Comparison

ORninja vs CST Surgical Tech Prep

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

Head to head
About

ORninja

This app provides a digital library of surgical instruments for training operating room support staff. It allows users to learn instrument names and functions at their own pace, and virtually assemble instrument trays for surgical procedures.

Highlights
  • Digital library of surgical instruments
  • Learn instrument names and functions
  • Virtual instrument tray assembly
  • Self-paced learning
  • Training for OR support staff
Features
Read full description

The future of operating room education is here. ORninja is a premium, modern learning platform built for anyone in scrubs. Using interactive, bite-sized learning based on today’s educational best practices, ORninja replaces boring PowerPoints and training videos with engaging experiences that improve knowledge retention. Whether you’re learning instrumentation, implants, anatomy, surgical procedures, or OR workflow, ORninja helps you build confidence before every case. Are you a sales rep, scrub tech, resident, RN, or do you work in Central Sterile or anywhere in the OR? Then ORninja is for you. Access is available exclusively through participating employers, hospitals, healthcare organizations, medical device companies, and educational institutions. An organization-issued account is required.

About

CST Surgical Tech Prep

Prepare for your Certified Surgical Technologist (CST) exam with a comprehensive question bank. It offers detailed explanations for each answer, personalized study plans, and progress tracking to build confidence for exam day.

Highlights
  • 2,275 board-style practice questions
  • Detailed explanations for every answer
  • 13 full subjects covering the CST blueprint
  • Daily Plan, Quick 10, Timed Mode, Smart Review
  • Full-Length Mock Exam
  • Progress tracking with pass probability
  • Customizable quizzes
Features
Read full description

Walk into your CST exam ready. Surgical Tech CST Exam Prep gives you 2,275 board-style practice questions with a clear explanation for every single answer, so you don't just memorize the right choice - you understand why it's right and why the others are wrong. Built for surgical technologists preparing for the NBSTSA certification. WHY IT WORKS Passing isn't about cramming. It's about repeated, targeted practice across every domain the exam tests - then reinforcing exactly what you got wrong until it sticks. - 2,275 questions written to match the real exam's style and difficulty - An explanation on every answer, so each question teaches you something - 13 full subjects covering the entire CST blueprint: Sterile Technique & Asepsis - Surgical Instruments - Perioperative Patient Care & Positioning - Anesthesia - Pharmacology & Hemostasis - Counts, Specimens & Documentation - Microbiology & Infection Control - Sterilization & Disinfection - Sutures, Needles & Wound Healing - General & GI Surgery - OB/GYN & Genitourinary - Orthopedic, Neuro, Cardiovascular & Plastic - Professional Roles, Ethics & Safety STUDY YOUR WAY Fit prep into a 12-hour shift or a quiet weekend - your call. - Daily Plan that sizes itself to your exam date and keeps you on pace - Quick 10 for a fast review between cases - Timed Mode to build exam-day speed and stamina - Smart Review using spaced repetition to resurface weak spots before you forget them - Full-Length Mock Exam that simulates the real thing end to end - Missed Questions queue so nothing slips through - Custom Quiz to drill any subject or weak area on demand TRACK YOUR PROGRESS Know exactly where you stand before exam day. - Pass probability that updates as you practice - Accuracy broken down by subject so you study what actually moves the needle - Streaks to keep you consistent - Exam countdown that keeps the date front and center WHO IT'S FOR Surgical technology students, scrub techs, and OR professionals sitting for the NBSTSA certification - whether you're testing for the first time or recertifying and want a confidence check. START TODAY Your exam date isn't moving. Start a free trial, take your first Quick 10 today, and watch your pass probability climb. Thousands of explained questions, one clear goal: walk in ready. --- 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.github.io/surgicaltech-legal/terms.html Privacy Policy: https://hermesdigitalbr.github.io/surgicaltech-legal/privacy.html

Screenshots

ORninja4 screens
CST Surgical Tech Prep3 screens

Verdict

The call

The clearest difference is review sentiment: CST Surgical Tech Prep at 100% against ORninja's 21%. CST Surgical Tech Prep also leads on rating (5.0 vs 2.3). ORninja's advantage is in-app purchases (none vs 3) and update cadence (fortnightly vs every 2 months). On price, ads and device support 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. CST Surgical Tech Prep sells 3 in-app purchases, starting at $5.99 per 7 days. ORninja asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CST Surgical Tech Prep holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: ORninja has 25 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 21% of ORninja's written reviews are positive against 100% of CST Surgical Tech Prep's.

UpkeepUpdate frequency

ORninja ships an update fortnightly, CST Surgical Tech Prep every 2 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard7 real differences · 3 level
ORninja versus CST Surgical Tech Prep: the parameters behind the verdict, then further details
ParameterORninjaCST Surgical Tech Prep
PriceFreeFree
Rating2.3 (25 ratings)5.0 (1 ratings) — better
Positive reviews21.4% of reviews100.0% of reviews — better
Number of ratings25 — better1
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size51 MB32 MB
Age rating12+4+
DeveloperNinja Solutions IncorporatedHermes Inteligencia Digital Ltda

Customer experience

ORninja

All ratings25 ratings
Positive32.0%
Neutral0.0%
Negative68.0%
Written reviews14 reviews
Positive21.4%
Neutral0.0%
Negative78.6%

CST Surgical Tech Prep

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ORninja

No in-app purchases

3 purchases

CST Surgical Tech Prep

Subscriptions3
  • CST Prep Pro Weekly3 Days trial$5.997 Days
  • CST Prep Pro Monthly3 Days trial$14.991 Month
  • Quarterly3 Days trial$29.993 Months

Questions

Is ORninja free?
ORninja is free to download, with no in-app purchases.
Is CST Surgical Tech Prep free?
CST Surgical Tech Prep is free to download, with in-app purchases available.
Which has better reviews, ORninja or CST Surgical Tech Prep?
CST Surgical Tech Prep is rated higher. ORninja averages 2.3 out of 5 from 25 ratings, while CST Surgical Tech Prep averages 5.0 from 1 ratings.
Do ORninja or CST Surgical Tech Prep have ads?
Neither ORninja nor CST Surgical Tech Prep shows ads.
Which is updated more often, ORninja or CST Surgical Tech Prep?
ORninja ships an update fortnightly, and CST Surgical Tech Prep every 2 months. Most recently, ORninja was updated on October 24, 2026 and CST Surgical Tech Prep on October 28, 2026.

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