The best way to search, organize, and share PubMed® literature directly on your mobile device

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.

- Search: Perform evidence-based searches by keyword, author, or journal then link to full text articles.
- Organize: Bookmark and Tag important articles and searches to quickly return to them later
- Share: Share articles directly from the app via Email, Twitter, Facebook, SMS, Dropbox, and more

- Grapherence®: Unbound’s unique search option allows you to visually explore the influence and interrelationships among journal articles
- For You: Discover new articles in a feed designed specifically for you based on how you use the app
- Browse: Select specific journals you want to follow and receive alerts when new articles are published

Grapherence® is Unbound’s interactive search that graphically represents the influence and interrelationships among journal articles. Tap the Grapherence button within a citation and instantly see how that article is related to others. Using this exclusive feature the researcher quickly uncovers difficult to find entries, determines overall significance, identifies clusters of thought, and locates seminal articles.

With 50+ premium apps available, Unbound Medicine combines powerful software with best-selling content to deliver clinical answers wherever you need them. Top-selling apps include Johns Hopkins Antibiotic (ABX) Guide, Davis’s Drug Guide, 5-Minute Clinical Consult, Harriet Lane Handbook, The Washington Manual, Nursing Central™, and Diagnosaurus DDx.

What’s New

Version 2.8

This latest update provides updates to enhance the performance of this app.
If you have further questions, please contact Unbound Medicine Support.
Thank you for using Prime: PubMed Journals & Tools.

Ratings and Reviews

4.7 out of 5
203 Ratings

203 Ratings

Grumpy Scottie ,

Helping me keep up with the literature

I am absolutely loving this app. It is exactly what I need for keeping updated with publications in my field of interest. I like the push notifications to let me know of new additions to my searches. One improvement I'd make is the ability to delete irrelevant stuff from my lists (perhaps another option when you slide to tag an article). I recommend this to anyone who regularly uses pubmed. Even allows you to log in to academic libraries (if you are registered users) to get full texts. Much better than the readcube app.

Developer Response ,

Thanks for using Prime and for your review! We are continually looking to add useful features to our application. Customer feedback such as this is critical to helping us improve our product.

Sherry S87 ,

Excellent access & information

I have been using this going on 2 years, and it has helped me immensely. My Shih Tzu is 13 & has Cushing’s Disease, with a tumor on his left adrenal gland. The articles that I can access on here have shown me ways to blend traditional medicine with Chinese medicines, homeopathic, and other alternative medicine. I don’t know how I could have done this research without this site!!

Developer Response ,

Hi Sherry, we're happy to hear Prime PubMed has been a useful resource to you and your pup. Thanks for taking the time to write a review.

Sarah'sScott ,

Great, but grapherence doesn’t work on my iOS devices anymore

I have enjoyed using Prime for at least five years now. One of its most useful options is its grapherence program. However, for the last several months to a year I have not been able to see grapherence results on either my iPhone or iPad. I don’t think it’s a specific setting, in that the problem occurred when freshly downloaded onto a new device. Have others had this problem? If so, is there a fix? It still works in my window-based PC.

Developer Response ,

Edit, 8/6/21. Hello and thank you for being a longtime customer. We are sorry to hear you're having trouble with the Grapherence feature. We've just tried reproducing the problem ourselves and have not been able to. Would you mind contacting our Support team so we may better help resolve the issue? You can reach us by phone (M-F, 9AM-5PM) at 610-627-9090, by email: , or by chat (through our website support page). Thank you!

App Privacy

The developer, Unbound Medicine, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Search History
  • Identifiers
  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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