Get Your Score in 40 mins!

Just complete 1/4 of a full test and get actionable insights.


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Take a test
Get a report
Review questions

Available Tests

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Digital SAT®

The new adaptive SAT





Scholastic Aptitude Test





American College Test





Coming Soon

About Analytics Report

Take a Look at Our Report

AI Predicted

Discover your AI-predicted score and review each question for better insight.

Score PredictionScore Prediction


Show us your skills

Take a shortened version of your test in less than an hour. You’ll be done before you even realize.


Find where you are

Let our AI show where you are: your predicted score, areas of improvement, test-taking habits, and many more!


Take the next step

Learn any topics you need to improve on along with practice questions picked out by AI.


Trusted by students, teachers, and parents


10th grade

This is a very efficient tool to quickly assess scores. Full practice tests take a long time and it's really tedious to do. But R.test reduces it to 1/4 and I can still see how I would perform in the actual test.


11th grade

It’s a really fast and efficient way to calculate your score. The diagnostic test is just about 10 questions per section, so it felt much shorter than I expected. And it is still accurate!


11th grade

R.test’s report is totally different from other reports I have seen before. Others only give score, but this gives you detailed diagnostic and tells you what exactly you need to work on.


10th grade

This is amazing! I think it would be helpful in any stage, but especially in the middle of test preparation, because it gives a reality check of where you are at and what you need to improve.



I would recommend this to students new to SAT to casually check their scores without spending too much effort and cost. R.test is quick, easy, and accessible.


SAT Teacher

The diagnostic test takes less than an hour so it’s a great way to check up skills before the actual test. There are not many quality practice sets out there, but this is very close to official sets.



As a counselor who looks over dozens of students, pointing the top 3 weaknesses is really helpful. It enables me to provide personal guidance to my students in a limited time.


SAT Teacher

This is a perfect tool to practice for digital SAT. I highly recommend this to students and tutors to gear up for the format changes next year.


R.test is backed by 8 years of research


Experts involved in creating R.test


Hours of research and development


Data points used for training AI



Powered by AI, R.test Mini can predict your score with far fewer questions compared to a full-length test, and help you quickly identify your strengths and areas of improvement. As you solve each question, our AI selects the next question that best assesses your knowledge and skills.

In general, it takes around 40 minutes. The length varies according to the test. You only need to solve 1/4 of a full-length test to receive your analytics report, but we still provide you the full-length version for use in your own time.

The R.test analytics report shows 10 different types of insights that analyze the current state of your test readiness. We recommend first using the report to understand your current “Predicted Score” and measure how far you are away from your “Target Score”. If you are not quite there yet, take a look at the “Top 3 Questions to Boost Your Score” section for an easy boost. To dive deeper into your areas of improvement, try solving the questions that our AI model curates just for you.

87% of SAT and ACT test-takers responded that the R.test score predictions were accurate relative to their actual test scores. Our Knowledge Tracing (KT) and Score Prediction (SP) machine learning models have been thoroughly researched and presented in renowned AI conferences, proving their performance and efficiency. Further information about our research team and specifics of KT and SP models can be found here.

R.test is developed by a team of test prep experts — with extensive experience in developing high-quality test prep content and designing test prep strategies — and AI researchers with a proven track record of leveraging advanced technology to deliver real impact in education.

Yes, it is 100% online and compatible with Chrome, Safari, and Edge. We recommend at least 1080px width for the best experience.

We are continuously working to add more diagnostic tests covering more exams. We expect to add new tests in early 2023, including the Digital SAT. Stay tuned!

We are going to update our price plans for bulk purchases in early 2023. If you are interested now, contact us at r.test@riiid.co, and let’s talk about how we can help you!

R.test currently only supports PayPal. Customers from the following countries may experience issues with Paypal when checking out: Afghanistan, Bangladesh, Cameroon, Central African Republic, Cote D'Ivoire (Ivory Coast), Democratic People's Republic of Korea (North Korea), Equatorial Guinea, Gabon, Ghana, Haiti, Iran, Iraq, Lebanon, Liberia, Libya, Monaco, Moldova, Montenegro, Myanmar, Pakistan, Paraguay, Saint Lucia, South Sudan, Sudan, Syria, Timor-Leste, Uzbekistan and Zimbabwe. If you experience any issues, please contact r.test@riiid.co

Get your score in 40 mins!

Just do 1/4 of a full test and get actionable insights.