RxShift vs RxCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RxShift
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RxShift helps turn calculation anxiety into confidence through interactive pharmacy calculation challenges. Practice ICU calculations, TPN exercises, sterile compounding scenarios, and pharmacy math missions designed for learners preparing for pharmacy licensing exams. Built for learners preparing for: • NAPLEX® (USA) • PEBC® (Canada) • OPRA™ (Australia) • GPhC (UK) • and similar pharmacy licensing exams Inside RxShift: ICU Calculations Practice critical care calculation scenarios and strengthen your problem-solving skills. TPN Lab Build TPN formulations while balancing calories, protein, fluids, electrolytes, and formulation limits. Sterile Compounding Learn sterile preparation concepts and calculation workflows through guided scenarios. Dose Detective Solve pharmacy calculation challenges and review medication-related calculations. Codes & Conversions Master pharmacy math including mg ↔ mcg, mEq, units, dosage calculations, IV calculations, and weight-based dosing. Progress System Earn XP, unlock ranks, complete missions, and track your progress over time. RxShift is built around active learning. Instead of memorizing formulas, learners practice through challenges, scenarios, and interactive calculation exercises. Whether preparing for licensing exams or strengthening pharmacy calculation skills, RxShift provides a structured and engaging way to practice essential pharmacy calculations. Learn through challenges. Build confidence. RxShift is an independent educational application designed for learning and exam preparation. It does not provide medical advice, patient-specific recommendations, clinical decision support, or healthcare services. RxShift is not affiliated with, endorsed by, or created by NAPLEX®, PEBC®, OPRA™, GPhC, or any examination organization.
RxCalc
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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.
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Verdict
The clearest difference is price: RxShift at Free against RxCalc's $2.99. RxShift also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). RxCalc's advantage is chart position (#170 vs unranked). On ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
RxShift is free to download; RxCalc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | RxShift | RxCalc |
|---|---|---|
| Price | Free — better | $2.99 |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Best chart rank | — | #170 — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 63 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | Ahmet Bosnak | Karan Kohli |
In-app purchases
RxShift
No in-app purchases
RxCalc
No in-app purchases
Questions
Is RxShift free?
Is RxCalc free?
Do RxShift or RxCalc have ads?
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