R.test

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Tagline:AI diagnostic tests that predict your SAT®/ACT® score in 40 minutes

Updated:October 24, 2026

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What is R.test?

R.test is an AI-powered diagnostic test platform for the SAT®, ACT®, PSAT, and Digital SAT. Its Fast CAT algorithm adapts each test to your level, predicting your score from a fraction of the usual questions and showing exactly where to improve.

How to use R.test?

1. Choose your exam — Digital SAT®, ACT®, or PSAT/NMSQT®. 2. Take a short R.test Mini of about 10 questions per section. 3. Open your analytics report to see predicted score, target score, and top areas for improvement. 4. Practice with AI-curated questions matched to your weak spots.

R.test Core Features

AI Score Prediction

Knowledge Tracing and Score Prediction models estimate your SAT®/ACT® score from a minimal set of questions, validated through research presented at leading AI conferences.

Adaptive Fast CAT Testing

The Fast CAT algorithm selects questions that best assess your preparedness, cutting test time to about 1/4 of a full-length exam while keeping the insights deep.

Detailed Analytics Report

Compare your predicted score against your target score and see your top 3 areas for improvement, with step-by-step visual explanations for every question.

Close-to-Real Test Environment

Practice with section timers, an on-screen calculator, reference sheet, and question navigator that mirror the official digital test interface.

R.test Use Cases

Students checking SAT®/ACT® readiness in under an hour before the real exam

Tutors and counselors spotting each student's top 3 areas for improvement to guide study

Test-takers practicing the digital SAT format with a realistic, timed interface

Learners using AI-curated questions to target weak spots between full-length practice tests

R.test Frequently Asked Questions

What is R.test Mini?

R.test Mini, powered by our AI technology, can predict your score with fewer questions than a full-length test. It uncovers your strengths and targets areas for improvement as the AI selects questions based on your progress assessment.

How long is R.test Mini?

On average, R.test Mini takes about 40 minutes, though the exact time depends on the specific test. It delivers the same analytics report with roughly 1/4 of the effort of a full-length test, and the full-length version remains available.

What do I get in the analytics report?

Start with your predicted score versus your target score, then use the Practice section for a push in the right direction. Questions curated by our AI model help uncover your specific areas for improvement.

How is the predicted score calculated? Is it accurate?

87% of SAT® and ACT® test-takers said R.test's score predictions matched their actual scores. The Knowledge Tracing (KT) and Score Prediction (SP) models are backed by rigorous research presented at reputable AI conferences.

Who invented R.test?

R.test was created by a team of test-prep experts who develop high-quality content and strategies, working alongside AI researchers dedicated to using advanced technology for educational impact.

Is R.test fully online? What device do I need?

R.test runs entirely online and works with Chrome, Safari, and Edge browsers. For the best experience we recommend a screen width of at least 1080px.

R.test Product Background & Official Links

R.test Support Email & Customer service contact & Refund contact etc.

R.test Support Email: contactus@rtest.ai

More Contact, visit the about us page(https://rtest.ai/why)

R.test Company Info

R.test Company name: Riiid, Inc.

R.test Developer Type: company

More about R.test, Please visit the about us page(https://rtest.ai/why)

R.test Pricing & Plans

Free Mini Test

Free

Take a free R.test Mini diagnostic
Predicted score from about 10 questions per section
Full analytics report with top areas for improvement

Subscribe & upgrade now

R.test Plus

flat

$24.99

SAT®/ACT® Plus pack with full and mini tests
AI-curated practice questions
Detailed analytics and step-by-step explanations

Subscribe & upgrade now

R.test Pro

flat

$54.99

Digital SAT® Pro pack
Extended test sets and analytics
Full-length and mini test combinations

Subscribe & upgrade now

Digital SAT Q Bank

flat

$99.99 / 30 days

Digital SAT® question bank access
New sets released regularly
30-day access window

Subscribe & upgrade now

R.test Tags

Free Freemium Web App For Students Cloud-based One-time Purchase Mobile Friendly

Best Suited Occupations for R.test

Students Teachers & Instructors

R.test

Active

Tagline:AI diagnostic tests that predict your SAT®/ACT® score in 40 minutes

Updated:October 24, 2026

Domain Rating:

19Domain Rating by Ahrefs

Social Media:

AI Homework Helper AI Quiz Generator AI Knowledge Base AI Flashcard Maker Free Freemium Web App For Students Cloud-based One-time Purchase Mobile Friendly

Open Website

Visit Website

What is R.test?

How to use R.test?

R.test Core Features

AI Score Prediction

Knowledge Tracing and Score Prediction models estimate your SAT®/ACT® score from a minimal set of questions, validated through research presented at leading AI conferences.

Adaptive Fast CAT Testing

The Fast CAT algorithm selects questions that best assess your preparedness, cutting test time to about 1/4 of a full-length exam while keeping the insights deep.

Detailed Analytics Report

Compare your predicted score against your target score and see your top 3 areas for improvement, with step-by-step visual explanations for every question.

Close-to-Real Test Environment

Practice with section timers, an on-screen calculator, reference sheet, and question navigator that mirror the official digital test interface.

R.test Use Cases

Students checking SAT®/ACT® readiness in under an hour before the real exam

Tutors and counselors spotting each student's top 3 areas for improvement to guide study

Test-takers practicing the digital SAT format with a realistic, timed interface

Learners using AI-curated questions to target weak spots between full-length practice tests

R.test Frequently Asked Questions

What is R.test Mini?

How long is R.test Mini?

What do I get in the analytics report?

How is the predicted score calculated? Is it accurate?

Who invented R.test?

R.test was created by a team of test-prep experts who develop high-quality content and strategies, working alongside AI researchers dedicated to using advanced technology for educational impact.