For parents
The SAT prep they'll actually keep doing.
Not because the questions are better. Because it takes ninety seconds, it arrives on its own, and nobody has to remember to open anything.
You stop being the one who has to bring it up
Most prep quietly hands you a second job: noticing it isn't getting done, and saying so. That's the part that wears everyone down. It is usually why the last thing stopped getting used, and rarely because the thing itself was bad.
TextPrep sends the question. They answer when it's convenient during the day. If they miss it because they are busy (and teens are busy), they can access it later through the private results link we text them. Ninety seconds a day keeps their momentum going.
Daily SAT · MathIf 3x − 7 = 14, what is the value of x?A) 5B) 7C) 9D) 11Reply with a letter.
B
Correct. Nice.
Add 7 to both sides so 3x = 21, then divide by 3 to get x = 7. Two clean steps: undo the subtraction, then the multiplication.
Start with 3 free questions →No card to start. Nothing to install.
Why this one sticks
It goes where they already are
No app to download
It's a text message. There is no icon to find, no password to reset, and nothing new competing for space on the phone.
No account for them to abandon
Signing up takes a phone number and a test date. There's no profile to build before anything useful happens.
No extra screen time
Ninety seconds in the messages app they already have open. It replaces nothing and adds no new place to be.
Why it works
A little every day beats a lot at once
Two findings in learning research have held up for decades. The first is spacing: the same study time, spread across days, is remembered better than the same hours crammed together. The second is retrieval practice: pulling an answer out of your head is worth more than reading the answer again, even when the reading feels more productive at the time.
When researchers ranked ten common study techniques across 242 studies and about 169,000 learners, practice testing and spacing came out at the top, and re-reading and highlighting near the bottom. The two are strongest together. A question a day, with the worked answer attached, is that combination in the smallest form we could build.
Sources: Cepeda et al. (2006), Donoghue & Hattie (2021), and Dunlosky et al. (2013). The fuller version, with the numbers, is on why it works.
Straight talk: what the research does and doesn't claim
- • No study has tested an SMS service or a specific SAT point gain: TextPrep applies the methods, it doesn't guarantee a score.
- • Spacing helps in math too, but the effect there is more modest than for fact- and vocab-heavy material.
- • Effects are clearest on recall and core skills; gains on deeper reasoning are likely smaller.
What it costs
$14.99, once. It never renews itself, no recurring subscription.
That covers the whole run up to the test date you pick, up to five months of daily questions. There is no subscription, no plan to remember to cancel, and no charge that turns up next year because nobody noticed. When the test is over, it is over.
The course still sitting unopened cost more than this and stopped getting used somewhere around week two. The question was never whether it was worth the money. It was whether anything would actually get done with it, which is why the first three questions here are free and you will know inside a week.
See what it costs →Priced by how long there is. The sooner the test, the less there is to send.
Knowing how it's going
You can see the work without asking every night
Your student can share a results page with you. It holds every question they have had, what they answered, and the worked explanation. It opens in a browser with no login and carries no personal details.
They share it; you can't pull it. That is deliberate. It is meant to end the nightly “did you do it?” rather than become one more thing to check. The page closes 30 days after test day.
Who makes this
A high schooler and her dad
Charlotte is taking these tests. Tim builds the software. The questions get read by someone who has to sit the exam, which is a slower way to build a question bank and a better one.
Three questions, free, before you decide
Pick a test and a date. The first question arrives the next morning. If it isn't getting used, you will know within a week. You will not have paid for a year of it either.
Tutor or advisor? There's a page for you.