IELTS vs Duolingo English Test: Which One Should You Take in 2025?

When applying to study abroad, most universities require proof of English proficiency. Two popular options are the IELTS and the Duolingo English Test (DET). Here’s a quick guide to help you decide which test is right for you.

Overview:

  • IELTS (International English Language Testing System): Traditional, paper/computer-based test accepted globally.

  • Duolingo English Test: Online, faster, and affordable alternative gaining popularity among institutions.

Comparison Table:

Feature IELTS Duolingo
Format Reading, Writing, Listening, Speaking Integrated test with video/audio responses
Duration ~2 hours 45 minutes 1 hour
Price $180–$250 USD $59 USD
Mode In-person / Computer-based Fully online
Result Time 3–5 days 48 hours
Accepted By 11,000+ institutions worldwide 4,000+ institutions and growing

Choose IELTS if:

  • You’re applying to UK, Australia, or Canada where IELTS is a common requirement.

  • You prefer a traditional testing environment.

Choose Duolingo if:

  • You need a fast, low-cost alternative.

  • You’re applying to schools that explicitly accept DET.

Final Tip: Always check your target university’s requirements before booking your test.