Comparison

Sterile Processing vs HSPT 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

HSPT Prep

Prepare for the High School Placement Test with extensive practice questions and detailed explanations. This app offers personalized study plans, timed modes, and progress tracking to help students build the skills needed for Catholic and private high school entrance exams.

Highlights
  • 750 practice questions
  • Detailed answer explanations
  • Coverage of all five test sections
  • Personalized daily study plans
  • Timed practice modes
  • Progress tracking and score projection
  • Smart review with spaced repetition
Features
Read full description

Ace the HSPT and get into your school. HSPT Prep gives you 750 practice questions with a clear explanation for every single answer, so students build the skills all five sections measure. Built for students preparing for the High School Placement Test used by Catholic and private high schools. WHY IT WORKS The HSPT is a timed placement test, so speed and accuracy matter. Repeated, targeted practice across every section - then reinforcing exactly what you got wrong - is the fastest way to raise a score. - 750 questions written to match the real test's style and difficulty - An explanation on every answer, so each question teaches you something - Full coverage of all five sections: Verbal Skills - Quantitative Skills - Reading (Comprehension & Vocabulary) - Mathematics (Concepts & Problem Solving) - Language Skills STUDY YOUR WAY - Daily Plan that sizes itself to your test date and keeps you on pace - Quick 10 for a fast review after school - Timed Mode to build test-day confidence - Smart Review using spaced repetition to resurface weak spots - Full-Length Practice Test that simulates the real thing - Missed Questions queue so nothing slips through - Custom Quiz to drill any section on demand TRACK YOUR PROGRESS - Score projection that updates as you practice - Accuracy broken down by section - Streaks to keep you consistent - Test-day countdown WHO IT'S FOR Students (and parents) preparing for the HSPT Catholic and private high school placement test. START TODAY Your test date isn't moving. Start a free trial, take your first Quick 10 today, and watch your score projection climb. --- SUBSCRIPTION DETAILS Full access is available through an auto-renewing subscription: A free trial is available for new subscribers. Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Terms of Use: https://hermesdigitalbr-spec.github.io/hspt-legal/terms.html Privacy Policy: https://hermesdigitalbr-spec.github.io/hspt-legal/privacy.html

Screenshots

Sterile Processing4 screens
HSPT Prep3 screens

Verdict

The call

The clearest difference is rating: Sterile Processing at 4.8 against HSPT Prep's 2.5. HSPT Prep's advantage is update cadence (every 10 days vs every 4 months). On price, ratings volume, 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

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 HSPT Prep sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sterile Processing holds the better App Store score, 4.8 against 2.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

Sterile Processing ships an update every 4 months, HSPT Prep every 10 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Sterile Processing versus HSPT Prep: the parameters behind the verdict, then further details
ParameterSterile ProcessingHSPT Prep
PriceFreeFree
Rating4.8 (4 ratings) — better2.5 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better2
Update frequencyEvery 4 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size8 MB9 MB
Age rating4+4+
DeveloperDeeun Inc.Hermes Inteligencia Digital Ltda

Customer experience

Sterile Processing

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

HSPT Prep

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

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
2 purchases

HSPT Prep

Subscriptions2
  • HSPT Prep Weekly$3.997 Days
  • HSPT Prep Monthly3 Days trial$10.991 Month

Questions

Is Sterile Processing free?
Sterile Processing is free to download, with in-app purchases available.
Is HSPT Prep free?
HSPT Prep is free to download, with in-app purchases available.
Which has better reviews, Sterile Processing or HSPT Prep?
Sterile Processing is rated higher. Sterile Processing averages 4.8 out of 5 from 4 ratings, while HSPT Prep averages 2.5 from 2 ratings.
Do Sterile Processing or HSPT Prep have ads?
Neither Sterile Processing nor HSPT Prep shows ads.
Which is updated more often, Sterile Processing or HSPT Prep?
Sterile Processing ships an update every 4 months, and HSPT Prep every 10 days. Most recently, Sterile Processing was updated on November 9, 2026 and HSPT Prep on October 31, 2026.

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