Bayesian Health vs Isabel Healthcare
Isabel posts public prices, and Bayesian Health sells through a hospital contract. Isabel DDx Companion costs $149 per year on Standard and $199 on Premium, which adds an English-only language-model layer. It comes with a 30-day free trial and a $49 student and resident plan. It is listed in the Cerner App Gallery, and Epic clients get infobutton access.
Bayesian suits a hospital quality team that tracks sepsis. Its device received FDA 510(k) clearance in April 2026 and monitors patients continuously, with the flag appearing inside the EHR. Isabel generates a differential when a clinician enters findings, and openFDA's 510(k) database shows no Isabel clearance. For sepsis surveillance, Isabel is out. A hospitalist or resident who wants a second look at an undifferentiated case has no Bayesian plan to buy. A 2025 Orphanet study of 100 rare-disease patients found Isabel's top ten matched at least one case-conference diagnosis in 28% of cases. Isabel's own 96% top-ten figure is a vendor claim.
Decision support · Reviewed November 1, 2026
Bayesian Health
by Bayesian Health
Sepsis flagging software that monitors EHR data continuously and shows a high-risk flag in the chart. FDA 510(k) cleared April 2026.
Isabel Healthcare
by Isabel Healthcare · founded 1999
Differential-diagnosis generator with self-triage and educator products. The vendor says it is used in over 90 countries and 14 languages.
When to pick each one
Bayesian Health
- FDA 510(k) K250680, cleared April 2026
- Continuous sepsis monitoring from EHR data
- Hospital contract, no public price
Isabel Healthcare
- Standard $149 per year, 30-day free trial
- Cerner App Gallery listing, Epic infobutton access
- Student or resident plan at $49 per year
Score
Each row shows points earned of points available under the published rubric.
Bayesian Health
33of 100
Isabel Healthcare
35of 100
| Dimension | Bayesian Health | Isabel Healthcare | Difference |
|---|---|---|---|
| FDA clearance | 12 / 12 | 0 / 12 | +12 |
| HIPAA / SOC2 / BAA | 0 / 10 | 0 / 10 | 0 |
| 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 | 8.4 / 21 | 14.7 / 21 | -6.3 |
| RCT / meta-analysis / systematic review | 0 / 9 | 0 / 9 | 0 |
| Funding & adoption signal | 6 / 12 | 6 / 12 | 0 |
| Pricing transparency | 1.3 / 2.5 | 2.5 / 2.5 | -1.2 |
| Years in market | 0 / 6 | 6 / 6 | -6 |
Scroll horizontally to see every column.
Pricing
Bayesian Health
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Enterprise | n/a | n/a | No public price. |
Isabel Healthcare
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Standard | n/a | $149 | EUR 139 incl. VAT. 30-day free trial. |
| Premium | n/a | $199 | EUR 179 incl. VAT. Adds an LLM layer (English only). |
| Student / resident | n/a | $49 | Not available to EU students. 50% discount for listed emerging economies. |
| Institutional | n/a | n/a | Demo request, no public price. The API has been available since 2010. |
Evidence
Bayesian Health
FDA decisions
K250680 (opens in new tab)510(k)2026-04-30
Bayesian Health Sepsis Flagging Device
Peer-reviewed
1 PubMed record names Bayesian Health.
Isabel Healthcare
FDA decisions
No FDA decision cited in our research as of October 20, 2026.
Peer-reviewed
2 PubMed records name Isabel Healthcare.
- Cracking the code: a head-to-head comparison of expert clinicians and artificial intelligence in diagnosing rare diseases. (opens in new tab)
- Is language an issue? Accuracy of the German computerized diagnostic decision support system ISABEL and cross-validation with the English counterpart. (opens in new tab)
Compliance and integrations
Documented from each vendor’s own pages.
| Spec | Bayesian Health | Isabel Healthcare |
|---|---|---|
| Free tier | ||
| HIPAA | ||
| SOC 2 Type II | ||
| EHR integrations | Not specified | Not specified |
| Founded | n/a | 1999 |
| HQ | US | UK |
Scroll horizontally to see both columns.
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.