Opioid Calculator vs its rivals

Side-by-side comparison against Opioid Calculator's closest competitors — identity, store metrics, ratings & sentiment, and strategic intel.

Core Identity
DeveloperANZCAUnbound Medicine, Inc.Unbound Medicine, Inc.Antimicrobial Therapy, Inc.Lexi-CompAzumio Inc.mySugr GmbHDoximityMediSafe Inc.Care to translate AB
CategoryMedicalMedicalMedicalMedicalMedicalMedicalMedicalMedicalMedicalMedical
PlatformAndroid, iOSiOS, AndroidiOS, AndroidiOS, AndroidiOS, AndroidiOS, AndroidiOS, AndroidAndroid, iOSiOSiOS, Android
Store Metrics
Rating3.7 / 54.9 / 54.9 / 54.8 / 54.7 / 54.8 / 54.7 / 54.8 / 54.7 / 54.7 / 5
Ratings Count98,9413,7331,8443,74924,57830,731191,45199,626196
PriceUSD0.99FreeFreeFreeFreeFreeFreeFreeFreeFree
Release DateNov 9, 2015Feb 6, 2009Apr 12, 2011Aug 28, 2014Jun 22, 2009Oct 28, 2008Jun 3, 2013Sep 29, 2010Nov 8, 2012Nov 8, 2017
Last UpdatedNov 17, 2025Apr 3, 2026Apr 3, 2026Apr 13, 2026May 11, 2026Apr 26, 2026Apr 12, 2026Apr 17, 2026Feb 10, 2026Apr 20, 2026
Sentiment & Reviews
Sentimentmixedmixedmixed-negativeterrible--terriblemixed
Score45/10045/10045/100-25/10015/100--25/10065/100
Praises
  • The core calculation functionality provides a reliable and fast experience for daily professional use
  • Succinct medication monographs provide reliable clinical reference for nursing students and practitioners
  • Integrated dosage and infusion calculators assist with critical medication safety checks
  • Comprehensive antibiotic reference content provides essential clinical support for hospitalists and infectious disease specialists
-
  • Reliable clinical reference content remains a daily essential for medical professionals in clinical settings
  • Comprehensive health tracking features allow users to monitor glucose and blood pressure effectively
--
  • Reliable medication reminders provide essential daily support for managing complex health schedules
  • High utility for health communication tasks makes the application a valuable tool for medical professionals
Complaints
  • Cursor jumping and input duplication during long addition sequences disrupt the calculation workflow
  • Subscription and login errors prevent access to paid content across devices
  • Transition to a mandatory subscription model alienates users who previously accessed content via textbooks
  • Restrictive device management policies block access for users switching between multiple mobile phones
-
  • Persistent database download failures prevent access to critical drug interactions and compatibility information
  • UI navigation changes hide essential drug library tools behind excessive menu clicks post-update
  • Authentication and update loops lock users out of paid content despite active subscriptions
  • Persistent application crashes and loading failures prevent access to critical health data
  • Aggressive subscription prompts and paywalls frustrate users attempting to access basic functionality
--
  • Frequent application crashes and interface freezes prevent users from logging medication doses
  • Aggressive transition to a paid subscription model locks users out of existing data
  • Language settings default to Arabic without clear options for users to switch to English interface
Requests
  • Addition of memory functions including M plus and M minus for professional accounting needs
  • Cross-platform license portability to allow access on multiple devices after purchase
  • Flexible multi-device access to allow clinicians to use the guide across different hardware
-
  • Restoration of direct home screen access to the primary drug library database
  • Seamless integration with third-party health platforms for data synchronization and backup
----
Strategic Intel
Strengths
  • oMEDD calculation engine establishes professional clinical authority
  • Lightweight architecture ensures faster startup than system-native calculators
  • Safety-prompt integration provides immediate risk mitigation for clinicians
  • Integrated IV calculators function as a daily-use clinical retention loop
  • Exclusive DrugGuide.com web access creates a multi-surface professional workflow
  • Brand authority of Johns Hopkins content sustains high-trust clinical adoption
  • Monthly content update cadence maintains relevance in fast-moving infectious disease fields
  • Point-of-care search utility minimizes cognitive load for hospitalists
-
  • Daily editorial updates establish clinical authority
  • Offline database access creates high switching costs
  • 15-year market presence builds significant trust
  • Direct hardware integration creates high switching costs
--
  • Clinical-grade drug interaction engine
  • Deep integration with US health infrastructure
  • Multi-user family sync
  • Offline-first architecture ensures reliable performance in clinical settings where Wi-Fi is restricted.
  • Privacy-first design prevents patient data storage, meeting institutional compliance requirements.
Weaknesses
  • Input duplication bugs disrupt professional accounting tasks
  • Low-contrast dark mode interface hinders result visibility
  • Incompatibility with newer flagship hardware causes launch failures
  • 0.06★ rating gap between iOS and Android indicates authentication instability
  • $39.99/year subscription model lacks a one-time purchase option for legacy users
  • Restrictive device-locking policies drive high churn among multi-device users
  • Opaque subscription billing processes trigger negative sentiment
  • Technical instability in purchase restoration flows blocks access to paid content
-
  • Persistent database download failures
  • UI navigation regressions hiding core tools
  • Authentication loops locking out paid subscribers
  • 2.25★ Android rating vs 4.8★ iOS rating
  • Persistent launch-time crashes on latest versions
  • Unresponsive customer support for billing issues
--
  • High crash frequency post-update
  • Mandatory paywall for historical data
  • Inconsistent notification reliability
  • Interface navigation barriers due to unexpected default language settings.
  • Missing terminology for specialized roles like respiratory therapists.
Pricingfreemiumsubscriptionsubscriptionsubscriptionsubscriptionsubscriptionfreemiumfreefreemiumfreemium
MomentumMaintenanceMaintenanceMaintenanceIntenseMaintenanceMaintenanceIntenseIntenseActiveIntense
Update Cadence5 versions, 2 majors/6mo, ~197d avg5 versions, 1 majors/6mo, ~53d avg4 versions, ~70d avg5 versions5 versions, 1 majors/6mo, ~45d avg3 versions, ~325d avg5 versions5 versions5 versions, ~11d avg5 versions

Compare Opioid Calculator head-to-head

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Opioid Calculator, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Data licensed under CC-BY-NC 4.0