Comparison

IMAIOS e vs FP Notebook

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

Head to head
About

IMAIOS e

This comprehensive human anatomy atlas offers over 26,000 medical images, including various views and illustrations. It allows users to explore anatomical structures with interactive features and multiple language options. A free preview is available before subscribing to the full, continuously updated atlas.

Highlights
  • 26,000+ medical and anatomical images
  • Axial, coronal, sagittal views
  • Radiography and angiography images
  • Dissection pictures and illustrations
  • Interactive labeling and search
  • 12 language options
Currently charting
Read full description

IMAIOS e-Anatomy is an atlas of human anatomy for physicians, radiologists, medical students and radiology technicians. Get a sneak peek at more than 26 000 medical and anatomical images for free before subscribing to our detailed atlas of human anatomy. e-Anatomy is based on the award-winning IMAIOS e-Anatomy online atlas. Carry with you the most complete reference of human anatomy, wherever you go, on your mobile device or tablet. e-Anatomy has over 26 000 images containing series of images in axial, coronal and sagittal views as well as radiography, angiography, dissection pictures, anatomical charts and illustrations. All medical images were carefully labeled, more than 967 000 labels available in 12 languages including the Latin Terminologia Anatomica. (More details on: https://www.imaios.com/en/e-Anatomy) Features: - Scroll through image sets by dragging your finger - Zoom in and out - Tap labels to display anatomical structures - Select anatomical labels by category - Easily locate anatomical structures thanks to the index search - Multiple screen orientations - Switch languages at the touch of a button The subscription also gives you access to e-Anatomy on IMAIOS website. e-Anatomy is an atlas of anatomy continuously being improved: updates and new module are part of the subscription! Additional downloads are required for full use of the application. The medical information on this application is provided as a tool and reference for use by licensed medical professionals, competent healthcare professionals and no others, it does not and should not be construed as any form of medical diagnosis or professional medical advice on any matter. About module activation. IMAIOS e-Anatomy has three methods of activation for our different users: 1) IMAIOS members who have access provided by their university or library, may use their user account to enjoy full access to all modules. However, an internet connection is periodically required to verify their user account. 2) Users who have purchased the modules in previous versions of IMAIOS e-Anatomy can use the ""Restore"" feature to activate all previously purchased content. You will not be charged again and the content available by the time of your purchase is permanently accessible offline. 3) New users are invited to subscribe to e-Anatomy. All modules and features will be active for a limited period of time. Subscriptions will be automatically renewed so that they can enjoy continuous access to e-Anatomy. Additional auto-renewable subscription Information: - Subscription automatically renews unless auto-renew is turned off at least 24 hours prior to the end of the current period. - Subscriptions and auto-renewals may be turned off by going to the user's account settings on the App Store after purchase. - No cancellation of the current subscription is allowed during the active subscription period. The screenshots are part of the full e-Anatomy application with all modules enabled. Privacy Policy and Terms of Use - https://www.imaios.com/en/privacy-policy - https://www.imaios.com/en/conditions-of-access-and-use"

About

FP Notebook

A comprehensive medical reference for primary care and emergency clinicians, offering rapid access to over 6100 interlinked topic pages. Content is updated monthly through literature reviews and conferences, providing up-to-date information for medical professionals.

Highlights
  • Rapid access medical reference
  • Over 6100 interlinked topic pages
  • Content updated monthly
  • 31 specialty books
  • 700+ chapters
  • Point-of-care tool
Features
Currently charting
Read full description

Family Practice Notebook is a rapid access, point-of-care medical reference for primary care and emergency clinicians. Started in 1995, this collection now contains over 6100 interlinked topic pages divided into a tree of 31 specialty books and over 700 chapters. FP Notebook’s content is updated monthly with systematic literature reviews and conferences. Please purchase an auto-renewing subscription to receive the latest content. The text content for this mobile application is identical to its online counterparts: fpnotebook.com and fpnotebook.com/mobile. Although access to this application is not restricted, the information found here is intended for use by medical providers. Non-clinical users may find the material challenging to understand, and should address specific medical concerns with their medical providers. Try before you buy with a 14-day FREE trial. After that it's only $24.99/year for access, including continuous content updates. Privacy Policy/Terms & Conditions - http://www.fpnotebook.com/disclaimer.htm

Screenshots

IMAIOS e4 screens
FP Notebook4 screens

Verdict

The call

The clearest difference is monetization model: IMAIOS e at free with in-app purchases against FP Notebook's subscription. IMAIOS e also leads on update cadence (every 9 days vs every 2 months). FP Notebook's advantage is review sentiment (58% vs 48%) and iOS requirement (14.3 vs 16.6). On price, rating, ratings volume and ads 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. IMAIOS e sells 2 in-app purchases, starting at $21.99 per month and FP Notebook sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for IMAIOS e against 4.8 for FP Notebook. Both are backed by a comparable volume of ratings — 1.4K and 3.3K respectively. Written reviews are what separate them: 48% of IMAIOS e's written reviews are positive against 58% of FP Notebook's.

UpkeepUpdate frequency

IMAIOS e ships an update every 9 days, FP Notebook every 2 months. Both last shipped on September 23, 2026.

Scorecard4 real differences · 7 level
IMAIOS e versus FP Notebook: the parameters behind the verdict, then further details
ParameterIMAIOS eFP Notebook
PriceFreeFree
Rating4.9 (1.4K ratings) — better4.8 (3.3K ratings)
Positive reviews47.9% of reviews58.2% of reviews — better
Number of ratings1.4K3.3K — better
Update frequencyEvery 9 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
Best chart rank#62#51 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.614.3 — better
Further details — not scored
Size2.1 GB134 MB
Age rating17+17+
DeveloperIMAIOSAtmosphere Apps, Inc.

Customer experience

IMAIOS e

All ratings1,428 ratings
Positive97.1%
Neutral0.9%
Negative2.0%
Written reviews305 reviews
Positive47.9%
Neutral10.8%
Negative41.3%

FP Notebook

All ratings3,297 ratings
Positive96.6%
Neutral1.2%
Negative2.2%
Written reviews67 reviews
Positive58.2%
Neutral0.0%
Negative41.8%

Bugs and requests

IMAIOS e

Not enough reviews yet to summarise bugs or requests.

FP Notebook

Reported bugs

2 issues
  • App freezing or crashing on certain devices
  • Subscription issues or unexpected charges

Requested features

2 requests
  • Ability to earn continuing education credits through the app
  • Improved search functionality

In-app purchases

2 purchases

IMAIOS e

Subscriptions2
  • e-Anatomy monthly Subscription$21.991 Month
  • e-Anatomy one year Subscription$132.991 Year
3 purchases

FP Notebook

Subscriptions3
  • Monthly Subscription$1.991 Month
  • Annual Subscription$19.991 Year
  • Annual Sub14 Days trial$24.991 Year

Questions

Is IMAIOS e free?
IMAIOS e is free to download, with in-app purchases available.
Is FP Notebook free?
FP Notebook is free to download, with in-app purchases available.
Which has better reviews, IMAIOS e or FP Notebook?
IMAIOS e is rated higher. IMAIOS e averages 4.9 out of 5 from 1.4K ratings, while FP Notebook averages 4.8 from 3.3K ratings.
Do IMAIOS e or FP Notebook have ads?
Neither IMAIOS e nor FP Notebook shows ads.
Which is updated more often, IMAIOS e or FP Notebook?
IMAIOS e ships an update every 9 days, and FP Notebook every 2 months. Most recently, IMAIOS e was updated on September 23, 2026 and FP Notebook on September 23, 2026.
Which is more popular, IMAIOS e or FP Notebook?
IMAIOS e currently peaks at #62 in the App Store charts, and FP Notebook at #51. Chart position reflects recent download velocity rather than total install base.

Other comparisons