# Step Gunner: USMLE Step 2 CK — Med school shelf and NBME prep > USMLE Step 2 CK study app with spaced repetition and AI explanations. (iPhone/iPad app by Rezumab LLC.) - Source: https://appshunter.io/ios/app/step-gunner-usmle-step-2-ck/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 25 App Store ratings · 11 written reviews indexed - Age rating: 17+ - Requires: iOS 17.0 · 176 MB - Languages: American English - Released: 2026-04-20 - Data updated: 2026-11-11 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/step-gunner-usmle-step-2-ck/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 learning system - High-yield question bank - AI-powered explanations - Timed challenges (Rapid Fire Mode) - Progress tracking and leaderboards - Daily study goals ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Step Gunner Pro Monthly | $14.99 | per month | | Step Gunner Pro Yearly | $99.99 | per year | | Step Gunner Pro Monthly | $14.99 | per month | | Step Gunner Pro Yearly | $99.99 | per year | ## Is Step Gunner safe? Not enough ratings yet to assess Step Gunner. ## Is Step Gunner legit? Step Gunner: USMLE Step 2 CK appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Step Gunner is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/step-gunner-usmle-step-2-ck/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 a spaced repetition system, a question bank, and AI-powered explanations to facilitate learning. ### How does Step Gunner's spaced repetition work? Step Gunner employs a Leitner 5-box system. This method adapts to your performance, showing you cards you miss more frequently and gradually reducing the review of cards you have mastered for long-term retention. ### What kind of questions are in Step Gunner's question bank? The question bank includes hundreds of CK-style clinical vignettes, buzzword flashcards across major organ systems, Next Best Step management questions, NBME-style practice questions, and diagnosis pattern recognition drills. ### 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 subscription options for Step Gunner Pro? Step Gunner Pro offers monthly and yearly subscription plans. The monthly plan is $14.99 and includes a 1-month free trial. The yearly plan is $99.99 and includes a 1-year free trial. ### What features are unlocked with Step Gunner Pro? Step Gunner Pro unlocks the full question bank, unlimited hearts, the AI Deep Dive feature, and all quiz modes. This provides comprehensive access to all study tools within the app. ### How often is Step Gunner updated? The latest version of Step Gunner is 3.0, and it was last updated on November 10, 2026. This indicates a recent update, suggesting ongoing development and support for the application. ### Is Step Gunner suitable for younger users? Step Gunner has an age rating of 17+, making it appropriate for older teenagers and adults. This rating reflects the complexity and subject matter of the USMLE Step 2 CK exam preparation. ## Version history (last 5 releases) ### 3.0 — 2026-11-10 A fresh look, and today first. - Today first: your round, your readiness range and your test date in one card at the top of Home. - A new question screen: cleaner cards, the topic shown after you answer, and the why right under your answer. - New moments in a round: bonus XP when you get a question most students miss, and a nod when you fix one you missed before. - Leagues reimagined: see the XP to pass the student above you and to reach the next tier. - Share: send a friend a hard question you got right, or your invite link, from the new top bar. - PRO: Pro members get a gold tag that shines when you open the app. Not on Pro yet? Tap PRO to see what's included. - Refreshed everywhere: Results, Readiness, Profile, Settings, Search, Visual Dx and LFX, in dark and Dawn. - Fixes and polish. ### 2.5 — 2026-11-06 Pick up right where you left off. - Readiness is a climb: your trail rises toward 270, a flag plants at every line you reach, and you can share it. - Resume: close the app mid-round and Home offers the rest when you come back. - Widget: today's reviews and your streak on your Home Screen or Lock Screen. - Dawn: a new light mode with a sunrise sky, softer on the eyes in daylight. Turn it on in Profile. - Fixed: XP from a round you closed the app on, and from an LFX session you closed early, now counts toward your weekly league. - Fixed: invite links keep your code, so friends who join through your link count for you. - Fixed: Buzzwords and Visual Dx cards say what they ask (most likely diagnosis, organism, next best step) instead of a generic label. - Fixed: Path to 270 milestones play again as your score climbs. ### 2.4 — 2026-10-30 Your readiness, turned into a plan. - Today's plan: the Readiness tab opens on what to study today, built from your weakest systems and what Step 2 tests most. The first drill is free every day. - Drill 10: one tap drills 10 cards in a weak system, missed cards first, from Readiness, Home, Profile and the topic breakdown. - Calculator search: type HEART score, CURB-65, anion gap or any of 31 bedside calculators into search and it opens in its ED pathway, ready to run. - An honest number: no projected score until you've answered 50 questions or logged an NBME, a failing NBME no longer reads as passing, practice tests stop counting after 8 weeks, and the range says how sure it is. - After your exam: Readiness shows your real Step 2 score, or asks how it went. Took it early? Set the day, and your score is matched to it. - Pro in one step: sign in with Apple right inside the purchase. - A calmer background behind every screen. - Fixed: Profile and the daily reminder now count CK Gold, and Practice again after a CK Gold topic drill serves CK Gold. ### 2.3 — 2026-10-23 ED Pathways, Score It, and one search for everything. - ED Pathways: pick what walked in (chest pain, sepsis, the febrile infant and 31 more) and click through the workup and management one fork at a time, with doses, bedside scores and the guideline behind every step. Free users open 5 pathways a day; Pro is unlimited. - Score It, a new LFX format: pick the right score, score each criterion, then act on the result. HEART, Wells, CURB-65, Centor, Child-Pugh, Apgar, Bishop and more. - Search everything: one search across Next Best Step pathways, CK Gold, Buzzwords, Dx Buzzwords, Visual Dx, LFX and ED Pathways, with suggestions as you type. - Ward round: no more stopping on steps nobody decides, and "Other paths" shows what happens when the case turns. - LFX: every format on equal footing, highest yield first, following the shelf you pinned. Thresholds get a new "why" sheet. - Differential: see what each clue ruled out, case by case. - Path to 270: when your most likely score first reaches a new milestone, a short clip marks it. - Mnemonics: each slot now offers only options that start with its letter. - Sort into bins: tap the tray itself, and every label shows in full. - Report a problem from anywhere: ED Pathways, lessons and the pathway page now have the report flag. - Fixed: a perfect study-path walk no longer counts as wrong. - Fixed: adding an NBME or UWSA score no longer saves it as your Step 2 result. ### 2.2.11 — 2026-10-17 Search every management pathway, and a ward round that asks at every step. - New search bar on Home: type a diagnosis, an abbreviation or a step (stroke, DKA, massive PE) and see every management pathway in the Next Best Step deck, with the guideline it was checked against. - Walk any pathway you find as a ward round, one case at a time. - The ward round now asks at every step, with wrong options written for that moment in the case instead of borrowed from later in the chain. - LFX has a new look: one style across every format, and the verdict slides up from the bottom. - An item you answered today no longer opens your next LFX session. - LFX from the NEW side now serves only items you have not seen. Due items wait on the REVIEW side. - Have an offer code? Redeem it from the upgrade screen or Settings. - Fixed: the first XP of a new day now counts toward your daily goal. ## Apps similar to Step Gunner | App | Rating | Price | Category | | --- | --- | --- | --- | | [Step2Drill](https://appshunter.io/ios/app/step2drill/id6760366797) | 3.9 (14) | Free | Education | | [Ora - Med School Prep](https://appshunter.io/ios/app/ora-med-school-prep/id6484319369) | 5.0 (9) | Free | Education | | [Mehlman Qbank](https://appshunter.io/ios/app/mehlman-qbank/id6756009026) | 5.0 (7) | Free | Education | | [Board Buddy USMLE](https://appshunter.io/ios/app/board-buddy-usmle/id6756011006) | 4.8 (23) | Free | Education | | [Uncertainty Communication](https://appshunter.io/ios/app/uncertainty-communication/id1460824438) | — | Free | Education | | [Archer Medical Exam Prep](https://appshunter.io/ios/app/archer-medical-exam-prep/id1492019748) | 4.3 (48) | Free | Education | ## 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) - [Premed Gunner: Dominate MCAT](https://appshunter.io/ios/app/premed-gunner-dominate-mcat/id6808061318) 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 2026-11-11.*