First Aid for USMLE Step 2 CK
Research answer
What AppTrendKit can say about First Aid for USMLE Step 2 CK today
First Aid for 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
- 5.9.1
- Released
- Feb 22, 2026
- Last updated
- May 20, 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. In-App purchase required to unlock all content. The most comprehensive and up-to-date high-yield review available for the USMLE® Step 2 CK - completely revised and better than ever! Embedded case vignettes reinforce key concepts. A third year medical students. The expert author team (Tao Le and Vikas Bhushan) that guided students to success on the USMLE® Step 1 presents the 10th edition of this skill-sharpening review for the USMLE® Step 2 CK. With an easy-to-follow bulleted presentation of must-know diseases and disorders, this one-of-a-kind study companion offers the most current overview of all core areas on the boards. Included is a host of learning tools, from key facts and mnemonics to full-color illustrations and proven test-taking strategies—everything students need to pass the exam with flying colors. KEY FEATURES - Co-written by students who excelled on the recent exam and reviewed by top faculty - Concise summaries of more than 1,000 commonly tested clinical topics for fast, high-yield study - Key Facts and mnemonics reinforce must-know concepts - Expert coverage of best initial steps in diagnosis and management - Updated Rapid Review section facilitates last-minute cramming - Hundreds of full-color photographs and illustrations - Revised study and test-taking strategies - A completely updated listing of top-rated review sources - A completely revised, in-depth, student-to-student guide to clinical science review and sample examination resources Content licensed from printed ISBN 10: 126044029X Content licensed from printed ISBN 13: 9781260440294 SUBSCRIPTION : Please choose an auto renewable subscription plan to receive content access and continuous updates. Your subscription automatically renews as per your plan, so you always have the latest content. One months auto-renewing payments - $24.99 Three months auto-renewing payments - $32.99 Yearly auto-renewing payments- $49.99 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 and 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 508-299-3000 Privacy Policy - https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions - https://www.skyscape.com/terms-of-service/licenseagreement.aspx https://www.skyscape.com/index/privacy.aspx
Publisher websiteStore creative
Screenshots
Competitive set
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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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