Most students need 40–80 hours of focused prep. Caliber is the only app that combines real learning science with game mechanics that make your teen voluntarily open it. Less than one hour of tutoring.
You've been meaning to figure this out for weeks. Meanwhile, the test date gets closer.
You bought a Barron's or Princeton Review book. It's sitting on your child's desk, unopened. They looked at it, said "this is huge," and never touched it again.
You set them up with a free Khan Academy account. They completed about 15 minutes of practice, said it was boring, and went back to their phone.
You Googled "SAT tutor" and closed the tab when you saw $60–$100/hour. Three months of consistent prep at that price? That's a family vacation.
No switching between Khan Academy, Bluebook, flashcard apps, and YouTube. One app, everything included.
The spaced repetition system (the same science behind medical school flashcards) schedules reviews right before your child would forget. No wasted time.
Boss Fights, XP levels, 38+ badges, and domain quests turn SAT prep into something that doesn't feel like homework. Even wrong answers earn XP.
Full adaptive mock tests simulate the real SAT—98 questions, 2 hours 14 minutes, adaptive difficulty, score estimation from 400–1600.
After every answer, students rate their confidence. Over time, the app reveals whether they're overconfident, underconfident, or well-calibrated.
Wrong answers trigger Deep Dive prompts that teach the underlying concept—not just "here's the right answer." Two-tier hints give a nudge first.
The Desmos graphing calculator is built into every math question—the exact same calculator students use on test day. No surprises.
8 study modes from quick 5-minute practice to full 2-hour test simulations. Your child picks what fits their schedule.
Parents who were exactly where you are right now.
"Sophie used Khan Academy for about 20 minutes and never opened it again. She's been on Caliber for 3 weeks and just beat her 4th boss fight. I didn't have to ask her once."
"I almost signed up for a $2,000 Princeton Review course. Then I found Caliber for $99. My son's practice scores went from 940 to 1120 in 4 weeks."
"The spaced repetition is the real secret. He's actually retaining what he studies instead of cramming and forgetting. I wish this existed when I took the SAT."
See exactly what you get with Caliber versus the alternatives.
| Caliber | Kaplan | Princeton Review | Private Tutor | |
|---|---|---|---|---|
| Price | $29/mo or $99 | $799+ | $2,199+ | $2,400+ |
| Real SAT Questions | ✓ 2,143 | 500–1,100 | 3,200+ | N/A |
| Spaced Repetition | ✓ SM-2 algorithm | ✗ | ✗ | ✗ |
| Gamification | ✓ Boss fights, XP, 38+ badges | ✗ | ✗ | ✗ |
| Adaptive Mock Test | ✓ Full 2hr 14min | 2–4 tests | 5–9 tests | ✗ |
| Confidence Tracking | ✓ Calibration gauge | ✗ | ✗ | ✗ |
| Error Analysis | ✓ 5-category breakdown | ✗ | ✗ | ✗ |
| Commitment | Monthly or one-time | Time-limited | Time-limited | Per session |
Every plan includes full access to all 2,143 questions, 8 study modes, adaptive mock tests, boss fights, spaced repetition, and the strategy guide. No features held back.
All plans include instant access. No hidden fees. Works on any device.
Pick your plan, get instant access. Monthly subscribers cancel anytime. Semester and Graduation plans are one payment—done. No auto-renewal surprises.
Works on phone, tablet, laptop, desktop—any modern browser. Cloud sync means they start on their laptop and continue on their phone.
Every one of the 2,143 questions appeared on an actual SAT in the last 3 years. Your child practices on the real thing.
Caliber gives your child the structure, the science, and the motivation to prep—starting today.