SAT Vocabulary for iOS

The SAT vocab app that
blocks TikTok & Instagram until you study.

1,000 words. Illustrated flashcards. Three vocab games. Spaced repetition. And the only app that turns your phone against your worst habits.

Start Your Free Trial
7 days free · $39.99/yr · Cancel anytime
1,000 curated SAT words
3 vocabulary games
67 days to full mastery
96× daily passive exposures
Now Live on iOS

Open TikTok?
Not until you study.

PrepLockin uses Apple’s official Screen Time API to block any app you choose. When you try to open it, a SAT vocab quiz appears instead. Answer 5 questions. 90 seconds. Then scroll guilt-free.

  • You pick which apps to block
  • Uses Apple’s FamilyControls — not a hack
  • Your data never leaves your device
  • 5 questions, ~90 seconds to unlock
PrepLockin shield screen

SAT Study Blocks

1

Critical Reading

250 words

2

Writing & Language

250 words

3

Math Terminology

250 words

4

Advanced Vocabulary

250 words

Explore SAT Vocabulary

abasementthe act of humiliating or degrading someone; lowering in rank or esteemSATabateto become less intense or widespread; to reduceGRE · SATaberrantdeviating from what is normal or expectedGRE · SATabeyancea state of suspension or temporary inactivityGRE · SATabhorto regard with disgust or hatred; to loatheSATabideto accept or follow a rule; to remain or continue; to tolerateSATabilitythe power or capacity to do something; skill or talentSAT · IELTSabjureTo formally renounce or reject a belief, cause, or claim.GRE · SATablateto remove by evaporation or erosionSATablutionthe act of washing or cleansing, especially for religious purposesSATabnegationthe denial or rejection of something; self-denialSATabolishto formally put an end to something; to eliminate or eradicateSAT · TOEFL · IELTS
View all 1,000 SAT words

Simple pricing.

7 days free. Full access. No feature tiers.

Monthly
$7.99
per month
  • All 1,000 SAT words
  • App blocking + widgets
  • 3 games + streaks + heatmap
Start Free Trial
Best value
Annual
$39.99
per year — $3.33/mo
  • Everything in Monthly
  • Save $55.89 vs. monthly
  • Less than one practice test book
Start Free Trial

No charge until Day 8

Questions

Where do the 1,000 SAT words come from?
Curated from official College Board materials, top SAT prep resources, and frequency analysis of past tests. Organized into 4 categories: Critical Reading, Writing & Language, Math Terminology, and Advanced Vocabulary.
How does app blocking work on iOS?
PrepLockin uses Apple’s official FamilyControls framework — the same Screen Time technology built into every iPhone. You choose which apps to block. When you tap a blocked app, a 5-question vocab quiz appears. Answer correctly and the app unlocks. All data stays on your device.
Is this enough for the SAT?
Our 1,000-word bank covers critical reading vocabulary, writing & language terms, math terminology, and advanced vocabulary — all tested on the SAT. With daily practice, most students master the full list in about 10 weeks.
What happens after the free trial?
Everything is fully unlocked during the 7-day trial. Cancel in iPhone Settings before Day 8 and you pay nothing.

Start today. Master all 1,000 SAT words by June 26, 2026.

Your SAT is getting closer.
Your vocabulary doesn’t have to fall behind.

Download on the App Store
7 days free · $39.99/yr or $7.99/mo · Cancel anytime