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To keep you updated on the go, we highlight a free medical app each month!

About App of the Month

Librarian reviewers from Saskatchewan Health Authority and Alberta Health Services consider the audience and purpose of the apps, as well as highlighting additional features:

  • In the ‘Evidence’ section, we assess how easily the user can identify the app’s currency and support from the evidence
  • In the ‘Usability’ section, we assess the organization of information and other usability factors that may contribute to user experience

Our complete grading criteria is embedded in the review.

Note: Reviewers are not healthcare professionals and don't appraise the quality of any recommendations within the app. Reviews are not meant as endorsements.

Prime: PubMed Journals & Tools

Prime: PubMed Journals & Tools

Version reviewed

2.7.80 Android 
2.8 iPad & iPhone

Device & OS used

Samsung, Galaxy Tablet A7

Android iPad Air iOS 12.4.2

Date of review

January 14, 2021


Mark Mueller (SHA)

Susanne King-Jones (AHS

Technician Support Scott Frick













Image Source: Prime, App Store. Retrieved on February 1, 2021 from:

Stated Purpose

“The Prime PubMed app from Unbound Medicine is the best way to search, organize, and share information about medical literature directly on your smartphone, tablet, and the web.” (1)

From the Google Play and Apple Websites:

“The free Prime app connects you to the most up-to-date journal citations and abstracts from the complete PubMed database. In addition to the ability to perform powerful searches and link to the publisher’s full text articles, Prime also provides a number of exclusive tools not available anywhere else creating a one-of-a-kind user experience.”(2,3)

Official Webpage of the App:

Exclusive tools not available anywhere else. E.g. Grapherence®: Unbound’s unique search option allows you to visually explore the influence and interrelationships among journal articles


User account, labels, favorites, search history, journal list, notes, indication that a citation has been seen before



Image Source: Prime: PubMed Journals & Tools, Apple. Retrieved on January 26, 2021 from: 


No specific audience targeted

All medical, health, and allied health professions


This app can be used by professionals, students, laypersons, patients and anyone with an interest in the life sciences and biomedical literature

Part 1: Editorial committee, content updates, and evidence grading

The app is developed by Unbound Medicine: a reputable medical/health science information product company. The content is frequently updated. There is no grading system.

Part 2: Source and authorship information for 3 entries

Prime PubMed is a functional-based app that searches and provides access to the citations and abstracts of international biomedical literature found in PubMed. This app is not a point-of-care or a reference-based app that contains inherent entries and informational sections to assess. As such, the reviewers of this app will leave Part B of this assessment blank.

Organization of information

Searching for information options included using either text-based search bar or a map of the body with clickable circled areas which lead to an organized list of article types.


The app is easy and intuitive to navigate. There are three main functions: search, browse and a customizable “For You” option.


User Account required: Yes

Internet connection required for use: Yes, Needs internet connection

Text search field: Yes

Browsable content: Yes

Advertisements: No

Pop-up advertisements: No

In-app purchases: No




Compatible with iPhone, iPad iPad Air and iPod Touch. Requires iOS 11.0 or later.
Last updated (as per App store listing): June 27, 2020

Compatible with Android smartphones and tablets. Requires Android OS 5.0 and up.

Last updated (as per Google Play listing): March 30, 2020   


App Store listing: 10.5MB (iOS) (Apple)
Google Play listing: 6.3M (Android)

App Developer

Unbound Medicine, Inc.

Country of Origin



223 West Main Street, Suite C.
Charlottesville, VA, 22901, US



We'd love to hear from you!

Do you have an app suggestion or have questions/comments about the App of the Month feature? Let us know!