Digital SAT practice that targets your weak spots

Boost your SAT score with practice from a 1500 scorer

Kross SAT Packs are original drill sets, organised by skill, written by a student who scored 1500. Every question comes with an explanation that shows the fastest route, including when to reach for Desmos, so you stop losing points to the same mistakes.

Get the free cheat sheet See the packs
Advantages
OriginalWritten from scratch
By skillDrill one weakness at a time
DesmosFaster solutions
AffordablePacks from €9
InstantDownload right away
How it works

How Kross works

Find your weak skills, drill them, ace the exam.

Fix the mistakes Gain more confidence Boost your score Learn the Desmos tricks

Take the free diagnostic

Sign up for the free cheat sheet and you also get a 20-question diagnostic. Your results show which skills are costing you the most points.

Drill with the packs

Each pack covers one skill area with original questions from easy to hardest-module level. Every answer has a step-by-step explanation and, where it helps, the Desmos shortcut.

The SAT

Finish with timed drill sets so the pace feels normal on test day. Walk in knowing which traps to expect and how to avoid them.

Why Choose Us

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Kross SAT Packs

Pick the packs for the skills you need, or get all six in one bundle.

Drill packs

Six packs, one per skill area. Every question is original, comes in easy, medium and hard versions, and has a full explanation.

  • AlgebraLinear equations, systems and inequalities€12Coming soon
  • Advanced MathQuadratics, exponentials and functions€15Coming soon
  • Problem-Solving & DataRatios, percentages, statistics and probability€9Coming soon
  • Geometry & TrigArea, volume, circles and right triangles€9Coming soon
  • Reading: Ideas & StructureMain idea, evidence, words in context, text structure€12Coming soon
  • Writing: Grammar & ExpressionBoundaries, form and sense, transitions, synthesis€12Coming soon

Not sure where to start? Take the free diagnostic first.

Complete bundle

All six drill packs in one download: every Math and Reading & Writing skill area, for less than the price of three packs.

  • Includes: all 6 drill packs, plus every future update to them.
  • Best for: students who want to cover the whole test, or don't know their weak spots yet.

€29 instead of €69

Coming soon

Kross Tracker

A web app that remembers your mistakes so you don't repeat them.

  • Error log: every question you miss, and why.
  • Timed drills to build test-day pace.
  • Score trend so you can see the progress.
  • Spaced repetition brings back the questions you missed until they stick.

€5 / month, or €19 per semester

Join the waitlist

1:1 tutoring

Want someone to go through your mistakes with you? Kris, who scored 1500 on the Digital SAT, offers one-on-one online sessions on top of the packs.

Tell us your test date and the skills you're stuck on, and we'll reply with availability.

Ask about tutoring

Support and Contact

Questions about the packs, or interested in tutoring? Write to us anytime.

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Or write here