Zero Deficit is a CCRN exam prep app designed for critical care nurses preparing for the AACN Adult CCRN certification. Whether you're working night shift in the ICU, studying between travel assignments, or carving out time after long days on the floor, the goal is to fit serious test prep into the realities of bedside nursing.

📚 WHAT'S INSIDE
• 695+ CCRN practice questions covering body systems on the AACN exam blueprint — Cardiovascular, Pulmonary, Endocrine, Hematology, GI, Renal, Integumentary, Musculoskeletal, Neurological, Multisystem, plus Behavioral, Psychosocial, and Professional Caring & Ethical Practice

• 9 in-depth study guides written for working nurses, with rationales explained the way a preceptor would explain them

• 150-question final exam simulations with timer and scoring to mirror the real testing experience

• AI question generator — type any topic you want to drill (sepsis bundles, vasopressor titration, hemodynamics, ABG interpretation, anything else) and get fresh practice questions on demand

• Spaced repetition flashcards based on cognitive science research

• Daily Challenge mode for quick, focused practice sessions

• Topic deep-dives on high-yield material like Shock and Vasopressors, Vasoactive Medications and Receptor Pharmacology, and Sepsis Management

🔥 BUILD A STUDY STREAK THAT FITS REAL ICU LIFE
Track daily progress with a streak system that recognizes every login, quiz attempt, and flashcard review. When a streak is at risk of breaking, gentle reminders include a one-tap shortcut to a quick 5-minute quiz, so a hectic shift doesn't mean lost progress.

🩺 BUILT WITH ICU EXPERIENCE IN MIND
Every feature came from feedback during the stressful weeks leading up to exam day. The team understands what it's like to wrap a 12-hour shift and still need a study session before bed. The app is designed to respect your time and meet you where you are.

📄 PRINTABLE STUDY GUIDES
Save any study guide as a clean, watermarked PDF formatted for review on the go — print it, save it to your tablet, or annotate it with a pen during long shifts.

🎓 WHO IT'S FOR
• Registered nurses preparing for AACN CCRN certification
• CVICU, MICU, SICU, NSICU, CCU, and PICU staff
• ER nurses transitioning into critical care
• Travel nurses studying between assignments
• Nurse leaders maintaining clinical credentials
• Nurses pursuing related certifications including PCCN, CSC, CMC, TCRN, and CEN

💰 PRICING & FREE ACCESS
• 3-day free trial with full feature access
• Monthly subscription: $14.99/month — cancel anytime
• Annual subscription: $84.99/year — significant savings vs monthly
• Lifetime access: $199.99 one-time payment with no recurring charges

After the free trial ends, your subscription auto-renews at the price you selected. You can cancel anytime in your device's Subscriptions settings at least 24 hours before renewal to avoid being charged. Without a subscription, you still get free access to study guide samples, 10-question body-system practice quizzes, and topic deep-dives.

🔬 LEARNING APPROACH
Spaced repetition. Adaptive difficulty. On-demand AI question generation on any topic you choose. Rather than throwing random questions at you, the app uses evidence-based learning principles to make every minute of study time count.

🛡 PRIVACY & SECURITY
• No advertisements
• Study data stays private to your account
• HIPAA-aware design — questions and content reference clinical scenarios only, never real patients
• GDPR and CCPA compliant
• Encrypted cloud sync across iPhone, Android, and web

⚖ LEGAL
Privacy Policy: zerodeficitccrnprep.com/privacy-policy
Terms of Service: zerodeficitccrnprep.com/terms
Subscription Terms: zerodeficitccrnprep.com/subscription

CCRN® is a registered trademark of the American Association of Critical-Care Nurses (AACN). Zero Deficit is an independent study resource and is not affiliated with or endorsed by AACN.

Study smart. Take care of yourself.
— The Zero Deficit Team