Hey, I'm Rayy. I build native Android utilities under RayyLabs using Kotlin and Jetpack Compose. I focus on lightweight, offline-first tools that do their job cleanly without tracking you or cluttering your device.
A collection of standalone utilities and tools I've built, published on Google Play and open-sourced on GitHub.
Shows live upload and download speeds right in your Android status bar while keeping track of your daily data consumption. Also includes a local VPN loopback firewall that lets you block background network access on a per-app basis without routing your traffic through remote servers.
A system-wide text expansion tool for Android. Type custom abbreviations in any text box to replace them with saved phrases, perform inline math calculations, look up exchange rates, or generate quick message drafts via Google's Gemini API.
A home screen widget that bundles your incoming notifications into clean, minimal capsule badges. Built to keep your home screen organized with custom icon packs, dynamic Material You color matching, and filters to silence noisy apps.
A screenshot mockup tool for developers and designers to showcase their apps. Wrap raw screenshots into 2D and 3D device frames (smartphones, tablets, and smartwatches), customize backdrop gradients and lighting, and export high-res images directly on-device.
Completed programs through Google Career Certificates and Coursera covering generative AI workflows, prompt design, and AI-assisted coding.
A 7-course specialization focused on practical applications of generative AI: structured prompt design, AI-assisted development workflows, data analysis, and building intelligent utilities.
Covers core generative AI concepts, structured prompt techniques, responsible AI guidelines, and integrating AI tools into daily engineering workflows.
Have a question about one of my apps, an idea to discuss, or looking for an Android developer? Drop me a line.
Reach out anytime via email, Telegram, or phone.
