Comparison

athenaOne vs OpenEvidence

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

Head to head
About

athenaOne

This secure mobile extension of clinical workflows allows healthcare providers to manage their daily schedules, clinical inboxes, and patient visits. It enables documentation of exams, placement of orders, and creation of new patient cases directly from a mobile device.

Highlights
  • Access daily schedule
  • Manage clinical inbox
  • Prepare for visits
  • Use documentation accelerators
  • Document exams
  • Place orders
  • Create patient cases
Features
Read full description

***Patients: this app is for doctors and healthcare providers. If you’re looking for the athenahealth patient portal, please contact your doctor’s office*** Designed for athenaOne® Providers, the athenaOne® mobile is a secure, extension of athenaOne® clinical workflows designed to help athenaClinicals customers deliver better care. Simply log in with your athenaOne® credentials to get started. - Access your daily schedule - Quickly manage your clinical inbox  - Prepare for upcoming visits ahead of time - Use your existing documentation accelerators - Document exams and place orders - Create new patient cases and order groups

About

OpenEvidence

This app provides healthcare professionals with evidence-based clinical decision support and medical information. It acts as a search engine, sourcing answers from peer-reviewed literature and leading medical organizations to aid in high-stakes medical decisions at the point of care.

Highlights
  • Clinical decision support
  • Medical search engine
  • Sourced from peer-reviewed literature
  • FDA and CDC data integration
  • Partnerships with leading medical journals
  • Verified healthcare professional access
Features
Currently charting
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Clinical Decision Support & Medical Search Engine for Healthcare Professionals (NPI Required) OpenEvidence is the most widely used clinical decision support platform and medical search engine among U.S. clinicians. According to independent studies, more American physicians use OpenEvidence than all other AI platforms combined. OpenEvidence is trusted by millions of verified healthcare professionals to make high-stakes clinical decisions at the point of care with answers that are sourced, cited, and grounded in peer-reviewed medical literature. Founded with the mission to organize and expand the world's collective medical knowledge, OpenEvidence is actively used daily by the majority of physicians in the United States. OpenEvidence is free for all verified U.S. clinicians. AN OFFICIAL AI PARTNER OF: The New England Journal of Medicine (NEJM) The Journal of the American Medical Association (JAMA) and its 11 specialty journals National Comprehensive Cancer Network (NCCN) Nature Cochrane Library Wiley WHAT YOU GET: • Specific answers to clinical questions, with every claim cited to its source • 35 million+ peer-reviewed papers, 300+ medical journals, plus FDA and CDC sources • Licensed full text from NEJM, JAMA, Nature, Cochrane, and others • EvidenceGrade™: see the strength of the evidence behind every answer • CME and MOC credits, earned by asking questions • Visits for ambient documentation, Dialer for secure patient calls, and Voice Mode for hands-free answers CONTENT AGREEMENTS AND COLLABORATIONS: American Academy of Family Physicians (AAFP) American College of Cardiology (ACC) American Diabetes Association (ADA) American Academy of Pediatrics (AAP) American College of Obstetricians and Gynecologists (ACOG) American College of Emergency Physicians (ACEP) ASCO Guidelines American Academy of Orthopaedic Surgeons (AAOS) American Academy of Ophthalmology (AAO) American Urological Association (AUA) Plus AAO-HNS, GINA, SNO, SSO, and more. IN USE ACROSS: 10,000+ hospitals and medical centers nationwide, including Mayo Clinic, Mount Sinai, Cedars-Sinai, MSKCC, and Sutter Health. WHY CLINICIANS TRUST US: • HIPAA compliant across the platform • NEJM, JAMA, Nature, and NCCN—official content partners 
 • Tens of millions of clinical consultations per month WHAT CLINICIANS SAY: “OpenEvidence is currently the best AI tool for medical information.” — Dr. Paul Sax, Infectious Disease, Brigham and Women’s Hospital, Review in The New England Journal of Medicine Journal Watch (now NEJM Clinician) “In a morning report, a resident had a question that I didn’t know the answer to, but we were able to open OpenEvidence and get an answer on the spot.” — Dr. Kyle P. Lehenbauer, Minneapolis Veterans Affairs Medical Center “I use OpenEvidence multiple times during the day and every day. I am a better doc because of this. I expand my differential diagnoses and verify the science behind choices of treatments.” — Dr. Sharon E. Martin, Southern Huntingdon Medical Center Important note: OpenEvidence is available only to healthcare professionals. Users must verify their healthcare professional status before using OpenEvidence.

Screenshots

athenaOne4 screens
OpenEvidence4 screens

Verdict

The call

The clearest difference is review sentiment: OpenEvidence at 81% against athenaOne's 33%. OpenEvidence also leads on rating (4.9 vs 4.5) and update cadence (weekly vs every 3 weeks). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OpenEvidence holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 2.8K and 12K respectively. Written reviews point the same way: 33% of athenaOne's written reviews are positive against 81% of OpenEvidence's.

UpkeepUpdate frequency

athenaOne ships an update every 3 weeks, OpenEvidence weekly. Both last shipped on November 1, 2026.

Scorecard7 real differences · 4 level
athenaOne versus OpenEvidence: the parameters behind the verdict, then further details
ParameterathenaOneOpenEvidence
PriceFreeFree
Rating4.5 (2.8K ratings)4.9 (12K ratings) — better
Positive reviews33.0% of reviews81.1% of reviews — better
Number of ratings2.8K12K — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supportedFree — better
Best chart rank—#37 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size598 MB95 MB
Age rating17++17
DeveloperathenahealthOpenEvidence Inc.

Customer experience

athenaOne

All ratings2,788 ratings
Positive90.2%
Neutral3.6%
Negative6.2%
Written reviews103 reviews
Positive33.0%
Neutral15.5%
Negative51.5%

OpenEvidence

All ratings11,960 ratings
Positive98.7%
Neutral0.4%
Negative0.8%
Written reviews297 reviews
Positive81.1%
Neutral2.4%
Negative16.5%

User reviews

athenaOne

From 2.8K App Store ratings

What we love

  • 👍 Easy to navigate
  • 🚀 Convenient for reviewing patient info
  • 🚀 Helpful for after-hours calls
  • 🚀 Saves time with chart prep

Room to improve

  • 🐛 Frequent crashes and login issues
  • 🔍 Limited functionality compared to desktop version
  • 🔍 Difficult to access old documents and records
  • 🔍 Clunky interface and too many clicks
  • 🔍 Lacks key features like scheduling, billing, and controlled substance prescribing

OpenEvidence

From 12K App Store ratings

What we love

  • 🚀 Accurate and concise answers
  • 💡 Provides references and sources
  • 👍 Helpful for clinical practice
  • 🚀 Efficient search and retrieval
  • 👍 Invaluable quick reference tool

Room to improve

  • 🐛 App not working in latest update
  • ⚠️ Requires specific prompts for complete information

Bugs and requests

athenaOne

Reported bugs

3 issues
  • Login issues and credential expiration
  • Inconsistent performance and freezing
  • Incompatibility with certain devices and OS versions

Requested features

6 requests
  • Ability to schedule appointments and visits
  • Integrate billing functionality
  • Support for controlled substance prescribing
  • Improved search and document access
  • Customizable interface and text size
Show 1 more
  • Seamless integration with patient portal

OpenEvidence

Reported bugs

1 issue
  • App not working in latest update

Requested features

2 requests
  • Availability on MacBook
  • Integration with clinical workflows and EMRs

In-app purchases

None

athenaOne

No in-app purchases

None

OpenEvidence

No in-app purchases

Questions

Is athenaOne free?
athenaOne is free to download, with no in-app purchases.
Is OpenEvidence free?
OpenEvidence is free to download, with no in-app purchases.
Which has better reviews, athenaOne or OpenEvidence?
OpenEvidence is rated higher. athenaOne averages 4.5 out of 5 from 2.8K ratings, while OpenEvidence averages 4.9 from 12K ratings.
Do athenaOne or OpenEvidence have ads?
Neither athenaOne nor OpenEvidence shows ads.
Which is updated more often, athenaOne or OpenEvidence?
athenaOne ships an update every 3 weeks, and OpenEvidence weekly. Most recently, athenaOne was updated on November 1, 2026 and OpenEvidence on November 1, 2026.

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