Comparison

3D解剖学アトラス:iRis vs CT PassQuiz Head/Brain / MRI

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

Head to head
About

3D解剖学アトラス:iRis

A detailed 3D anatomical atlas for medical professionals, offering high-definition models and search functionality. Explore intricate anatomical details, including fine nerves and vascular structures, for enhanced learning and education.

Highlights
  • High-definition 3D anatomical models
  • Searchable anatomical information
  • Model visibility controls
  • Cross-section visualization
  • Key atlas for critical anatomy
Features
Read full description

医療従事者の皆様の学習・教育への活用を目的とした3DアトラスをあなたのiPhone / iPadで。 ○高精細なモデル  脳神経外科医監修のもと、微細な神経を始めとした従来の3Dアトラスでは見られない解剖情報が確認できます。  海綿静脈洞や脳幹内の神経線維も表現。 ○その他機能  ・解剖情報の検索機能  ・モデルの表示/非表示機能  ・切断面の可視化機能  ・重要な場面を再現するキーアトラス機能

About

CT PassQuiz Head/Brain / MRI

Features
Read full description

CT Pass Quiz is an anatomy learning app made for everyone who wants to learn human anatomy. Nowadays, we come to see 3D images on a daily basis, but in order to really understand stereoscopically, it is necessary to analyze the planar image and reconstruct it in our mind. This application gives the anatomical name displayed on the CT image in a quiz format, and you can learn the image anatomy efficiently by switching the axial section, coronal section, and sagittal section and selecting the answer from the four-choice question. I will. [Recorded image] CT image of the head Axial cross section Number of slices: 32 Coronal section Number of slices: 41 Sagittal section Number of slices: 31 Number of anatomy: 167 items [The number of questions] Section: 20 (10 questions each) Total: 200 questions [Auxiliary function] ■ Cross-section switching display By selecting the sub screen, it is possible to switch between axial section, coronal section, and sagittal section to check various sections. ■Display of selectable range By displaying the anatomical range on the image, you can answer while confirming the surrounding anatomical names. ■ Switching image conditions You can switch between brain parenchymal condition and bone condition. Enlarged display You can change the size of the image by pressing the enlarge/reduce button or pinching the screen out. ■ Multilingual support (English, German, Japanese, Chinese, Italian, French, Spanish, Korean, Arabic, Portuguese, Russian, Hindi, Vietnamese) In addition, we will continue to add functions to make learning fun. We will use the opinions and requests we receive to improve our service.

Screenshots

3D解剖学アトラス:iRis4 screens
CT PassQuiz Head/Brain / MRI4 screens

Verdict

The call

The clearest difference is review sentiment: 3D解剖学アトラス:iRis at 60% against CT PassQuiz Head/Brain / MRI's 0%. CT PassQuiz Head/Brain / MRI's advantage is price ($4.99 vs $40.99) and update cadence (fortnightly vs every 44 months). On ads, in-app purchases 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

3D解剖学アトラス:iRis costs $40.99 and CT PassQuiz Head/Brain / MRI $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

3D解剖学アトラス:iRis ships an update every 44 months, CT PassQuiz Head/Brain / MRI fortnightly. Both last shipped on October 29, 2026.

Scorecard4 real differences · 4 level
3D解剖学アトラス:iRis versus CT PassQuiz Head/Brain / MRI: the parameters behind the verdict, then further details
Parameter3D解剖学アトラス:iRisCT PassQuiz Head/Brain / MRI
Price$40.99$4.99 — better
Positive reviews60.0% of reviews — better0.0% of reviews
Update frequencyEvery 44 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.010.0 — better
Further details — not scored
Size491 MB139 MB
Age rating12+12+
Developer株式会社KompathKazuya Takayama

Customer experience

3D解剖学アトラス:iRis

Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

CT PassQuiz Head/Brain / MRI

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

3D解剖学アトラス:iRis

No in-app purchases

None

CT PassQuiz Head/Brain / MRI

No in-app purchases

Questions

Is 3D解剖学アトラス:iRis free?
3D解剖学アトラス:iRis costs $40.99, with no in-app purchases.
Is CT PassQuiz Head/Brain / MRI free?
CT PassQuiz Head/Brain / MRI costs $4.99, with no in-app purchases.
Do 3D解剖学アトラス:iRis or CT PassQuiz Head/Brain / MRI have ads?
Neither 3D解剖学アトラス:iRis nor CT PassQuiz Head/Brain / MRI shows ads.
Which is updated more often, 3D解剖学アトラス:iRis or CT PassQuiz Head/Brain / MRI?
3D解剖学アトラス:iRis ships an update every 44 months, and CT PassQuiz Head/Brain / MRI fortnightly. Most recently, 3D解剖学アトラス:iRis was updated on October 29, 2026 and CT PassQuiz Head/Brain / MRI on October 29, 2026.

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