Clinical Decision Support
OpenEvidence vs PMcardio Queen of Hearts
Scores are legacy evidence and documentation scores, not product-performance ratings. How it is computed
OpenEvidence scores 44 of 100 (Competitive), PMcardio Queen of Hearts 59 (Solid choice). PMcardio Queen of Hearts lists a public price, OpenEvidence is quote only.
Decision support · Reviewed November 5, 2026
On this page
OpenEvidence
by OpenEvidence · founded 2022
Free physician-only literature-grounded Q&A, 1M consults/day.
PMcardio Queen of Hearts
by Powerful Medical · founded 2017
FDA De Novo authorized AI ECG model that flags STEMI and STEMI-equivalent occlusion MI on any 12-lead ECG, in the PMcardio app and in health-system STEMI pathways.
Score
Each row shows points earned of points available under the published rubric.
OpenEvidence
PMcardio Queen of Hearts
| Dimension | OpenEvidence | PMcardio Queen of Hearts | Difference |
|---|---|---|---|
| FDA clearance | 0 / 12 | 12 / 12 | -12 |
| HIPAA / SOC2 / BAA | 0 / 10 | 10 / 10 | -10 |
| EHR integrations (count) | 0 / 5.6 | 0 / 5.6 | 0 |
| Top-3 EHR coverage (Epic / Oracle / Athena) | 0 / 4.8 | 0 / 4.8 | 0 |
| Bidirectional write-back | 0 / 1.2 | 0 / 1.2 | 0 |
| Peer-reviewed papers | 14.7 / 21 | 8.4 / 21 | +6.3 |
| RCT / meta-analysis / systematic review | 4.5 / 9 | 4.5 / 9 | 0 |
| Funding & adoption signal | 12 / 12 | 6 / 12 | +6 |
| Pricing transparency | 2.5 / 2.5 | 2.5 / 2.5 | 0 |
| Years in market | 4.2 / 6 | 6 / 6 | -1.8 |
Scroll horizontally to see every column.
Pricing
OpenEvidence
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Plan | Free | Free | Free for NPI-verified physicians (ad-funded). |
PMcardio Queen of Hearts
| Tier | Billing period | Price | Notes |
|---|---|---|---|
| Free | per month | Free | 5 ECG reports per month, no credit card. The pricing page defaults to the Slovak region and says prices vary by country. |
| Individuals | per user per month | EUR 10 | 10 EUR per month, 17 percent off billed yearly. 50 ECGs per month, Queen of Hearts, LVsense, ECGxplain and 36 core diagnostics, mobile app only, 30-day report history. Paid through the app store. Slovak-region price; the page says prices vary by country. |
| Teams | per year | EUR 2,610 | 2,610 EUR per year for 10 users (22 EUR per user per month, billed yearly), scalable to 50 users, 1,000 ECGs per month, web app, unlimited report history, US or EU data centre, onboarding session. Invoiced. Slovak-region price. |
| Organizations | Not stated | Not stated | No public price. Unlimited reports, users and locations, HL7/XML and EHR integration, AI-powered STEMI pathway, dedicated data residency and SLA. Contact sales. |
Verified November 5, 2026 from powerfulmedical.com (opens in new tab).
Evidence
OpenEvidence
FDA decisions
No FDA decision cited in our research as of November 12, 2026.
Peer-reviewed
5 PubMed records name OpenEvidence.
- Performance of Large Language Models on Diagnostic Radiology Board-Style Questions: A Comparative Evaluation of GPT-4o, Perplexity AI, and OpenEvidence. (opens in new tab)
- OpenEvidence. (opens in new tab)
- Concordance of ChatGPT, Gemini, Claude, and OpenEvidence with the 2024 AAOS guidelines on acute isolated meniscal pathology. (opens in new tab)
Community
20 posts sourced: 3 positive, 14 neutral, 3 negative.
PMcardio Queen of Hearts
FDA decisions
DEN250044 (opens in new tab)De Novo2026-09-03
STEMI AI ECG Model
Peer-reviewed
6 PubMed records name PMcardio Queen of Hearts.
- Electrocardiographic diagnostic possibilities for atrial fibrillation using artificial intelligence: Differentiation from sinus rhythm and other arrhythmias with the PMcardio app in COVID-19 patients. (opens in new tab)
- Bifascicular Block Associated With Myocardial Infarction: A Marker of Proximal Left Anterior Descending Artery Occlusion Confirmed by the Artificial Intelligence-Based Smartphone App Queen of Hearts. (opens in new tab)
- Accuracy of cath lab activation decisions for STEMI-equivalent and mimic ECGs: Physicians vs. AI (Queen of Hearts by PMcardio). (opens in new tab)
Compliance and integrations
Documented from each vendor’s own pages.
| Spec | OpenEvidence | PMcardio Queen of Hearts |
|---|---|---|
| Free tier | Yes | Yes |
| HIPAA | No / unverified | Yes |
| SOC 2 Type II | No / unverified | Yes |
| EHR integrations | Not stated | Not stated |
| Founded | 2022 | 2017 |
| HQ | US | US |
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Common questions
Open the full decision support comparison
Differential diagnosis, treatment guidance, drug interactions, evidence-grounded Q&A. The CDS landscape ranges from the UpToDate gold standard to physician-only OpenEvidence. We compared what clinicians actually use.
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