Comparison

AST CST Exam Prep vs CF Lecturio

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

Head to head
About

AST CST Exam Prep

Prepare for your Certified Surgical Technologist (CST) exam with a personalized study plan. Practice with over 550 questions, track your progress, and compare your scores to the community average to boost your confidence and pass on your first attempt.

Highlights
  • Personalized study plan
  • 550+ practice questions
  • Track strengths and weaknesses
  • Detailed test statistics
  • Community score comparison
  • Multiple exam options
Read full description

Pass your CST exam with flying colors! Boost your confidence in passing first time with our mobile app and a personal study plan based on your current skill and requirements. The national certifying examination for surgical technologists covers the knowledge and skills common to competent entry-level Surgical Technologists in varied settings and geographical locations. Committee members designed the examinations to assess the skills that comprise the core body of knowledge for all surgical technologists and surgical first assistants. The Certified Surgical Technologist (CST®) examination examines practical knowledge, and one night of studying will not lead to passing grades. Key features: - Choose from different exams - Practice with 550+ questions written by instructors and expert tutors - Track your strengths and weaknesses within Stats section of the app - Study detailed statistics of every test you take - Compare your score to the community average for almost any type of exam - - - - Purchases, subscriptions and terms You need to buy a lifetime access or subscribe to get access to all features, courses and questions. The cost of the purchase is charged to your iTunes account. Subscriptions are auto-renewable and are billed at the rate and period selected depending on the subscription plan. Users’ accounts are charged for auto-renewal within 24 hours prior to the end of the current period. Subscriptions can be managed and auto-renewal can be turned off in Account Settings in iTunes after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of use: https://mastrapi.com/terms Privacy policy: https://mastrapi.com/policy

About

CF Lecturio

Features
Read full description

Welcome to CF Lecturio, your online academy. Features: - Video lectures: Learn & review all relevant concepts faster, easier - Learning Material: Download a PDF of any lecture’s slides for later reference - Qbank Tests: Apply your knowledge and solve clinical case questions - Spaced Repetition Quiz: reinforce knowledge, driven by a smart learning algorithm - Bookmatcher: Find the right videos for your text book - Bookmarks: Organize lectures in your own lists - Study planner: Plan your learning goals - Text Book Articles: Deepen and reinforce your knowledge - Learning progress control: Check your progress for each course - Synchronization between all devices: Simply continue learning seamlessly on another device - Offline availability: Learn on the go - Notes: Create notes about your lectures - Playback speed: Adjust the speed of the videos to your learning speed

Screenshots

AST CST Exam Prep4 screens
CF Lecturio4 screens

Verdict

The call

The clearest difference is in-app purchases: CF Lecturio at none against AST CST Exam Prep's 2. AST CST Exam Prep's advantage is update cadence (every 2 months vs every 14 months) and iOS requirement (13.0 vs 15.0). 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. AST CST Exam Prep sells 2 in-app purchases, starting at $24.99 per month. CF Lecturio asks for nothing beyond the download.

UpkeepUpdate frequency

AST CST Exam Prep ships an update every 2 months, CF Lecturio every 14 months. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

Scorecard3 real differences · 7 level
AST CST Exam Prep versus CF Lecturio: the parameters behind the verdict, then further details
ParameterAST CST Exam PrepCF Lecturio
PriceFreeFree
Rating4.6 (288 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings288 — better—
Update frequencyEvery 2 months — betterEvery 14 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size35 MB117 MB
Age rating4+17+
DeveloperMastrAPILecturio GmbH

Bugs and requests

AST CST Exam Prep

Reported bugs

7 issues
  • Answers change after submission
  • Incorrect scoring
  • Repeated questions
  • Misspellings and poor wording
  • Answers marked incorrect when correct
Show 2 more
  • Content not transferring to new app
  • Typos in questions and answers

Requested features

3 requests
  • iPad version of the app
  • Personalizing tests
  • Better questions

CF Lecturio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

AST CST Exam Prep

Subscriptions1
  • Monthly with trial7 Days trial$24.991 Month
One-time1
  • Lifetime access$99.99
None

CF Lecturio

No in-app purchases

Questions

Is AST CST Exam Prep free?
AST CST Exam Prep is free to download, with in-app purchases available.
Is CF Lecturio free?
CF Lecturio is free to download, with no in-app purchases.
Do AST CST Exam Prep or CF Lecturio have ads?
Neither AST CST Exam Prep nor CF Lecturio shows ads.
Which is updated more often, AST CST Exam Prep or CF Lecturio?
AST CST Exam Prep ships an update every 2 months, and CF Lecturio every 14 months. Most recently, AST CST Exam Prep was updated on November 3, 2026 and CF Lecturio on November 12, 2026.

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