The only program of its kind in the world — a premium, step-by-step system that teaches students to use the Desmos calculator strategically on the digital SAT and ACT.
Learn the fastest, smartest ways to solve problems using Desmos.
Practice with authentic SAT and ACT questions.
Save time, reduce stress, and walk in with confidence.
Clear, step-by-step lessons that build real understanding.
Watch full solutions using Desmos, explained simply.
Proven techniques to solve faster and smarter.
Unlimited access for 12 months on any device.
A real recording of the Desvantage practice arena. The coach types each move into a live calculator, right beside the question.
Not a mockup. Captured from the live product.
"Desvantage showed me shortcuts I never knew the calculator could do. Math felt so much faster."
"I stopped second-guessing myself. I just graph it, tap the point, and move on."
"I finally feel confident using Desmos on test day instead of avoiding it."
Illustrative examples. Individual results vary.
1 Year Access
🛡️ 7-day money-back guarantee
Yes. The digital SAT and ACT both use the Desmos graphing calculator, and Desvantage trains you inside a live Desmos calculator, so test day feels like practice.
No. Everything runs inside Desvantage in your browser. Nothing to install, nothing to sign up for separately.
Most students learn the core moves in a single sitting and lock them in with a few practice sessions. The time you save on easy questions goes straight to the hard ones.
Email us within 7 days of purchase and we refund you in full, no questions asked.
Yes, it renews at $299 each year so returning students keep access. Cancel anytime in one click and keep access until the end of your paid year.
Absolutely. Purchase with your card, then let your student log in with the account email. One account per student.
We've got answers. Check the FAQ above for details on access, refunds, and more, or reach us at support@desvantage.com.
View FAQ