Comparison

Sterile Processing vs CRCST Sterile Processing Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sterile Processing

Prepare for the CRCST exam with practice questions, instrument identification drills, and study guides. Plan your study routine, track progress, and review core sterile processing topics. Offers a free experience with optional monthly, annual, or lifetime subscriptions for full access.

Highlights
  • 320 practice questions
  • Instrument identification drill
  • Daily study tasks
  • Five study guides
  • 24 flashcards
  • Progress tracking
Features
Read full description

Build a focused study routine for the CRCST exam with Sterile Prep. PRACTICE AND UNDERSTAND Work through 320 practice questions covering sterile processing topics. Review answer explanations, bookmark questions and return to your saved practice session. LEARN YOUR INSTRUMENTS Use the interactive instrument-identification drill to review surgical instruments and their uses. PLAN YOUR STUDY Set an exam date, follow daily study tasks and review progress across the app's study areas. These indicators reflect your in-app activity, not a predicted exam score. REVIEW THE FUNDAMENTALS Explore five study guides and 24 flashcards covering core sterile processing topics. Use the wrapping guide, tray assembly checklists and sterilization reference as educational aids. CHOOSE YOUR ACCESS Try the free experience before purchasing Pro. Monthly and annual subscriptions and a lifetime purchase are offered in the app. Apple displays your local price and any eligible introductory offer before you confirm. Subscriptions renew automatically unless canceled through your Apple Account. Restore eligible purchases from Settings. This release focuses on CRCST study. It does not provide separate CIS, CER, CSIS or CSPDT question banks. Study questions, instrument names and reference material are in English; selected app controls also support Spanish. EDUCATION ONLY This app is an independent study aid, not clinical guidance, a sterilizer controller or a validated quality-management system. Always follow the device manufacturer's current instructions for use and your facility's policies. It is not affiliated with or endorsed by HSPA, CBSPD, AAMI or any healthcare facility. CRCST is a trademark of HSPA. No exam result is guaranteed. Support: https://www.voltexam.com/support Privacy: https://www.voltexam.com/privacy Terms: https://www.voltexam.com/terms

About

CRCST Sterile Processing Prep

Prepare for the CRCST sterile processing exam with over 1,300 practice questions and detailed explanations. Includes timed exams, flashcards, and study notes to reinforce learning across all seven content areas. Study offline and track your progress to build confidence for certification.

Highlights
  • 1,393 practice questions
  • Explanations for answers
  • Timed practice exams
  • Wrong-answer review
  • Study notes and flashcards
  • Offline study capability
Features
Read full description

Practice for the CRCST sterile processing exam with 1,393 original questions across all seven content areas. Built for Central Service / Sterile Processing & Distribution (SPD) technicians, with explanations that help you review why an answer is correct and why the other options are not. WHAT YOU GET • 1,393 practice questions across all 7 CRCST content areas: – Cleaning, Decontamination & Disinfection – Preparation & Packaging – Sterilization Process – Departmental Considerations – Sterile Storage, Transport & Inventory Management – Professional Development & Human Relations – Patient Care Equipment & Distribution • Explanations for the correct answer and the other choices • Timed practice exams: 150 questions in 180 minutes, drawn from the bank using the seven content-area weights • Wrong-answer review to revisit questions you missed • 42 study notes and 430 flashcards for topic-by-topic review • An optional setup flow with a sample question, explanation, exam-date choice and daily study-time goal • A free CRCST exam guide with links to HSPA requirements and resources LEARN THE REASONING Review sterile processing concepts from cleaning and decontamination through preparation, packaging, sterilization, storage and distribution. Questions cover steam, ethylene oxide and hydrogen-peroxide sterilization, biological and chemical indicators, instrument handling, inventory and patient care equipment. Read an explanation, revisit a study note, then practice the topic again. BUILD YOUR STUDY ROUTINE Choose an exam date and daily study time, or skip setup and start practicing. Use topic practice for a focused session and flashcards for quick recall. Track your own practice progress by area and return to missed questions. These results describe your work in the app; they do not predict your certification result. PRACTICE EXAM PACING Use the timed mock to work through a longer session. The app's 70% practice target is not an official passing score. HSPA does not report a percentage score, and practice accuracy is not an official exam score or a guarantee of passing. TRY THE FREE PREVIEW Try five questions in each content area, a flashcard sample and the free exam guide before deciding whether to unlock more. No app account or signup is required. The optional sample during setup includes an explanation so you can see the learning approach. ONE-TIME UNLOCK A one-time in-app purchase unlocks full practice access. There is no monthly subscription or auto-renewing fee. Use Restore Purchases when needed with the Apple account used for the original purchase. Prices are shown in the app before purchase. STUDY OFFLINE Questions, explanations, notes and flashcards are included for offline study. Purchases, restoring access, content updates, sending a report and opening external links require an internet connection. Your study progress is saved on your device. KNOW THE CERTIFICATION PATH CRCST certification requires passing the exam and documenting 400 hours of qualifying hands-on experience. A provisional route permits taking the exam before completing those hours. This app supports knowledge practice; it does not provide workplace hours or award certification. Confirm current eligibility, application and renewal requirements with HSPA. Official requirements and exam information: https://myhspa.org/certification/certification-overview/certified-registered-central-service-technician-crcst/ INDEPENDENT STUDY RESOURCE This app is not affiliated with, endorsed by or sponsored by HSPA, IAHCSMM or CBSPD. CRCST and other exam or organization names belong to their respective owners and are used descriptively. Practice questions and explanations are original study material, not actual, past or recalled exam questions. Practice results do not guarantee a passing exam result.

Screenshots

Sterile Processing4 screens
CRCST Sterile Processing Prep4 screens

Verdict

The call

The clearest difference is rating: CRCST Sterile Processing Prep at 5.0 against Sterile Processing's 4.8. CRCST Sterile Processing Prep also leads on update cadence (every 2 months vs every 4 months). Sterile Processing's advantage is ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sterile Processing sells 3 in-app purchases, starting at $9.99 per month and CRCST Sterile Processing Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

CRCST Sterile Processing Prep holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Sterile Processing ships an update every 4 months, CRCST Sterile Processing Prep every 2 months. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Sterile Processing versus CRCST Sterile Processing Prep: the parameters behind the verdict, then further details
ParameterSterile ProcessingCRCST Sterile Processing Prep
PriceFreeFree
Rating4.8 (4 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS17.016.4 — better
Further details — not scored
Size8 MB48 MB
Age rating4+4+
DeveloperDeeun Inc.Splendid Labs

Customer experience

Sterile Processing

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CRCST Sterile Processing Prep

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Sterile Processing

Subscriptions2
  • Pro - Monthly3 Days trial$9.991 Month
  • Prep Pro Annual$29.991 Year
One-time1
  • Pro - Lifetime Access$59.99
1 purchases

CRCST Sterile Processing Prep

One-time1
  • CRCST Premium Lifetime$24.99

Questions

Is Sterile Processing free?
Sterile Processing is free to download, with in-app purchases available.
Is CRCST Sterile Processing Prep free?
CRCST Sterile Processing Prep is free to download, with in-app purchases available.
Which has better reviews, Sterile Processing or CRCST Sterile Processing Prep?
CRCST Sterile Processing Prep is rated higher. Sterile Processing averages 4.8 out of 5 from 4 ratings, while CRCST Sterile Processing Prep averages 5.0 from 1 ratings.
Do Sterile Processing or CRCST Sterile Processing Prep have ads?
Neither Sterile Processing nor CRCST Sterile Processing Prep shows ads.
Which is updated more often, Sterile Processing or CRCST Sterile Processing Prep?
Sterile Processing ships an update every 4 months, and CRCST Sterile Processing Prep every 2 months. Most recently, Sterile Processing was updated on November 9, 2026 and CRCST Sterile Processing Prep on November 6, 2026.

Other comparisons