First Aid Q&A USMLE Step 2 CK
Research answer
What AppTrendKit can say about First Aid Q&A USMLE Step 2 CK today
First Aid Q&A USMLE Step 2 CK has no estimate-backed download or gross-consumer-spend figure that meets the public evidence contract yet.
Observed App Store metadata, chart positions, and history are shown below. Missing, non-finite, undefined-currency, or undefined-metric evidence stays missing rather than becoming zero.
Performance intelligence
Observed trajectory and estimates
Store ranks are observations. Downloads and gross store consumer spend are AppTrendKit estimates and only appear when persisted evidence exists.
Estimated downloads · 30D
ModeledNo persisted estimate
The page does not turn missing evidence into zero.
Estimated App Store gross consumer spend · 30D
ModeledNo persisted estimate
The page does not turn missing evidence into zero.
Estimated downloads · 7D
ModeledNo persisted estimate
The page does not turn missing evidence into zero.
Estimated App Store gross consumer spend · 7D
ModeledNo persisted estimate
The page does not turn missing evidence into zero.
Evidence history
Collected daily performance
No daily metric history has been persisted yet.
Rank history
Observed chart positions
Lower rank is better. Only collected observations are shown.
Coverage note
What the ranks mean
A missing rank is not treated as zero downloads or zero revenue. Apple chart feeds are bounded and may return censored or not-ranked observations outside the visible chart depth.
Read the methodStorefront mix
Top countries by estimated contribution
Country estimates are aggregated only after country-level predictions exist.
Monetization
Observed store economics signals
These are listing and product observations. They are not company revenue, subscriber counts, or advertising revenue.
App details
Store metadata
- Version
- 8.4.8
- Released
- Mar 26, 2021
- Last updated
- Mar 30, 2026
- Content rating
- 17+
- Default storefront
- PH
Public IAP observations
Validated in-app purchase prices
Only persisted rows with an explicit public publication boundary are shown. Missing price, currency, country, or date values stay unknown.
Listing detail
What the store says
"Try before you buy" - Download the FREE App, which includes sample content. An in-App purchase is required to unlock all content. First Aid Q&A For The USMLE Step 2 CK provides mobile healthcare practitioners with the latest in trusted clinical information for more accurate, confident and informed decision-making at point-of-care. Prepare to ace the USMLE Step 2 CK with First Aid Q&A for the USMLE Step 2 CK. The new second edition of this student-proven book features 1000 board-style questions along with easy to navigate, high-yield explanations of correct and incorrect answers. You'll also find hundreds of valuable images, diagrams, and tables. The book is correlated with First Aid for the USMLE Step 2 CK and First Aid Cases for the USMLE Step 2 CK for the ultimate review package! KEY Features: * 1000 board-style questions and answers from the top-rated USMLERx Qmax Step 2 CK Test Bank * Concise, yet complete, explanations for both correct and incorrect answers ñ- with letter options in boldface for at-a-glance review * One complete practice test -- 8 full-length test blocks -- simulate the exam experience * Hundreds of high-yield images, diagrams, and tables * Organized the same way as First Aid for the USMLE Step 2 CK so you can simultaneously study from both books No internet connection is required to access the content after the initial download. Find information quickly using powerful SmartSearch technology. Search part of term for those hard to spell medical terms. Content licensed from printed ISBN 10: 0071625712 Content licensed from printed ISBN 13: 978-0071625715 SUBSCRIPTION : Please choose an auto renewable subscription plan to receive content access & continuous updates. Your subscription automatically renews as per your plan, so you always have the latest content. Yearly auto-renewing payments - $54.99 Three month auto-renewing payments - $34.99 One month auto-renewing payments - $26.99 Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscription may be managed by the user & auto-renewal can be disabled at any time by going to your device “Settings” and tapping “iTunes & App Store”. Any unused portion of a free trial period will be forfeited when you purchase a subscription, where applicable. If you have any questions or comments, email us any time: customersupport@skyscape.com or call 508-299-30000 Privacy Policy-https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions-https://www.skyscape.com/terms-of-service/licenseagreement.aspx Editor(s): Tao Le, Kristen Vierregger Publisher: The McGraw-Hill Companies, Inc.
Publisher websiteStore creative
Screenshots
Competitive set
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Deterministic links to real stored apps matched by category, publisher, and comparable performance bands.
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Methodology and provenance
Read every number with its evidence
Metadata source: Apple iTunes Search API; observed Sep 7, 2026, 8:39 PM.
Rankings: collected chart positions from the listed storefront. Missing ranks are not zeros.
Economics: downloads and gross store consumer spend are estimated, not official Apple or publisher figures.
Model: No persisted model version.
Confidence: —; intervals widen when evidence or history is limited.
Last observation: Sep 7, 2026, 8:39 PM.
See how AppTrendKit separates observations, estimates, coverage, and confidence.
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