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

If you plan to study abroad, proving your English proficiency is usually one of the most important steps in the application process. For many years, the IELTS (International English Language Testing System) has been one of the most widely accepted English tests for universities around the world. However, in recent years, the Duolingo English Test (DET) has emerged as a popular alternative.

The Duolingo English Test offers a fully online exam that is faster and significantly cheaper than traditional English proficiency tests. Because of these advantages, thousands of universities now accept DET scores for admissions. However, IELTS is still considered the global standard in many countries and is often required for immigration and professional licensing.

This raises an important question for international students: Which test should you take — the Duolingo English Test or IELTS?

In this guide, we will compare the two exams in detail, including format, difficulty, cost, score comparison, university acceptance, and preparation strategies. Understanding the differences will help you choose the test that best fits your academic goals.

Overview of the Duolingo English Test

The Duolingo English Test (DET) is a modern English proficiency exam designed to be accessible, affordable, and convenient for students worldwide. Unlike traditional tests that require a visit to an official test center, the Duolingo English Test can be taken entirely online from home.

The exam typically takes about one hour to complete and uses adaptive technology. This means the difficulty of the questions changes depending on how the test-taker answers previous questions. If a student answers correctly, the next question may become more challenging. If the answer is incorrect, the next question may become easier.

The test evaluates four main language skills:

• Reading
• Listening
• Speaking
• Writing

DET scores range from 10 to 160, and results are usually available within 48 hours. Many universities now accept DET scores as proof of English proficiency for admission.

Overview of IELTS

The IELTS (International English Language Testing System) is one of the most established English proficiency exams in the world. It is widely used for university admission, immigration applications, and professional certification.

IELTS has two main versions:

• IELTS Academic – Required for university admission
• IELTS General Training – Often used for immigration or work purposes

The IELTS Academic test evaluates the same four language skills:

• Listening
• Reading
• Writing
• Speaking

Unlike the Duolingo English Test, IELTS typically requires test-takers to visit an official testing center. The speaking section is conducted as a face-to-face interview with a certified examiner, which many students find helpful because it feels more like a real conversation.

IELTS scores range from 0 to 9, with band scores reported in increments of 0.5.

Test Format Comparison

One of the biggest differences between the Duolingo English Test and IELTS is the exam format.

Duolingo English Test format:

• Fully online
• Adaptive testing system
• Short interactive tasks
• Approximately 1 hour total

IELTS format:

• Usually taken at a test center
• Separate sections for each skill
• Longer exam structure
• Approximately 2 hours and 45 minutes

Because DET combines multiple language skills in short tasks, it tends to feel faster and more dynamic. IELTS, on the other hand, follows a more traditional academic testing structure.

Cost Comparison

The cost of the exam is another major factor for many students.

• Duolingo English Test: about $59
• IELTS: typically $200–$250 depending on the country

This significant price difference makes the Duolingo English Test much more accessible, especially for students who may need to take the exam more than once.

Test Duration and Result Time

Time is also an important consideration when choosing an English test.

Duolingo English Test:

• Test duration: about 1 hour
• Results available in about 48 hours

IELTS:

• Test duration: about 2 hours and 45 minutes
• Results typically available in 3–13 days

The faster results of DET can be especially useful for students facing tight university application deadlines.

Score Comparison: DET vs IELTS

Because the Duolingo English Test and IELTS use completely different scoring systems, universities often publish approximate comparison charts.

This table provides a general comparison, but universities may interpret scores differently. Always check the official requirements for the institutions you are applying to.

University Acceptance

One of the most important differences between the two tests is how widely they are accepted.

IELTS acceptance:

• Accepted by almost all universities worldwide
• Required for many immigration programs
• Recognized by governments and professional organizations

Duolingo English Test acceptance:

• Accepted by over 4,000 universities
• Widely used in the United States and Canada
• Still expanding in some regions

Although DET acceptance has grown rapidly, some universities and visa programs still require IELTS or TOEFL.

Speaking Section Differences

The speaking component is one of the most noticeable differences between the two exams.

In the IELTS speaking test, candidates participate in a face-to-face interview with a trained examiner. The interview usually lasts about 11–14 minutes and includes questions about personal experiences, opinions, and abstract topics.

In contrast, the Duolingo English Test speaking section involves responding to prompts while speaking into a computer microphone. The responses are recorded and evaluated by a scoring system.

Students who feel comfortable speaking with an examiner may prefer IELTS, while those who prefer a digital format may find DET easier.

Preparation Differences

Preparing for the Duolingo English Test and IELTS also requires different strategies.

Preparing for DET:

• Practice quick responses to prompts
• Improve listening and typing accuracy
• Become familiar with adaptive question types

Preparing for IELTS:

• Practice structured essays for writing tasks
• Develop speaking skills for the interview format
• Improve academic reading comprehension

Because IELTS follows a more traditional format, preparation materials and courses are widely available.

Advantages of the Duolingo English Test

• Lower cost
• Shorter exam time
• Results available quickly
• Can be taken from home
• Flexible scheduling

Advantages of IELTS

• Widely recognized worldwide
• Accepted for immigration and work visas
• Trusted by universities and governments
• Face-to-face speaking assessment

Which Test Should You Choose?

The best test depends on your goals and situation.

You should consider taking the Duolingo English Test if:

• Your target universities accept DET scores
• You want a lower-cost exam
• You need results quickly
• You prefer taking the test online

You may prefer IELTS if:

• Your university requires IELTS specifically
• You need the test for immigration purposes
• You prefer a traditional exam format
• You want the most widely recognized English test

Final Thoughts

Both the Duolingo English Test and IELTS are valid ways to demonstrate English proficiency for academic study. The Duolingo English Test is a modern, convenient option that continues to grow in popularity, especially for students applying to universities in North America.

However, IELTS remains the global standard for many institutions, immigration systems, and professional certifications.

Before deciding which test to take, carefully review the English language requirements of the universities or programs you plan to apply to. By choosing the test that best fits your goals, budget, and timeline, you can make the application process much smoother and more efficient.

FAQs (Frequently Asked Questions)

Is the Duolingo English Test accepted everywhere that IELTS is accepted?

No. IELTS is generally accepted by universities, governments, and professional organizations worldwide. The Duolingo English Test (DET) is accepted by thousands of universities, but acceptance is not universal. Some institutions accept DET only for certain programs, intakes, or degree levels, and some do not accept it at all. Before choosing a test, check the official admissions page for your target university and confirm the exact test options and minimum score requirements for your specific program.

Which test is better for studying abroad: DET or IELTS?

Neither test is “better” in every situation. The best choice depends on your target schools, deadlines, budget, and personal strengths. DET is often ideal for students who want a lower-cost exam, need results quickly, and prefer taking the test from home. IELTS is often the safer option when you apply to multiple countries or institutions, because it is more widely recognized and is frequently required for immigration or professional licensing pathways. If your target university accepts both tests, you can choose based on convenience and which format matches your learning style.

Which test is easier: Duolingo English Test or IELTS?

Difficulty depends on the test-taker. Some students find DET easier because it is shorter, taken online, and includes many quick tasks rather than long sections. Others find IELTS easier because the format is predictable and the speaking test is a live interview with an examiner, which can feel more natural than recording responses into a microphone. DET also uses an adaptive format, so question difficulty changes as you answer, which can feel challenging for some students. The most reliable approach is to try official practice materials for both tests and see which format feels more comfortable.

How do DET scores compare to IELTS band scores?

DET scores and IELTS band scores are not directly interchangeable. Many websites provide comparison charts, but these are approximate and should be used for planning rather than “exact conversion.” Universities may publish their own equivalency tables, and those are the most reliable for that specific institution. If your target school lists DET requirements directly, follow those official DET cutoffs instead of relying on a generic chart.

Do universities prefer IELTS over the Duolingo English Test?

Policies vary by institution and program. Some universities treat DET and IELTS as equally acceptable options and focus only on whether you meet the published minimum score. Other universities may accept DET but still prefer IELTS or TOEFL for certain departments, scholarship decisions, or graduate programs. In many cases, preference is less about the test “reputation” and more about internal policy. If your program is competitive, aiming above the minimum requirement can help regardless of which test you choose.

Can I use the Duolingo English Test for immigration?

In many countries, immigration systems typically require IELTS or other specific exams, and DET is often not accepted for official immigration purposes. If you need an English test for a visa, permanent residency, or professional licensing, check the official requirements from the relevant government or licensing authority. Even if DET is accepted by your university, it may not be accepted for immigration or work pathways.

What are the main disadvantages of the Duolingo English Test compared to IELTS?

The biggest disadvantage of DET is that acceptance is still not universal, especially outside North America or in highly regulated pathways. Another issue is that DET is taken at home under strict online proctoring rules, so test conditions matter. Technical problems, unstable internet, or a non-compliant testing environment may cause delays or invalidate results. IELTS, while more expensive and time-consuming, is standardized through official test centers and is widely recognized for both academic and non-academic purposes.

What are the main disadvantages of IELTS compared to the Duolingo English Test?

IELTS is usually more expensive and takes longer to complete. You typically need to book a test date at a testing center and travel there in person. Results can also take longer than DET. In addition, some students feel stress during the face-to-face speaking interview. However, IELTS offers strong global recognition and is widely accepted for university admission, immigration, and professional requirements, which is a major advantage for many applicants.

How should I choose if my target university accepts both tests?

If both tests are accepted, consider these factors: timeline, cost, test format preference, and your strengths. If you need a fast result and lower cost, DET may be a practical option. If you are applying to multiple countries or want the most widely recognized score, IELTS may be safer. Also consider your speaking preference: if you speak better in real conversation, IELTS speaking can be an advantage; if you prefer recording answers digitally, DET may suit you. Finally, always aim above the minimum score requirement when possible.

How long are scores valid for DET and IELTS?

Both DET and IELTS scores are generally valid for two years. Universities may require that scores remain valid at the time of application, enrollment, or document submission. If you are applying across multiple intakes or planning a delayed enrollment, confirm the timeline carefully. If your score will expire soon, it may be better to retake the exam earlier rather than risk missing deadlines.

What is the best way to prepare for DET and IELTS?

Preparation should match the test. For DET, focus on timed responses, quick speaking and writing tasks, listening accuracy, and typing speed. Practice in a realistic test environment to avoid technical issues. For IELTS, focus on structured writing (Task 1 and Task 2), speaking interview practice, and improving academic reading and listening skills. In both cases, taking official practice tests and reviewing your weak areas is the fastest way to improve. If you are close to a required score, targeted practice in your weakest skill often produces the biggest results.

Duolingo English Test: Complete Guide 2026