Advanced Math · Nonlinear functions
f(x) = x² − 6x + 5. For what value of x does f reach its minimum?
Medium1 of 12
Digital SAT preparation · Uzbekistan
Move your SAT score, one skill at a time.
Full adaptive practice tests on the real clock, a report that finds the skills costing you points, and practice aimed at exactly those — until the number moves.
Total score
1500+
R&W 760 Math 740
- Your first full practice test
- Every skill you drill moves the number
- The score serious preparation aims at
3,700+questions in the bank, by domain and skill
134mintwo sections, four modules, a clock that does not pause
27/ 22questions in each Reading & Writing and Math module
1600maxthe College Board’s scale, with a score for each section
How the digital SAT works
Your second module is decided by your first.
- Every section begins with Module 1. A mixed set of easy, medium and hard questions.
- Module 1 is measuring you. How many you get right decides which Module 2 you are given.
- A strong Module 1 unlocks the harder Module 2. The whole scale stays open, all the way to 800.
- A weak Module 1 routes to the easier Module 2. Even a perfect second module tops out near 600.
- So the first module matters most. SatStars routes on the same rule, in both sections — practice that ignores it is practice for a different exam.
Module 122 / 27 correct
Strong Module 1
Harder Module 2
200up to 800
Weak Module 1
Easier Module 2
200tops out ≈600
The SatStars loop
Not a pile of questions. A feedback loop.
- Take a test. A full adaptive paper: two sections, four modules, the real clock.
- Get detailed results. A 400–1600 score with both sections, and every question explained.
- Identify weaknesses. Accuracy by domain and skill shows exactly where the points went.
- Practise targeted skills. The Question Bank opens on that skill, and remembers every answer.
- Take another test. A stronger Module 1 now opens the harder Module 2.
- Improve. The same report, a higher number — and the next skill to work on.
The score report
A score is where the work starts.
- First, the number. 400–1600, with a score for each section.
- Then, where it came from. Accuracy in every domain you were tested on.
- Then, the one that cost the most. The report finds your weakest skill for you.
- Your next improvement is here. Advanced Math at 64% is where the next points are.
- And the practice is already waiting. Questions from exactly that skill, in the Question Bank.
Score reportPractice test 3
Total score1380
Reading & Writing 710 Math 670
- Expression of Ideas91%
- Craft & Structure86%
- Algebra78%
- Advanced Math64%
Your next improvement is here. Advanced Math · 64%
Advanced Math · Nonlinear equations
How many real solutions does x² = 4x − 4 have?
Hard2 of 12
Advanced Math · Equivalent expressions
Which expression is equivalent to (x + 3)² − 9?
Medium3 of 12
Everything else a serious preparation needs.
Tests and a report are the spine. Around them: reading, words, and a reason to keep coming back.
-
01
Bluebook-style practice tests
Full-length adaptive papers and generated mocks, in the player you will meet on test day.
-
02
A question bank that remembers
Thousands of questions by domain, skill and difficulty. Come back and it opens where you left off, with every answer graded.
-
03
Reading library and vocabulary
Half the exam is reading. Read a chapter, tap a word like , and it goes into a deck you can drill.
-
04
Battles
Head to head with another student on the same questions and one clock, graded at the end.
-
05
Competitions Pro
One paper, one window, and no standings until it closes — everybody sits it on equal terms.
-
06
Streaks and the leaderboard
Every question pays points once, on your first answer. Practise two days running and a streak starts counting.
Released papers, sat in the same player.
The actual exams, not questions written to look like them — each one read out of the paper it was published as and checked question by question.
Every paper in the appThe shelf could not be reached just now. Every paper is inside the app either way.
The first released papers are being checked question by question. They appear here the day they are published.
One student’s preparation
1480
+420 since the first full test
- Information & Ideas90%
- Craft & Structure87%
- Algebra89%
- Advanced Math84%
1060 and 1480 are one SatStars student’s first and last reports — eleven weeks, four full papers a week. The weeks between are drawn to show the shape of the climb.
Start free. Upgrade for the volume.
What changes between plans is how many full papers you can sit a day, and whether the released papers, lessons and competitions are open.
Free
0 so‘m
Enough to find out where you stand.
- Bluebook-style practice tests
- Reading library
- Vocabulary decks
Pro
See in app
For the term before your sitting.
- Released SAT papers
- Lessons
- Competitions
Elite
See in app
Everything, at the most papers a day.
- Everything in Pro
- The highest daily allowance
- Battles
Before you start.
Is this the digital SAT or the old paper one?
The digital SAT. Two sections, two modules each, 134 minutes, an adaptive second module, and the 400–1600 scale the College Board actually uses.
Do I need to pay to take a full test?
No. A free account sits full-length practice tests with the score report and the explanations. Paid plans raise the daily allowance and open the released papers and competitions.
Where do the questions come from?
The bank is built from the College Board’s own released material, tagged by domain and skill. Released papers are read out of the sittings they were published as and checked question by question before anyone can sit them.
Will it run on my phone?
Yes, and the drills are made for it. Sit full-length tests on a laptop if you can — that is what test day is, and practising on the shape of the real thing is the point.
Your number can move. Find out where it starts.
One full test, on the real clock, scored on the real scale.