# Step Gunner — Crush USMLE Step 2 CK > USMLE Step 2 CK study app with spaced repetition, clinical cases, and AI explanations. (iPhone/iPad app by Rezumab LLC.) - Source: https://appshunter.io/ios/app/step-gunner/id6761317357 (this page in markdown: same URL + `.md`) - Developer: [Rezumab LLC](https://appshunter.io/developer/1873578655) - Category: Education, Utilities - Price: Free with in-app purchases - Rating: 4.80/5 from 23 App Store ratings · 11 written reviews indexed - Age rating: 17+ - Requires: iOS 17.0 · 138 MB - Languages: American English - Released: 2026-04-20 - Data updated: 2026-08-25 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/step-gunner/id6761317357/reviews.md ## What is Step Gunner? Step Gunner is a USMLE Step 2 CK study app built by a med student, for med students. Master high-yield content through smart spaced repetition, timed challenges, and AI-powered explanations - all on your iPhone. SMART SPACED REPETITION Our Leitner 5-box system adapts to your performance. Cards you miss come back more often. Cards you master fade into long-term review. Study smarter, not harder. HIGH-YIELD QUESTION BANK - Hundreds of CK-style clinical vignettes - Buzzword flashcards across major organ systems - Next Best Step management questions - NBME-style practice questions - Diagnosis pattern recognition drills BUILT FOR HOW MED STUDENTS ACTUALLY STUDY - XP system with streak bonuses and speed rewards - Daily goals to build consistent study habits - Achievements that track your progress - Weekly leaderboard to compete with classmates - Streak freezes to protect your momentum RAPID FIRE MODE 20 questions, 2 minutes. Simulate exam-day time pressure with a mix of clinical and buzzword cards. AI DEEP DIVE Get instant explanations powered by Apple Intelligence - right on your device, completely private. Choose from 5 modes: Explain More, Why Was I Wrong, Pathophysiology, Mnemonic, and ELI5. STEP GUNNER PRO Unlock the full question bank, unlimited hearts, AI Deep Dive, and every quiz mode with a Pro subscription. Step Gunner is for educational purposes only and is not a substitute for medical education, clinical training, or professional medical advice. Terms of Use: https://stepgunner.com/terms Privacy Policy: https://stepgunner.com/privacy ## Key features - Spaced repetition system - Clinical case simulations - High-yield question bank - Timed challenges - AI-powered explanations - Progress tracking and leaderboards ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Step Gunner Pro Monthly | $9.99 | per month | | Step Gunner Pro Yearly | $79.99 | per year | ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/step-gunner/id6761317357/reviews.md ### 5/5 — Loved the NBS part *2026-08-17* The next best step has been my weakest area and I love how they have such a short questions and the answers include the whole algorithm of treatment . Love it **Developer response:** Amazing!! Thank you for sharing your experience with the NBS section. NBS was one of the areas I struggled with most, and I built this hoping to make it a little easier for the next generation of medical students. I’m so glad you found it helpful. I really appreciate the feedback!! ### 5/5 — Good for extra *2026-08-04* I always run into a problem where I use all my UWorld early and finish my anki cards in my free time. This is super nice for when I am standing around on rotations with no responsibilities, but can’t access my computer to study. **Developer response:** Nice!! ### 5/5 — Fantastic *2026-07-07* Is there a way to review everything in one place? **Developer response:** Just improved the rapid review section to review everything at once and submitted it to the App Store. You should see that button pop up on the Home Screen once it gets approved. ### 5/5 — Best app ever!! *2026-07-06* Best app ever!! Makes me learn the next steps in management of so many high yield presentations in such an efficient manner! So grateful to find an app that is free, easy to use and also use to ensure a laid back learning experience! I am so so grateful to the med student who created this app! **Developer response:** Thank you!! I’m glad you’re enjoying it. ### 5/5 — Need more cards please *2026-07-03* Content is really good as of now and however you may wish, it feels illegal to have all this without any paywall. I would have happily paid for this. Can you please add more cards related to NBMEs and CMS. It will be really helpful for us. Also I don’t mind paying for that if you desire to add it as a premium feature. But need more content real soon as exam is near. **Developer response:** I appreciate the feedback! Working on adding more content. Most likely within 7 days. ### 5/5 — Solid Step 2 studying addon *2026-07-03* It has been extremely helpful for getting into the framing and focus of step 2 studying. High yield concepts. Have gotten me multiple questions on practice tests. Helpful for those who are not keen on the burden on Anki, but do like spaced repetition as well. Overall pretty great. I definitely recommend **Developer response:** Lowering the anki burden was exactly what I had hoped for. Thank you for validating that. ### 5/5 — Nice *2026-06-30* Great app. I’m noticing with the most recent update that I’m getting the same questions a lot and that they don’t seem to get spaced out (ie., they say they go to box 1 each time even if I’ve done them recently). Not sure what’s causing that! **Developer response:** Oh wow, thanks for the feedback. If the spacing out doesn’t work as planned, that can be super annoying. There was a recent change to the algorithm because of a bug that caused box 5 to keep repeating over and over despite it being mastered. Fixing that might have caused this new problem. I’ll get to fixing that today after my rotation and it might require releasing a new version. PS. You can add feedback in the app itself which helps me zero down to the specific problem you’re facing. ### 5/5 — Great app for review *2026-06-25* Honestly wish I’d started it sooner, it’s one of the best ones out there. **Developer response:** Wow! Thanks for the vote of confidence. ### 5/5 — Best Step 2 supplement *2026-06-02* Wish I found this app sooner during 3rd year and only finding this now during dedicated. After doing UW I get so exhausted but this app makes studying so effortless and fun. Highly highly recommend! Super helpful! **Developer response:** Thank you!! ### 5/5 — Nice *2026-06-02* Great app and it helps me get the high yield info but is there a user manual or guide somewhere? I’d like to figure out if I’m using the app right ## Frequently asked questions about Step Gunner ### What is Step Gunner? Step Gunner is a study application designed to help medical students prepare for the USMLE Step 2 CK exam. It utilizes spaced repetition, clinical case simulations, and AI-powered explanations to facilitate learning. ### How does Step Gunner's spaced repetition work? Step Gunner employs a Leitner 5-box system for spaced repetition. This system adapts to your performance, showing you cards you miss more frequently and fading out cards you have mastered into long-term review. ### What is the 'Pimp Me' mode in Step Gunner? The 'Pimp Me' mode (available in Pro) simulates real attending-style clinical case discussions. It guides you through 44 full-arc clinical cases, offering hints and branching scenarios based on your answers. ### Does Step Gunner have ads? No, Step Gunner does not contain advertisements. The app is ad-free, allowing for an uninterrupted study experience. ### What are the AI Deep Dive features in Step Gunner? The AI Deep Dive feature provides instant, private explanations powered by Apple Intelligence. You can choose from modes like 'Explain More,' 'Why Was I Wrong,' 'Pathophysiology,' 'Mnemonic,' and 'ELI5' for deeper understanding. ### How often is Step Gunner updated? The latest version of Step Gunner is 1.9.1, last updated on June 25, 2026. Updates typically include new content, feature enhancements, and bug fixes to improve the study experience. ### What devices is Step Gunner available on? Step Gunner is currently supported on iPhones. It is designed for mobile use, allowing students to study on the go. ### What is the age rating for Step Gunner? Step Gunner has an age rating of 17+. This is due to the advanced medical content and complexity of the USMLE Step 2 CK exam material it covers. ## Version history (last 5 releases) ### 2.1.1 — 2026-08-24 Your projection now shows its track record. Under the readiness gauge you can see how the last ten students who sat Step 2 actually landed against the range the model gave them, miss by miss, including the ones we got wrong. Scores come from students in the app and from r/step2 score reports the model never trained on. It updates every week as more scores come in. A prediction you cannot check is just a guess; this one you can. Also in this update: - Every five-option CK Gold question now explains why each wrong answer is wrong, not just four of them. Nearly a thousand cards updated from a single report - Dozens of card repairs straight from your reports: clearer age ranges, corrected keys, cleaner stems. Reports pay XP, keep them coming - Notifications about your readiness now open straight to the gauge - Groundwork for a faster first look at where you stand after your first round ### 2.1.0 — 2026-08-17 Introducing Round Mix. You asked for more new questions. Now you choose. New First flips every round so questions you have never seen come first, with a short review warm-up to close it out. Balanced keeps the classic review-first pace, now with six new questions in every round instead of three. Find it in Settings, or flip it right from the results screen the moment a round runs review-heavy. Also in this update: - Six new questions per round on Balanced, up from three - A one-tap suggestion after review-heavy rounds so you never feel stuck in your Box 2 pile - Card fixes straight from your reports (croup steroids pearl, asthma guideline context). Reports pay XP, keep them coming - Groundwork for smarter review scheduling and score follow-ups ### 2.0.0 — 2026-08-13 Your Step 2 readiness just became a coach. Step Gunner now turns your practice into a predicted Step 2 score and a real plan to move it. Enter your NBME or self-assessment scores, set your exam date, and your Readiness screen shows where you stand today, your odds for your target specialty, and exactly what to study next. The new coaching layer: Gap to target. See which organ systems are holding your points back, ranked by how much each is worth on the exam, with one tap to drill the exact gap and a projection of the points you stand to gain. NBME Planner. Pick the practice form you have not taken yet, drag a score, and watch your projection respond. The required-score table shows what your next form needs to say for each goal, on your timeline. Honest ranges, never promises. Specialty readiness. See your projected score against the matched-applicant range for your target specialty, plus a plan to reach the median. Your match odds stay free, always. Retention forecast. A forgetting-curve projection of how much you will still remember on test day, which systems fade first, and the daily review dose to hold your gains. Also new: Visual Dx now shows how many images you have seen in each set, not just how many you have mastered. A cleaner, more readable review layout on iPad and large screens. Plus calibration improvements to the predicted score and polish throughout. ### 1.9.8 — 2026-08-08 Study by Rotation is here. Pick the clerkship you are on and study every deck it touches in one cross-deck round, or drill a single deck. Nine rotations, Internal Medicine through Psychiatry, each with a live card breakdown and your mastery at a glance. Star your current rotation and it pins to the top and to your Home screen, so your deck is always one tap away. Review my misses is sharper too. Grind your weakest cards with the ones you just missed first, or drill a single Leitner box at a time. Plus a cleaner rotation view, faster review, and polish throughout. ### 1.9.7 — 2026-08-04 Visual Dx got a full rebuild. Seven decks by modality: CT, Histology, X-ray, Micro, EKG, Derm, and Ultrasound. Go straight to the images you need. Three ways to drill each one: - Vignette: the full clinical stem plus the slide. - Recognize: image only, no stem. See it, name the diagnosis. - Rapid Review: flip cards to train your eye at speed. And we fixed the repeat some of you flagged: Visual Dx now walks you through every distinct image before any comes back, so you get the whole library instead of the same handful. Your predicted Step 2 score, rebuilt. Add an NBME and watch your projection drawn as a real score distribution, with your odds of passing and of hitting your target read right off it. A runway to exam day shows where you are headed, and the number now leans on your most recent NBME so it stays honest. Studying for Step 2? Gun it. ## More apps by Rezumab LLC - [BMI Pathway](https://appshunter.io/ios/app/bmi-pathway/id6760472151) - [ServeFlow: Worship Planner](https://appshunter.io/ios/app/serveflow-worship-planner/id6760845543) All apps by Rezumab LLC: https://appshunter.io/developer/1873578655 ## Related topics [step gunner](https://appshunter.io/ios/topics/step-gunner) --- *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 2026-08-25.*