 pool and least-count rummy across friends and family games, again designed to work entirely offline. Neither app is a real-money or gambling product; they exist purely to make casual, in-person games easier to run.

Privacy-first, offline-first, cross-platform by default

A shared philosophy runs through everything we ship. TechRex products are privacy-first: they collect only what they genuinely need, keep it briefly, and never sell it. They are offline-first where the use case demands it, so a weak signal never blocks the moment you actually need the app. And they are cross-platform in the places it matters — the web tools work in any modern browser on desktop or phone, and the Android apps are engineered to feel responsive even on older hardware. Together, this small catalogue of web and mobile software is what TechRex means by practical products: fewer of them, built carefully, maintained honestly, and shaped by feedback from the people who actually use them.