Apps / Sterile Prep
Sterile Prep
MedicalLive on App StoreSterile Prep is an iOS app for the HSPA CRCST sterile processing certification exam — it includes 1,000+ practice questions covering all 6 CRCST domains (decontamination, assembly, sterilization, storage, safety, and management), plus a built-in sterilization parameter reference, for $17.99 with lifetime access, no subscription, works offline.
iOS · Free to download · $17.99 one-time unlock
Why Sterile Prep?
Sterilization Reference
Sterilization parameter reference covering temperature, time, and pressure for all methods
1,000+ Practice Questions
1,000+ CRCST exam questions covering decontamination, sterilization, and sterile storage
Works Offline
Full offline access — study at the hospital or clinic without Wi-Fi
Progress Tracking
Per-topic progress tracking across all HSPA CRCST certification exam content areas
How It Works
Step 01
Download Free
Free to download on the App Store — unlock everything once for $17.99.
Step 02
Practice Daily
Built-in calculators you'll use on the job — not just quizzes.
Step 03
Pass First Try
$17.99 once. No subscriptions. No recurring fees.
Pricing
VoltExam
$17.99one-time
- ✓ Pay once, use forever
- ✓ No monthly fees
- ✓ Full offline access
- ✓ All updates included
Competitors
$20+/month
- ✕ Subscription required
- ✕ Lose access if you cancel
- ✕ Often requires Wi-Fi
- ✕ $240+ per year
Trusted by Tradespeople
“Passed my CRCST on the first attempt. The sterilization reference made the parametric release questions easy.”
— Ashley N., SPD Tech, Ohio
“The decontamination questions are tough, just like the real exam. That's exactly what you want for prep.”
— Carmen L., Sterile Processing Tech, Illinois
Frequently Asked Questions
What exam do I need to become a sterile processing technician?
The most widely recognized certification is the CRCST (Certified Registered Central Service Technician) offered by IAHCSMM. Other certifications include CSPDT (CBSPD) and HSPA certifications. Many hospitals require the CRCST within 18 months of hire.
How many questions are on the CRCST exam?
The CRCST exam has 150 questions (125 scored + 25 unscored pretest). You have 3 hours to complete it. A passing score is 75% on the scored portion. The exam covers decontamination, assembly, sterilization, sterile storage, and distribution.
What topics are tested on the CRCST exam?
Topics include decontamination processes and cleaning methods, instrument assembly and tray preparation, sterilization methods (steam, EO, VHP, dry heat), biological and chemical indicators, sterile storage and distribution, and quality assurance. Sterilization methods are the highest-yield area.




