You've decided to move forward. A university abroad. A visa application. A nursing registration. A better job overseas. And almost immediately, you hit the first wall — not the exam itself, but the question before the exam: Which test do I even take?
It's a fair thing to be confused about. IELTS, PTE Academic, OET, Duolingo — they all claim to measure English. They all lead to the same destination on paper. But they are not interchangeable. Choosing the wrong one can cost you months of preparation, ₹15,000 to ₹40,000 in exam fees, and in some cases, a rejected visa application.
First, a Simple Rule
Before any comparison, one question narrows your decision faster than anything else: Are you a healthcare professional?
If yes — doctor, nurse, dentist, pharmacist, physiotherapist, or allied health — the answer is almost certainly OET. The other three tests weren't built for you.
If not, read on.
What Are These Four Tests, Actually?
IELTS — The International English Language Testing System
IELTS is co-owned by the British Council, IDP Education, and Cambridge Assessment English. It is the most widely accepted English test in the world — recognised by over 11,000 organisations across 140+ countries. It comes in two versions: Academic (for university and professional registration) and General Training (for skilled migration and work permits). Scores are on a 0–9 band scale. The Speaking test is a live, face-to-face interview with a certified examiner.
PTE Academic — Pearson Test of English
PTE Academic is fully computer-based, from the first question to the final result. Every component — including Speaking — is scored by AI. Results are typically available within two business days. It is accepted for Australian and UK immigration and by thousands of universities worldwide.
OET — The Occupational English Test
OET was built specifically for healthcare professionals. Every task reflects a real clinical situation — patient consultations, referral letters, discharge summaries. It covers 12 healthcare professions, each with profession-specific Writing and Speaking modules. Most regulatory bodies worldwide require a minimum of Grade B (350) in each section.
Duolingo English Test (DET)
The entire test is taken at home, lasts about an hour, costs approximately ₹5,500–6,000, and delivers results within 48 hours. It is accepted by over 5,000 universities worldwide. However — Duolingo is not accepted for immigration purposes in the UK, Canada, or Australia. If you need an English test for a visa application, Duolingo is not the right choice.
A Side-by-Side Comparison
| IELTS | PTE | OET | Duolingo | |
|---|---|---|---|---|
| Format | Computer (Speaking: face-to-face) | Fully computer-based | Computer / at-home | Online, at home |
| Duration | ~2 hr 45 min | ~2 hours | ~3 hours | ~1 hour |
| Scoring | 0–9 bands | 10–90 | 0–500 / Grade E–A | 10–160 |
| Results | 3–5 days | ~2 business days | ~16 days | ~48 hours |
| Fee (India) | ₹19,000 | ₹18,900 | ~₹32,000–38,000 | ~₹6,000 |
| Visa accepted | UK, Australia, Canada, NZ | UK, Australia, NZ | Healthcare routes | ❌ Not for visas |
| Score validity | 2 years | 2 years | 2 years | 2 years |
Who Should Choose Each Test
- Are applying for any UK, Australian, or Canadian visa
- Need IRCC Canada (requires IELTS General Training)
- Want a human examiner for Speaking
- Are applying across multiple countries or institutions
- Need results in 2 business days
- Are applying for Australian immigration
- Prefer AI-scored, recorded Speaking
- Are tech-comfortable and deadline-driven
- Are a nurse, doctor, dentist, or pharmacist
- Are seeking NMC, AHPRA, or NMBNZ registration
- Work in clinical English daily
- Find clinical context easier than academic essays
- Are applying to US or Canadian universities
- Do NOT need a visa test (Duolingo is visa-rejected)
- Have a tight budget or flexible timeline
- Want to take multiple affordable attempts
Visa & Immigration Acceptance at a Glance
| Country / Route | IELTS | PTE | OET | Duolingo |
|---|---|---|---|---|
| UK Student Visa (UKVI) | ✅ Yes | ✅ Yes | ✅ Healthcare only | ❌ No |
| UK Skilled Worker Visa | ✅ Yes | ✅ Yes | ✅ Healthcare only | ❌ No |
| Australia — Student Visa | ✅ Yes | ✅ Yes | ✅ Healthcare only | ❌ No |
| Australia — Skilled Migration | ✅ Yes | ✅ Yes | ✅ Yes (Aug 2025+) | ❌ No |
| Canada — Express Entry (IRCC) | ✅ Yes (GT only) | ❌ Not accepted | ❌ No | ❌ No |
| Family / Spouse Visa (UK) | ✅ Yes | ✅ Yes | ❌ No | ❌ No |
Approximate Score Equivalency
| CEFR Level | IELTS Band | PTE Academic | Duolingo DET | OET Grade |
|---|---|---|---|---|
| B2 Upper Intermediate | 5.5–6.0 | 42–50 | 95–109 | C+ |
| C1 Advanced | 6.5–7.0 | 58–65 | 115–129 | B |
| C1+ | 7.5 | 73–79 | 130–144 | B+ |
| C2 Mastery | 8.0–9.0 | 80–90 | 145–160 | A |
Approximate equivalencies based on concordance research from ETS, Pearson, and Cambridge Assessment English. Always verify requirements directly with your target institution or regulatory body.
The One Mistake Most People Make
They choose the test that seems easiest, not the test that's right for their goal. Duolingo looks attractive because it's cheap and quick — but if you need a UK student visa, you'll still need to take IELTS or PTE separately, which means paying twice and preparing twice.
The test that gets you where you're going in one attempt is always the cheaper choice — regardless of the sticker price. In short: Healthcare professional? → OET. Visa application? → IELTS or PTE. Canada for immigration? → IELTS General Training. University admissions only, budget matters? → Duolingo (verify first). Everything else? → IELTS.
All exam fees, formats, and acceptance policies are accurate as of May 2026. Always verify current requirements directly with the relevant test authority, university, or visa office before registering.
