Comparison

Mosby's Drug Reference vs Clinical Calculator PLUS

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

Head to head
About

Mosby's Drug Reference

This app provides healthcare professionals with comprehensive drug information, including actions, usage, dosage, interactions, and side effects. It emphasizes patient safety with Black Box Warnings, Safety Alerts, and information on life-threatening side effects. Features include custom notes, highlights, and quick search functionality.

Highlights
  • Over 5,000 drug listings
  • Black Box Warnings and Safety Alerts
  • Drug action, usage, dosage, interactions, side effects
  • Custom notes and highlights
  • Full text search
  • Appendix of recent FDA-approvals
Features
Currently charting
Read full description

14-Day Free Trial ** Trusted by Health Care Professionals for Over 30 Years ** ABOUT MOSBY’S DRUG REFERENCE Based on the latest edition, Mosby's Drug Reference provides health care professionals with the tools they need to eliminate errors and improve accuracy. Drug monographs feature concise, easy-to-understand information and make finding answers easy with sections on each drug's action, usage, dosage, interactions, side effects, and more. With an emphasis on patient safety, this best-selling app includes Black Box Warnings for dangerous adverse reactions, Safety Alerts for situations requiring special attention, and a focus on life-threatening side effects of 50 common drug classes. FEATURES • More than 5,000 generic and trade-name drugs are profiled • Appendix of recent FDA-approvals • Icons for High Alert and Rarely Used medications • Highlighted Black Box Warnings, safety alerts, and life-threatening side effects • Helpful IV therapy updates • Create custom notes and highlights within entries • 150+ abbreviations listed for practical understanding • Unlabeled uses and help with easily confused drug names • Full Text Search helps find medications quickly • “Favorites” for bookmarking important entries FREE 14-DAY TRIAL: WHAT TO EXPECT • First-time users can access Unbound's complete Mosby's Drug Reference mobile app free for 14 days • After 14 days, your iTunes account will be charged $45.99 for a one-year subscription unless you have turned off auto-renew at least 24 hours before the free trial ends. • To manage your subscriptions, open Apple's “Settings” app and tap on the “iTunes & App Store" entry. Tap your Apple ID at the top of the screen and login. Tap subscriptions, then tap the subscription you wish to manage. •NOTE: If you choose not to purchase a subscription, content will no longer be viewable after the free trial period. iTunes automatic renewal: Your subscription automatically renews unless auto-renew is turned off 24 hours prior to the conclusion of your current period. Auto Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Your iTunes account will automatically be charged the current renewal rate ($45.99) within 24 hours prior to the end of the subscription period. If you choose not to renew, you will be able to use the app, however will not receive updates. Authors: Linda Skidmore-Roth, RN, MSN, NP Publisher: Elsevier Powered by: Unbound Medicine Unbound Privacy Policy: www.unboundmedicine.com/privacy Unbound Terms of Use: https://www.unboundmedicine.com/end_user_license_agreement

About

Clinical Calculator PLUS

Access over 350 medical calculators and scoring systems for healthcare professionals. This comprehensive tool simplifies complex formulas, providing quick and accurate results without an internet connection after initial download. It offers easy navigation and detailed information for each calculation.

Highlights
  • Over 350 medical calculators and scoring systems
  • Easy access to formulas via alphabetical, category, or historical lists
  • Built-in calculator for input processing
  • Detailed help information for each formula
  • Remembers last entered values
  • Offline access to content
  • SmartSearch for medical terms
Features
Read full description

"Try before you buy" - Download the FREE App, which includes sample content. In-App purchase required to unlock all content. Skyscape Clinical Calculator Plus comprises over 350 medical calculators including: * Framingham Score * Bruce Protocol Treadmill Test * Ranson's Criteria * Pediatric Trauma Score * San Francisco Syncope Rule * CHF and Thrombolysis Risk * Absolute Neutrophil Count * Pregnancy Calculator and more! An indispensable resource for every healthcare provider! Skyscape Clinical Calculator Plus is the most comprehensive medical calculator available! It includes a full suite of basic and premium calculation tools designed to meet the needs of a wide variety of specialties and clinical situations. All of these are packaged into a convenient, single format that does it all. Forget having to remember complicated formulas, just input the necessary values, and results presented in a consistent format are immediately available. Comprehensive: Skyscape Clinical Calculator Plus now includes tools such as peak flow, narcotic equivalence, pregnancy dating, syncope rules, and much more. Over 350 preprogrammed formulas, rules, and scoring systems are included. Whether you are a Family Physician, Cardiologist, Emergency Physician, Internist, Pediatrician, OB/Gyn, Surgeon, or Nephrologist; this tool will meet your needs. Intuitive, easy-to-access formulas: Skyscape Clinical Calculator Plus allows you to find your needed calculation tool easily. Three methods of accessing the tools include: - Alphabetical listing - Category listing - Historical listing You can thus easily find what you need! Detailed information at your fingertips: From a built-in calculator assisting with value field input, to control of decimal point placement in formula results, Skyscape Clinical Calculator Plus allows you to determine the input and output details for every formula. Also included is a help button that shows you information about the formula or source materials for a given calculator or scoring tool. Key Features * Over 350 basic and premium calculators, tools, and scoring systems, useful across medical specialty * Easy access to formulas * Powerful built-in calculator for preprocessing inputs * Detailed help for each formula * Remembers values you last entered * Automatic evaluation of the formula, once all input fields are filled in * Quick access to other Skyscape products * No internet connection is required to access the content after the initial download. Find information quickly using powerful SmartSearch technology. Search part of term for those hard to spell medical terms. SUBSCRIPTION : Please purchase a yearly auto-renewing subscription to receive content access and available updates. Yearly auto-renewing payments- $4.99 Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscription may be managed by the user and auto-renewal can be disabled at any time by going to your device “Settings” and tapping “iTunes & App Store”. Any unused portion of a free trial period will be forfeited when you purchase a subscription, where applicable. If you have any questions or comments, email us any time: customersupport@skyscape.com or call 508-299-3000 Privacy Policy - https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions - https://www.skyscape.com/terms-of-service/licenseagreement.aspx Publisher: Skyscape

Screenshots

Mosby's Drug Reference4 screens
Clinical Calculator PLUS4 screens

Verdict

The call

The clearest difference is ads: Mosby's Drug Reference at none against Clinical Calculator PLUS's shown. Mosby's Drug Reference also leads on rating (4.6 vs 4.3) and ratings volume (235 vs 7). Clinical Calculator PLUS's advantage is review sentiment (50% vs 32%) and iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and monetization model 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. Mosby's Drug Reference sells 1 in-app purchase, starting at $45.99 per year and Clinical Calculator PLUS sells 5 in-app purchases, starting at $1.49 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Mosby's Drug Reference holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Mosby's Drug Reference has 235 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 32% of Mosby's Drug Reference's written reviews are positive against 50% of Clinical Calculator PLUS's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 9 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 5 level
Mosby's Drug Reference versus Clinical Calculator PLUS: the parameters behind the verdict, then further details
ParameterMosby's Drug ReferenceClinical Calculator PLUS
PriceFreeFree
Rating4.6 (235 ratings) — better4.3 (7 ratings)
Positive reviews31.8% of reviews50.0% of reviews — better
Number of ratings235 — better7
Update frequencyEvery 9 monthsEvery 9 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#196 — better—
DevicesiPhone, iPad, iPod, MaciPhone, iPad, iPod, Mac
Requires iOS15.013.0 — better
Further details — not scored
Size9 MB45 MB
Age rating17+12+
DeveloperUnbound Medicine, Inc.Skyscape Medpresso Inc

Customer experience

Mosby's Drug Reference

All ratings235 ratings
Positive88.9%
Neutral3.4%
Negative7.7%
Written reviews22 reviews
Positive31.8%
Neutral9.1%
Negative59.1%

Clinical Calculator PLUS

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Mosby's Drug Reference

Reported bugs

1 issue
  • Every time I search norco or hydrocodone hydrochlorothiazide comes up

Requested features

3 requests
  • Version for people in the dental field
  • Create an app version for dental drug reference
  • Separate favorites list for users and spouses

Clinical Calculator PLUS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Mosby's Drug Reference

Subscriptions1
  • Mosby's Drug Reference14 Days trial$45.991 Year
5 purchases

Clinical Calculator PLUS

Subscriptions4
  • 25% Off - Limited Time Offer$1.491 Year
  • 20% Off - Limited Time Offer$1.591 Year
  • 15% Off - Limited Time Offer$1.691 Year
Show 1 more
  • ClinicalCalculator PLUS 1Y Sub7 Days trial$4.991 Year
One-time1
  • Clinical Calculator PLUS™$4.99

Questions

Is Mosby's Drug Reference free?
Mosby's Drug Reference is free to download, with in-app purchases available.
Is Clinical Calculator PLUS free?
Clinical Calculator PLUS is free to download, with in-app purchases available.
Which has better reviews, Mosby's Drug Reference or Clinical Calculator PLUS?
Mosby's Drug Reference is rated higher. Mosby's Drug Reference averages 4.6 out of 5 from 235 ratings, while Clinical Calculator PLUS averages 4.3 from 7 ratings.
Do Mosby's Drug Reference or Clinical Calculator PLUS have ads?
Clinical Calculator PLUS shows ads; Mosby's Drug Reference does not.
Which is updated more often, Mosby's Drug Reference or Clinical Calculator PLUS?
Mosby's Drug Reference ships an update every 9 months, and Clinical Calculator PLUS every 9 months. Most recently, Mosby's Drug Reference was updated on October 27, 2026 and Clinical Calculator PLUS on October 24, 2026.

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