In which countries international students are eligible to give Duolingo English Test?

When you apply for admission in any university with your DET score, the admission committee needs no verification. As Duolingo itself share the scorecard of your test directly to the university through its secure portal. This is to ensure authenticity and prevent tampering.

Yes, you can send your certified Duolingo English Test score report to as many universities as you wish. It is free of charge.

If you have not started your Duolingo English Test only then you can request for fee refund. Log in to your DET account and raise the refund request withtin 21 days of purchaging the test. Remember, after the DET test is started or the 21 days window passes, you can not ask for refund.

No, Aalto University Finland does not accept Duolingo test for admission to Master's and Doctoral courses where the language of instruction of the course is English. But, to prove the English language proficiency, international applicants are required to submit the minimum scores given below: 

No, Duolingo does not announce a public list of speaking topics. However, candidates can prepare by practicing with commonly encountered themes such as food, family, studies, work, and entertainment. You need to focus on improving speaking skills. This will help you in every topic you want to speak.