OnePrep: SAT, ACT & AP Prep

OnePrep: SAT, ACT & AP Prep

Your dream score starts here

750 ratings
27 reviews
Free
In-App PurchasesWith Ads

Details

Released
March 10, 2026
Updated
November 6, 2026
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About

Prepare for standardized tests with a comprehensive study tool. Access thousands of practice questions, realistic mock exams, and AI-powered feedback. Get personalized guidance from an AI tutor to improve your scores.

✓Thousands of SAT-style practice questions
✓Realistic timed mock exams
✓AI-powered feedback and grading
✓Personalized study guidance
✓Progress tracking
✓Cross-device compatibility
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What's New in OnePrep

2.5.4

November 6, 2026

Prepare smarter with AP practice tests, improved study planners, Daily Questions and streak freezes. Enjoy a smoother Preppy chat experience and improved iPad layouts. We’ve also improved plan selection, Exam Pass purchases, sign-in and progress tracking, with fixes throughout the app.

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Subscriptions & In-App Purchases

OnePrep Pro (1 Month)

Unlock all premium features for one month.

$99.991 Month
How to cancel OnePrep subscription ⁉️

User reviews

Used to be good

Why is everything behind a paywall nowwwwwww☹️. This used to be a great resource for practicing questions from college board but now they’re just replacing all the questions behind a subscription. It’s no longer worth it to use this app, just use college board and khan

I hate how nobody knew about this app

Hey guys, this is one of the best apps that u can use as a student in the us or a student out of the us who is taking sat act ap college applications and even more things that I think they are going to add, it is amazing, the app support is amazing, one thing I LOVE about this app is that as soon as u send them a future that u wanna see in the app they would put it in the next day or the next week, I kid you not I had so many requests and they all had been granted so yeah I love love love this app. I would love to thank the creator who made it.


I would like to add the fowling futures
Can u add writing practice not just for English but just for general English skills, can u also please add ap pre calc because my teacher don’t teach ngl so I would like u guys to do that, I would also like u guys to edit the lessons for ap physics and that is because I need it to be more math haven’t and add harder questions so that everyone get to understand and make mistakes so that they ace the test lol
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not good

can’t do anything without spending 100 a month smh

overrate sat resource

I tried using this to study for an upcoming sat but it’s genuinely unbearable. it’s constantly trying to advertise its pro plans (which are 81 dollars a months, genuine insanity) and it would barely let me get halfway through my study plan for the day before saying that i was out of orbs and had to stop for the day. you can tell that this is owned by a money hungry corporation rather than a user centered organization, and i’m tired of dealing with resources like this as a student. in my opinion it’s better to use completely free resources such as khan academy or the online blue book, because this will get you no where unless you have a lot of patience waiting for your orbs to reload, or a wallet big enough to fulfill their insatiable greed to desperate students money.
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Excellent

Extraordinary help for SAT students

Developer apps

FAQ

What standardized tests does OnePrep help with?

OnePrep offers comprehensive preparation for the SAT, ACT, and AP exams. It provides thousands of practice questions and realistic mock exams tailored to the official formats of these tests.

How does the AI tutor in OnePrep work?

Prepy AI, the personal tutor in OnePrep, offers instant help with difficult questions, provides clear explanations, and delivers personalized study guidance. This AI feedback is designed to match the official SAT® format.

Can I track my progress with OnePrep?

Yes, OnePrep includes progress tracking features to help you identify your weak areas. This allows for a more focused study approach to improve your scores.

What are the subscription options for OnePrep?

OnePrep offers several subscription plans, including OnePrep Pro (1 Week) for $28.49, OnePrep Plus (1 month) for $89.99, and OnePrep Pro (1 Month) for $99.99. There is also a monthly Pro option with a 3-day free trial.

Does OnePrep have ads?

Yes, OnePrep contains advertisements. As a free app with in-app purchases, advertisements are part of the user experience.

On which devices can I use OnePrep?

OnePrep is available on iPhone, iPad, and iPod. The app is designed to work seamlessly across all your devices, allowing you to study anywhere, anytime.

How often is OnePrep updated?

The latest version of OnePrep is 2.5.4, and it was last updated on November 6, 2026. This indicates regular updates to improve the app's features and performance.

What is the age rating for OnePrep?

OnePrep has an age rating of 4+. This makes it suitable for a wide range of students preparing for standardized tests.