Comparison

Dental Assistant Prep vs ARDMS

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

Head to head
About

Dental Assistant Prep

Features
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Walk into your dental assistant certification exam ready. Dental Assistant Prep gives you 960 practice questions with a clear explanation for every single answer, so you don't just memorize the right choice - you understand the clinical and safety concepts behind it. Built for candidates preparing for DANB certification exams (CDA and component exams). WHY IT WORKS Passing isn't about cramming. It's about repeated, targeted practice across every component the exam tests - then reinforcing exactly what you got wrong until it sticks. - 960 questions written to match the real exams' style and difficulty - An explanation on every answer, so each question teaches you something - Full component coverage: Radiation Health & Safety (RHS) - Infection Control (ICE) - General Chairside (GC) - Dental Anatomy & Terminology - Dental Materials - Coronal Polishing & Sealants - Preventive Care - Emergency Management - Office Practices STUDY YOUR WAY - Daily Plan that sizes itself to your exam date and keeps you on pace - Quick 10 for a fast review between patients - Timed Mode to build exam-day speed - Smart Review using spaced repetition to resurface weak spots - Full-Length Practice Exam that simulates the real thing - Missed Questions queue so nothing slips through - Custom Quiz to drill any component on demand TRACK YOUR PROGRESS - Pass probability that updates as you practice - Accuracy broken down by component - Streaks to keep you consistent - Exam countdown WHO IT'S FOR Dental assistants preparing for DANB certification exams (CDA, RHS, ICE, GC). START TODAY Your exam date isn't moving. Start a free trial, take your first Quick 10 today, and watch your pass probability 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/dental-legal/terms.html Privacy Policy: https://hermesdigitalbr-spec.github.io/dental-legal/privacy.html

About

ARDMS

Features
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Ace your ARDMS SPI exam with sonography physics practice and mock tests. Prepare to pass your ARDMS SPI i.e Sonography Principles & Instrumentation Exam on your first attempt! Whether you are an ultrasound student or a practicing healthcare professional, this app provides the ultimate study environment to master complex ultrasound physics concepts with ease and confidence. • KEY FEATURES: High-Yield Question Bank: Access hundreds of practice questions written by certified sonographers and ultrasound physics experts. Realistic Mock Exams: Practice under timed exam conditions designed to mirror the actual ARDMS® SPI test experience. Detailed Answer Rationales: Learn from every question with comprehensive explanations that reinforce core physics principles. Topic-Wise Quizzes: Target your weak areas by focusing study sessions on specific chapters like Doppler, Transducers, or Bioeffects. • Smart Progress Tracking: Monitor your accuracy, view detailed score reports, and track your readiness level over time. • Study Anywhere: Full offline mode allows you to study anytime without requiring an active internet connection. COVERED EXAM TOPICS: 1. Clinical Safety, Bioeffects & Quality Assurance (ALARA, thermal/mechanical indices, phantoms) 2. Physical Principles & Acoustic Physics (frequency, attenuation, acoustic impedance) 3. Transducers & Beam Formation (PZT crystal, spatial resolution, focusing) 4. Pulse Echo Instrumentation (gain, TGC, dynamic range, image processing) 5. Doppler Principles & Hemodynamics (Color, Spectral, Continuous Wave, Aliasing) 6. Ultrasound Artifacts (reverberation, shadowing, enhancement, mirror image) 7. Hemodynamics and Fluid Dynamics (laminar flow, Poiseuille's Law, Bernoulli Effect) WHY CHOOSE THIS APP? Passing the SPI exam is a vital milestone toward earning your RDMS, RDCS, or RVT credentials. This app simplifies complex acoustic formulas, Doppler equations, and instrumentation logic into digestible, easy-to-understand practice modules so you can sit for your exam with 100% confidence. DISCLAIMER: ARDMS is a registered trademark of the American Registry for Diagnostic Medical Sonography, which is not affiliated with, nor does it endorse or sponsor this application. All practice materials are independently created for educational and test-preparation purposes.

Screenshots

Dental Assistant Prep3 screens
ARDMS4 screens

Verdict

The call

The clearest difference is in-app purchases: ARDMS at none against Dental Assistant Prep's 3. ARDMS also leads on iOS requirement (13.0 vs 17.0). Dental Assistant Prep's advantage is ads (none vs shown). On price 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. Dental Assistant Prep sells 3 in-app purchases, starting at $3.99 per 7 days. ARDMS asks for nothing beyond the download.

Scorecard3 real differences · 3 level
Dental Assistant Prep versus ARDMS: the parameters behind the verdict, then further details
ParameterDental Assistant PrepARDMS
PriceFreeFree
Update frequencyFortnightly—
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size9 MB30 MB
Age rating4+4+
DeveloperHermes Inteligencia Digital LtdaMuhammad Abid

In-app purchases

3 purchases

Dental Assistant Prep

Subscriptions3
  • Dental Assistant Prep Weekly3 Days trial$3.997 Days
  • Dental Assistant Prep Monthly3 Days trial$10.991 Month
  • Quarterly$21.993 Months
None

ARDMS

No in-app purchases

Questions

Is Dental Assistant Prep free?
Dental Assistant Prep is free to download, with in-app purchases available.
Is ARDMS free?
ARDMS is free to download, with no in-app purchases.
Do Dental Assistant Prep or ARDMS have ads?
ARDMS shows ads; Dental Assistant Prep does not.

Other comparisons