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2026 Comparison · HSPA CRCST

Best Sterile Processing Exam Prep App in 2026

Updated October 2026

Disclosure: VoltExam is our product. We wrote this comparison, so weigh it accordingly. Competitor facts were checked on each provider's own page on 2026-10-16 and are linked below; where a provider does not publish a number, we leave it out.

Short answer: Start with HSPA's own Sterile Processing Technical Manual (eBook $69 for members, $79 otherwise). To drill questions, VoltExam Sterile Prep offers 450+ CRCST practice questions on iOS and Android, plus web plans from $9.99/month. If you are starting from zero and want a course with the exam voucher included, ed2go's program is the better fit.

How we compared

  • Alignment with HSPA's current CRCST content outline and the 9th edition textbook.
  • Whether it teaches (textbook, course) or only drills (practice questions).
  • Price and access length as published on the provider's own page.
  • Question count, only where the provider publishes one.
  • Extras that matter for CRCST: exam voucher, clinical-experience help, platforms.

About the HSPA CRCST exam

  • 150 questions (125 scored, 25 pretest), 3 hours.
  • Multiple choice · computer-based at a Prometric testing center. Exam fee: $140.
  • Passing score: Pass/fail on scored questions answered correctly — HSPA does not publish a percentage.
  • 400 hands-on hours within 5 years, or within 6 months of passing for provisional certification; 12 CE credits a year to keep it.
  • Content outline: Departmental Considerations 15%; Cleaning, Decontamination and Disinfection 21%; Preparation and Packaging 21%; Sterilization Process 21%; Sterile Storage, Transport and Inventory Management 9%; Patient Care Equipment and Distribution 5%; Professional Development and Human Relation Skills 8%.

Official sources: Healthcare Sterile Processing Association — CRCST certification · CRCST content outline (PDF)

VoltExam Sterile Prep (our product)

What you get

  • 450+ CRCST practice questions covering decontamination, sterilization, sterile storage and the other content areas.
  • Sterilization parameter reference (temperature, time and pressure by method).
  • Native app on iOS and Android, with full offline study and per-topic progress tracking.
  • Web: free to start; $9.99/month, $24.99/year or $59.99 lifetime. Every web plan unlocks all 44 trades.

Where it falls short

  • Not a textbook or course — use it alongside the HSPA Technical Manual.
  • No exam voucher and no clinical-experience placement.
  • A practice score is not an HSPA result or a prediction of one.
CRCST exam guideFree CRCST practice testApp details

The alternatives, and when each is the better fit

Official HSPA self-study textbook

HSPA — Sterile Processing Technical Manual (9th edition)

  • eBook $69 (HSPA members) / $79 (non-members), a two-year subscription usable on up to three devices.
  • Print textbook $80 / $90; print workbook $55 / $60; boxed course (textbook + workbook) $120 / $135.
  • HSPA states it does not offer a CRCST course; it offers publications for self-study.

Better fit when: Always — this is the primary text HSPA publishes. A practice app like VoltExam supplements it; it does not replace it.

Source: https://myhspa.org/education/publications/sterile-processing-technical-manual/

Self-study course

Purdue University Online — Sterile Processing Technical Training

  • Self-paced course built on the 9th edition curriculum, with up to one year to finish.
  • Includes six progress tests and a final exam, plus online videos and quizzes.
  • Tuition is not shown on the course information page; it does not provide the 400 hands-on hours.

Better fit when: You want a structured, graded course that follows the HSPA textbook chapter by chapter.

Source: https://www.eventreg.purdue.edu/info/sterile-processing/default.aspx

Online instructor-supported course

ed2go via CSU San Bernardino — Sterile Processing Technician (Voucher Included)

  • $2,895.00 (list price $3,390.00).
  • Includes a voucher for the HSPA CRCST exam once you are eligible.
  • Offers an opportunity to take part in a clinical experience; placement is not assured.

Better fit when: You are starting from zero and want a full course, instructor support and the exam voucher bundled together.

Source: https://careertraining.csusb.edu/training-programs/sterile-processing-technician-voucher-included

iOS app

CRCST Exam Prep 2027 (Md Tariqul Islam)

  • Free to download; in-app subscriptions listed at $9.99/week, $29.99/month or $59.99/year.
  • Listing advertises 1300+ CRCST practice questions.
  • iPhone, iPad and Mac (plus Apple Vision).

Better fit when: You want the larger advertised question count and don't mind a subscription.

Source: https://apps.apple.com/us/app/-/id6754762418

iOS app

Sterile Processing Test Bank (Tourkia CHIHI)

  • $3.99 paid app; no in-app purchases listed.
  • Listing does not state a question count.
  • iPhone and iPad (plus Apple silicon Macs and Apple Vision).

Better fit when: You want the lowest one-time price for a quick concept review.

Source: https://apps.apple.com/us/app/-/id1107261076

Try VoltExam CRCST practice

Free to start on the web. No card needed to begin.

Start CRCST practiceUnlock web access

Web access works in your browser. Native iOS and Android apps are separate purchases for offline mobile study.

Frequently Asked Questions

What is the best app for the CRCST exam?

There is no single best choice for everyone. HSPA's Sterile Processing Technical Manual is the core text, and HSPA says it does not run a CRCST course. For question practice, VoltExam Sterile Prep has 450+ CRCST questions on iOS and Android with offline study; CRCST Exam Prep 2027 advertises 1300+ questions on a $9.99/week to $59.99/year subscription. VoltExam is our product.

How many questions are on the CRCST exam?

HSPA lists 150 multiple-choice questions (125 scored, 25 unscored pretest) with a 3-hour limit, taken at a Prometric testing center. HSPA does not publish a percentage passing score.

Does a CRCST prep app replace the 400 hands-on hours?

No. HSPA requires 400 hours of hands-on sterile processing experience within 5 years (or within 6 months of passing, for provisional certification). No app or online course provides those hours; some courses, like ed2go's, offer a chance at a clinical experience, with placement not assured.

Sources (checked 2026-10-16)

  1. HSPA — Sterile Processing Technical Manual (9th edition): https://myhspa.org/education/publications/sterile-processing-technical-manual/
  2. Purdue University Online — Sterile Processing Technical Training: https://www.eventreg.purdue.edu/info/sterile-processing/default.aspx
  3. ed2go via CSU San Bernardino — Sterile Processing Technician (Voucher Included): https://careertraining.csusb.edu/training-programs/sterile-processing-technician-voucher-included
  4. CRCST Exam Prep 2027 (Md Tariqul Islam): https://apps.apple.com/us/app/-/id6754762418
  5. Sterile Processing Test Bank (Tourkia CHIHI): https://apps.apple.com/us/app/-/id1107261076
  6. HSPA support — Does HSPA offer a course for the CRCST?: https://support.myhspa.org/hc/en-us/articles/360052846132-Does-HSPA-offer-a-course-for-the-CRCST
  7. Healthcare Sterile Processing Association — CRCST certification: https://myhspa.org/certification/certification-overview/certified-registered-central-service-technician-crcst/

Prices and listings change. Confirm on the provider's page before you buy. VoltExam facts come from our own app catalog and pricing. Other providers' names are used only to identify their products.