Yes. EduSum runs in a web browser, so a current browser and an internet connection are all you need — it works on a desktop, a laptop, a tablet, or a phone, and there is no app to download or install from any store.
Because the platform is reached through the browser rather than a native app, the device is largely your choice: you sign in at the site and practice the same way whichever screen you are on. What varies is not whether a device works but how comfortable a given sitting is on it, and that is worth a moment’s thought before you start a timed run on a small screen.
Choosing a Device for an IT Exam Sitting
The practical consideration is legibility under time pressure, not compatibility. Some items are text-heavy: picture a security question that prints a short web-application firewall rule set — several ordered rules, each with a match condition and an action — and asks why a request that should have been blocked was allowed through, when an earlier broad allow rule shadows the specific deny below it. Reading an ordered rule list closely, against a clock, is simply easier on a larger screen than on a phone held in one hand. Nothing stops you sitting it on a phone, and a quick mini session on a commute is a perfectly good use of one; for a full-length sitting you want to rehearse under real conditions, a tablet or a computer usually serves the reading better.
So use whatever device suits the moment: EduSum is browser-based and app-free across desktop, laptop, tablet, and phone, with the only real trade-off being how much dense IT exam content you want to read on a smaller screen.