So you’ve found your dream program, and now there’s a gatekeeper standing in front of it: an English test. IELTS, TOEFL, Duolingo — three names, three different exams, and a lot of confused students paying for the wrong one. Here’s the thing nobody tells you upfront: there is no “best” test. There’s only the test your university accepts, that plays to your strengths, and that you can actually schedule and afford. Let me walk you through how the three really differ, so you book the right one the first time.
First Rule: Your University Decides, Not You
Before comparing anything, check the admission page of every program on your shortlist. Some universities accept all three tests. Some accept IELTS and TOEFL but not Duolingo. A few scholarship programs name the exact test they want. Walking in with a Duolingo score for a university that doesn’t take it is like bringing the wrong currency to a shop — doesn’t matter how much you have. Make a small table: university, tests accepted, minimum score. That table, not the internet’s opinion, drives this decision.
IELTS: The One Everybody Knows
IELTS is the most widely accepted English test on the planet, especially across the UK, Australia, Canada, and Europe. You get four sections — Listening, Reading, Writing, and Speaking — and a score in bands from 0 to 9. Universities typically ask for something in the 6.0 to 7.5 range depending on the program, but your target university’s page is the only number that matters. The speaking test is a real conversation with a human examiner, which many students find either comforting or terrifying, depending on their personality. There’s a paper-based and a computer-based version in many locations. One honest warning: IELTS results are generally valid for two years, so don’t take it so early that it expires before your intake.
TOEFL: The American Favourite
TOEFL iBT is run from the United States and is deeply trusted by American universities, though plenty of institutions worldwide accept it too. It also tests the same four skills, scored out of 120 in total. Its style is more academic — expect university-style lectures and readings — and the speaking section has you talking into a microphone rather than to a person, which some students quietly prefer. Everything happens on a computer at a test centre, or in an approved home edition in some regions. Like IELTS, scores are generally valid for two years. If your shortlist leans heavily American, TOEFL is often the natural fit — but again, check each program, because plenty of US universities happily take IELTS and Duolingo as well.
Duolingo: The New, Cheap, Fast One
The Duolingo English Test is the disruptor. You take it online, from home, in about an hour, and results usually arrive within a couple of days. It costs noticeably less than the other two and its score runs from 10 to 160. Thousands of institutions now accept it, especially in the US and Canada. So why doesn’t everyone just take it? Because acceptance is still patchier. Some top programs, some scholarship bodies, and some visa routes don’t accept it, or accept it for admission but not for every purpose afterwards. It’s a brilliant option when your universities confirm they take it. It’s a costly mistake when they don’t and you assumed.
So Which One Suits You?
Work through it in this order. First, the acceptance table you built — cross out anything your universities won’t take. Second, your strengths: comfortable chatting with an examiner? IELTS speaking may suit you. Prefer talking to a screen and typing fast? TOEFL might feel easier. On a tight budget and tighter deadline, with universities that confirm acceptance? Duolingo earns its place. Third, logistics: test centre distance, available dates, and how the timing fits your application deadlines. And whatever you choose, book early in application season — seats vanish exactly when everyone else panics.
The Mistakes Students Keep Making
Booking a test before checking acceptance — the expensive classic. Aiming for the “average” requirement they read on a forum instead of their own program’s official minimum. Taking the test so late that a disappointing score leaves no time for a retake. And the quiet one: preparing generically for months without ever doing a full timed practice test in the real format. Whichever exam you pick, spend your preparation inside its actual structure — its question types, its timing, its scoring. Students don’t usually fail these tests on English. They fail them on surprises. Remove the surprises, and your English will do the rest.
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