Describe a program or app on your computer or phone: IELTS cue card with sample answer

I would like to talk about an app called Obsidian, which has become an indispensable tool in my daily life. It is essentially a note-taking and knowledge-management application that functions as a personal digital brain. I use it almost religiously every single day, often starting my morning by drafting a to-do list and ending my evening by jotting down reflections on the books I have read. I access it primarily on my laptop, but I also keep the mobile version synced for whenever inspiration strikes while I am commuting. I stumbled upon this program about two years ago while I was spiralling down a YouTube rabbit hole, searching for ways to improve my productivity. A tech blogger described how it used a method called 'linked thinking', where you connect notes via hyperlinks rather than folders. That concept really resonated with me because it felt more like how a human brain actually operates. I decided to install it that very afternoon, and after a short learning curve, it became the backbone of my workflow. The reason I find it so incredibly useful is that it allows me to build a complex web of ideas over time. Unlike standard apps that just store information in a linear fashion, Obsidian helps me see patterns in my notes that I would have otherwise missed. It has transformed my writing process from a chaotic scramble into a structured, creative endeavour, making it far easier to retrieve information when I am working on a project or simply trying to remember a specific detail from a lecture months later.