DocUs: USMLE App Blocker
Answer a question, then scroll
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
DocUs turns the moment you reach for your phone into Step 1 practice.
Pick the apps that pull you away. When you open one, DocUs asks you a single USMLE-style question first. Answer it right and the app unlocks for the time you chose (5, 15 or 30 minutes). Get it wrong and you read the explanation, take a short break, and try another.
WHAT YOU GET
• 500+ Step 1 multiple-choice questions with full explanations, across 15 subjects
• Questions you miss come back sooner; ones you know wait days (spaced repetition)
• More questions from the subjects you're weakest in
• Streaks, a streak calendar and stats by subject
• One emergency skip a day, for when you really need your phone
HOW IT WORKS
DocUs uses Apple's Screen Time to block the apps you choose. You need to allow Screen Time access once. DocUs never sends anywhere which apps you picked, and never sees what you do in them: Apple gives it tokens, and app names appear only on the block screen on your iPhone.
PRIVATE BY DESIGN
No account. No ads. No tracking. Your study history is saved on your iPhone. Usage data with a random ID (no name or email) helps improve DocUs; it's on by default and you can turn it off in Settings.
SUBSCRIPTION
DocUs requires a subscription: $79.99 per year or $14.99 per month (prices may vary by country). Payment is charged to your Apple ID at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → [your name] → Subscriptions.
Terms of Use: https://docus.themartian.app/terms
Privacy Policy: https://docus.themartian.app/privacy
Questions adapted from ScholarRx Bricks (exchange.scholarrx.com), licensed CC BY-SA 4.0. ScholarRx does not endorse DocUs. DocUs is a study aid, not medical advice.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improved diagnostics for subscription purchases and restores to help investigate interrupted checkouts. Receipts and Apple transaction IDs stay on your device. You can turn usage sharing off in Settings.
The developer, Jerry Fanelli, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jerry Fanelli
- Size
- 6.4 MB
- Category
- Education
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
Infrequent
Alcohol, Tobacco, Drug Use or References
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- DocUs Monthly $14.99
- DocUs Yearly $49.99
- DocUs Yearly $79.99
- Copyright
- © 2026 Jerry Fanelli