RxCalc: Pharmacy Math Prep
NAPLEX-Style Calc Practice
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
56 hand-worked pharmacy math problems across 8 domains, plus a generator that never repeats. Every answer shows a full numbered step-by-step solution.
Pharmacy math, mastered — RxCalc is a calculations-only prep app built by a pharmacy student, for pharmacy students. No therapeutics, no law, no filler — just the math that trips people up on exam day.
EIGHT CORE CALCULATION DOMAINS
Dosage & weight-based dosing, renal function (Cockcroft-Gault), IV flow rates & infusions, dilution & alligation, concentration & percent strength, milliequivalents & osmolarity, TPN & nutrition, and BSA/IBW/unit conversions.
EVERY ANSWER SHOWS ITS WORK
Answer a question and see a full numbered, step-by-step worked solution — not just "the answer is X," but exactly how to get there, every time.
UNLIMITED PRACTICE
A built-in generator produces fresh, never-repeating problems in every domain, so you never run out of practice and never just memorize answers.
TIMED QUIZ MODE
Category-balanced quizzes at real exam pacing (about 90 seconds per question), no feedback until the score screen — just like test day.
SMART REVIEW & PROGRESS
Missed problems land in a review queue until you clear them. Per-domain accuracy, streaks, and a weekly activity chart keep you honest.
— Pay once. No subscription, no ads, no account.
— 100% offline. Your data never leaves your phone.
RxCalc is an independent study tool with original problems written by the developer. NAPLEX is a registered trademark of the National Association of Boards of Pharmacy, which does not endorse this app.
The developer, Karan Kohli, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Karan Kohli
- Size
- 1.4 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Karan Kohli