# Krebs - MCAT Prep Flashcards — Pre Med Study Guide > MCAT prep flashcards with spaced repetition and mastery tracking for pre-med students. (iPhone/iPad app by Michael Kruzich.) - Source: https://appshunter.io/ios/app/krebs-mcat-prep-flashcards/id6778913115 (this page in markdown: same URL + `.md`) - Developer: [Michael Kruzich](https://appshunter.io/developer/1814485890) - Category: Education, Productivity - Price: Free with in-app purchases - Rating: 5.00/5 from 4 App Store ratings · 4 written reviews indexed - Age rating: 12+ - Requires: iOS 18.0 · 18 MB - Languages: American English - Released: 2026-06-19 - Data updated: 2026-07-26 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/krebs-mcat-prep-flashcards/id6778913115/reviews.md ## What is Krebs? Krebs helps pre-med students study smarter for the MCAT with gamified flashcards, spaced repetition, and progress tracking that keeps review simple. Build your daily study streak, master high-yield science topics, and focus on the cards you actually need to review next. Krebs is designed for students who want MCAT prep to feel less overwhelming and more like a clear daily system. Features: • MCAT flashcards for high-yield review • Smart spaced repetition to help you revisit topics at the right time • Gamified progress, XP, streaks, and mastery tracking • Practice across biology, biochemistry, chemistry, physics, psychology, sociology, and CARS • Clean study sessions built for quick review Krebs is an independent study tool and is not affiliated with, endorsed by, or sponsored by the AAMC or the MCAT program. Standard Apple Terms of Use: https://appstoreconnect.apple.com/apps/6778913115/distribution/reviewsubmissions/details/4b8ea9e0-01dd-42e2-92c1-cafd0d3eb37e ## Key features - Smart flashcards - Spaced repetition - Active recall - Mastery tracking - Daily study system - Progress monitoring ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Krebs Pro | $29.99 | per year | | Krebs Pro $19.99 Per Month | $19.99 | per month | | Krebs Pro Yearly - $97 | $97.00 | per year | | Krebs Pro Yearly - $199.99 | $199.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Krebs Pro Lifetime | $699.00 | one-time | ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/krebs-mcat-prep-flashcards/id6778913115/reviews.md ### 5/5 — Best MCAT prep app *2026-06-24* Tried several other MCAT prep study apps and can I say this one is the best by a mile. Krebs is built for gen z . Simple but yet all the tools I need. Really motivates me to study more with the multiplayer mode. Tells me my weaknesses. I could go on and on. Thanks for making this devs ### 5/5 — Cool *2026-06-24* Due to my adhd , it’s hard for me to lock in. This app’s Multiplayer mode helps me study longer because I am able to scratch that competitive itch. Nothing else like it for MCAT prep ### 5/5 — Better than a tutor *2026-06-22* Helped me study for the MCAT so I could take it with confidence. Game changer. ### 5/5 — replaced Anki for me *2026-06-22* Was using anki decks that I found online but just wasn’t absorbing MCAT material until I downloaded this app ## Frequently asked questions about Krebs ### What is Krebs? Krebs is an MCAT prep engine designed for pre-med students. It utilizes smart flashcards, spaced repetition, and active recall to help users study efficiently and track their mastery of MCAT topics. ### How does Krebs help with MCAT studying? Krebs helps students focus on topics needing the most attention by organizing review around their performance. It uses spaced repetition to ensure concepts are reviewed before they are forgotten, strengthening weak areas. ### What subjects does Krebs cover? Krebs covers high-yield MCAT subjects including biology, biochemistry, chemistry, physics, psychology, sociology, and CARS (Critical Analysis and Reasoning Skills). ### Does Krebs offer a free trial? Yes, Krebs offers free trials for its subscription plans. The monthly plan includes a 3-day free trial, the first yearly plan has a 14-day free trial, and the second yearly plan offers a 7-day free trial. ### What are the subscription options for Krebs Pro? Krebs Pro is available with several subscription plans: $19.99 per month, $29.99 per year, and $97.00 per year. There is also a $199.99 per year option. ### Is Krebs available on multiple devices? Yes, Krebs is available for iPhone and iPad, making it accessible for students on the go. ### How often is Krebs updated? The latest version of Krebs is 1.1.2, and it was last updated on June 30, 2026. This indicates a recent update, suggesting active development and maintenance. ### What is the age rating for Krebs? Krebs has an age rating of 12+, making it suitable for high school students and above preparing for standardized tests. ## Version history (last 5 releases) ### 1.1.3 — 2026-07-04 Tabletop multiplayer is live! With Tabletop mode, you can challenge a friend to a MCAT flashcards battle all on one device. This new feature compliments our existing Online Multiplayer mode, "Duel". ### 1.1.2 — 2026-06-30 Thanks for using Krebs, the #1 predictive AI MCAT prep flashcards app to study smarter, study with friends, & discover weaknesses. This version includes minor bug & UI fixes. ### 1.1.1 — 2026-06-28 Thanks for using Krebs, the #1 predictive AI MCAT prep flashcards app to study smarter, study with friends, & discover weaknesses. This version includes minor bug & UI fixes. ### 1.1.0 — 2026-06-26 Thanks for using Krebs, the #1 predictive AI MCAT prep flashcards app to study smarter, study with friends, & discover weaknesses. This version includes minor bug & UI fixes including: • Fixed a bug that could cause the app to freeze on a white screen at launch • You can now edit your study reminders anytime from your Profile • Faster, more reliable sign-in • Performance and stability improvements ### 1.0.8 — 2026-06-24 Thanks for using Krebs, the #1 predictive AI MCAT prep flashcards app to study smarter, study with friends, & discover weaknesses. This version includes minor bug & UI fixes. We also added Duel mode. ## More apps by Michael Kruzich - [TADE: Quit Gooning Now](https://appshunter.io/ios/app/tade-quit-gooning-now/id6745910134) - [Ledgr: Bank Bonus Hunter](https://appshunter.io/ios/app/ledgr-bank-bonus-hunter/id6778529734) All apps by Michael Kruzich: https://appshunter.io/developer/1814485890 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-26.*