Comparison

Sonography Exam 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

Sonography Exam Prep

Features
Read full description

Sonography Exam Prep SPI is an offline ultrasound physics & instrumentation study app for SPI candidates. Purchase required for full access (auto-renewable subscription or lifetime unlock). WHAT YOU GET • 2,400+ original practice questions across SPI domains and specialty bridge review • SPI-format timed mocks (~110 questions / 2 hours) with realistic domain weights • Practice by topic: Doppler, image optimization, exam physics, transducers, safety & QA • Specialty Review bridge for clinical application across abdomen, OB-GYN, vascular, and echo contexts • Flashcards with spaced repetition • Weak-area drills from your misses • Progress dashboard: readiness %, topic mastery, streak, exam countdown • Detailed rationales — including physics calculation items SUBSCRIPTIONS & PRICING (USD) • Monthly Access — $9.99 / month • Annual Access — $49.99 / year (3-day free trial when eligible) • Lifetime Access — $99.99 one-time Payment is charged to your Apple ID. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings → Apple ID → Subscriptions. Privacy Policy: https://joykhansayan1.github.io/sonography-exam-prep-spi/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://joykhansayan1.github.io/sonography-exam-prep-spi/support.html DISCLAIMER Independent study material. Not affiliated with, endorsed by, or associated with ARDMS, Inteleos, or Pearson VUE. SPI and ARDMS are trademarks of their respective owners. All questions are original and are not real exam questions. Confirm current exam details on official ARDMS sources.

About

ARDMS

Features
Read full description

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

Sonography Exam Prep4 screens
ARDMS4 screens

Verdict

The call

The clearest difference is in-app purchases: ARDMS at none against Sonography Exam Prep's 3. ARDMS also leads on iOS requirement (13.0 vs 17.0). Sonography Exam 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. Sonography Exam Prep sells 3 in-app purchases, starting at $9.99 per month. ARDMS asks for nothing beyond the download.

Scorecard3 real differences · 2 level
Sonography Exam Prep versus ARDMS: the parameters behind the verdict, then further details
ParameterSonography Exam PrepARDMS
PriceFreeFree
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size5 MB30 MB
Age rating4+4+
DeveloperMD Shahariar Nazim JoyMuhammad Abid

In-app purchases

3 purchases

Sonography Exam Prep

Subscriptions2
  • Monthly Access$9.991 Month
  • Annual Access3 Days trial$49.991 Year
One-time1
  • Lifetime Access$99.99
None

ARDMS

No in-app purchases

Questions

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

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