Comparison

Linus vs Sharp SAT Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Linus

This app offers a gamified approach to preparing for the new Digital SAT. It provides targeted practice for Math, Vocabulary, and Reading sections, with features like daily quests and progress tracking to make studying engaging and effective.

Highlights
  • Gamified learning with quests and streaks
  • Simulates Bluebook testing experience
  • Targeted Math, Vocabulary, and Reading practice
  • Smart study planner for bite-sized lessons
  • Instant feedback on answers
  • Progress tracking
Features
Read full description

Stop studying harder. Start studying smarter for the new Digital SAT. Linus is the SAT prep app built for how the test actually works now. Adaptive practice that mirrors the real Digital SAT format, so nothing on test day surprises you. WHY STUDENTS CHOOSE LINUS: - 250+ point score improvement guarantee - Adaptive practice that matches the real Digital SAT - Math, Reading, Writing, and Vocabulary all in one app - Personalized study plan based on YOUR test date - Gamified daily practice that actually sticks - Built specifically for the new Digital SAT format START FREE, UPGRADE WHEN YOU'RE READY Try Linus free for 3 days. Practice real SAT questions, see your score improve, then decide. No commitment until you're convinced. HOW IT WORKS Set your target score, enter your test date, and Linus builds a study plan around YOUR timeline. Whether your SAT is in 2 weeks or 6 months, Linus adapts to make every study session count. WHAT MAKES LINUS DIFFERENT Most test prep apps just throw practice questions at you. Linus tracks what you're getting wrong, adapts in real time, and focuses your study time where it matters most. It's like having a private SAT tutor in your pocket. Rated 4.8 stars by students who raised their scores. Questions? Reach us at support@linusprep.com Disclaimer: SAT and BigFuture are trademarks registered and owned by the College Board, which is not affiliated with and does not endorse this product. Bluebook is a trademark of the College Board. WEBSITE: https://linusprep.com TERMS OF USE: https://linusprep.com/legal PRIVACY POLICY: https://linusprep.com/legal/privacy

About

Sharp SAT Prep

This app offers personalized SAT preparation with AI and human tutors. It provides daily adaptive practice sessions that focus on your specific skill gaps and target difficulty levels to help you achieve a higher score. Track your progress and receive step-by-step explanations for practice questions.

Highlights
  • Personalized AI-driven practice
  • Tutor-led guidance
  • Step-by-step explanations
  • Real-time progress tracking
  • Daily practice streaks
  • Goal and score tracking
Features
Read full description

Sharp is personalized SAT prep with both AI and real SAT tutors. Get short daily practice that adapts to your skills and targets weak areas by concept and difficulty, so every session moves you toward a higher score. Why you'll like it: • Practice at your level: Our algorithm picks questions that help you improve faster. • Step-by-step help: Friendly explanations guide you, not just answers. • Personalized study plan: Create a study plan to know what to study next from now until test day. • Real-time progress: See accuracy, time, and skills that need work. • Goal tracking: Set a target score and watch your predicted score grow. How it works: 1. Sign up with your phone. 2. Get daily practice tailored to your skills, target score, and test date. 3. Review mistakes with explanations and try similar problems. 4. Track improvement on your insights view. Privacy: No ads or cross-app tracking. See https://getsharp.app/privacy-policy Terms of Use: https://www.apple.com/legal/macapps/stdeula/ Support: team@getsharp.app

Screenshots

Linus4 screens
Sharp SAT Prep4 screens

Verdict

The call

The clearest difference is ads: Sharp SAT Prep at none against Linus's shown. Sharp SAT Prep also leads on review sentiment (100% vs 68%). Linus's advantage is ratings volume (759 vs 45). On price, rating, update cadence and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Linus sells 14 in-app purchases, starting at $24.99 per 3 months and Sharp SAT Prep sells 3 in-app purchases, starting at $17.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Linus against 4.8 for Sharp SAT Prep. That said, the two scores are not equally well evidenced: Linus has 759 ratings behind it against 45, so its average is the more settled of the two. Written reviews are what separate them: 68% of Linus's written reviews are positive against 100% of Sharp SAT Prep's.

UpkeepUpdate frequency

Linus ships an update every 11 days, Sharp SAT Prep every 3 weeks. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
Linus versus Sharp SAT Prep: the parameters behind the verdict, then further details
ParameterLinusSharp SAT Prep
PriceFreeFree
Rating4.8 (759 ratings)4.8 (45 ratings) — better
Positive reviews68.4% of reviews100.0% of reviews — better
Number of ratings759 — better45
Update frequencyEvery 11 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size93 MB56 MB
Age rating4+4+
DeveloperLinus Labs, Inc.Sharp Test Prep, Inc.

Customer experience

Linus

All ratings722 ratings
Positive95.4%
Neutral1.1%
Negative3.5%
Written reviews38 reviews
Positive68.4%
Neutral2.6%
Negative28.9%

Sharp SAT Prep

All ratings45 ratings
Positive97.8%
Neutral0.0%
Negative2.2%
Written reviews13 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

User reviews

Linus

From 759 App Store ratings

What we love

  • 💪 Perfect app
  • 👍 Nice game
  • 👍 Enjoyable!
  • 👍 Best SAT app
  • 👍 Easily the BEST FREE SAT Resource out there!

Sharp SAT Prep

From 45 App Store ratings

What we love

  • 🚀 Great for SAT prep
  • 👍 Helpful and awesome app
  • 💰 Affordable and budget-friendly
  • 🎯 Improved test scores
  • 🕰️ Easy to fit into schedule

Bugs and requests

Linus

Requested features

2 requests
  • Personalized practice
  • Practice tests

Sharp SAT Prep

No bugs or feature requests surfaced in reviews.

In-app purchases

14 purchases

Linus

Subscriptions13
  • Premium Quarterly3 Days trial$24.993 Months
  • Turbo$24.991 Month
  • Turbo3 Days trial$24.991 Month
Show 10 more
  • Premium Yearly3 Days trial$49.991 Year
  • Turbo Monthly3 Days trial$99.001 Month
  • Turbo Monthly3 Days trial$100.001 Month
  • Turbo$149.991 Year
  • Turbo3 Days trial$149.991 Year
  • Turbo$150.001 Month
  • Linus Premium$249.003 Months
  • Turbo Yearly3 Days trial$499.001 Year
  • Turbo$500.001 Year
  • Turbo Yearly3 Days trial$600.001 Year
One-time1
  • SAT Test Date Access$79.00
3 purchases

Sharp SAT Prep

Subscriptions3
  • Pro Monthly7 Days trial$17.991 Month
  • Pro 3-Month7 Days trial$41.953 Months
  • Pro 6-Month7 Days trial$71.906 Months

Questions

Is Linus free?
Linus is free to download, with in-app purchases available.
Is Sharp SAT Prep free?
Sharp SAT Prep is free to download, with in-app purchases available.
Which has better reviews, Linus or Sharp SAT Prep?
Sharp SAT Prep is rated higher. Linus averages 4.8 out of 5 from 759 ratings, while Sharp SAT Prep averages 4.8 from 45 ratings.
Do Linus or Sharp SAT Prep have ads?
Linus shows ads; Sharp SAT Prep does not.
Which is updated more often, Linus or Sharp SAT Prep?
Linus ships an update every 11 days, and Sharp SAT Prep every 3 weeks. Most recently, Linus was updated on September 22, 2026 and Sharp SAT Prep on September 21, 2026.

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