Side-by-side
Heidi Health vs Nabla vs Tandem Health
Independent three-way comparison. Editorial scores, compliance, pricing, EHR integrations and language coverage — sourced facts and hands-on testing only, no vendor marketing.
Heidi Health
TestedThe broadest-reach ambient scribe in the field — 110 languages across 116 countries, 2M+ consults/week, the best community-shared template system in the category, plus a separate clinical Q&A surface (Heidi Evidence).
Nabla
TestedOur 2026 Editor's Pick — the only ambient scribe shipping the full HIPAA + SOC 2 Type II + GDPR + ISO 27001 quartet with no audio stored by default and a real free tier.
Tandem Health
TestedEuropean regulated clinical AI with the broadest certification stack in the field — but note quality has been the weak point in our hands-on testing, with hallucinations appearing more often than from the precision-focused leaders.
Side-by-side
Cells marked with a check are the best on that dimension across the three. Data points come from each vendor’s own published materials and our hands-on testing.
| Dimension | Heidi Health | Nabla | Tandem Health |
|---|---|---|---|
Score type Tested tools have been scored by reviewers after real use; provisional scores come from sourced data only. | Hands-on tested | Hands-on tested | Hands-on tested |
Editorial score | 8.0 | 9.0 | 7.0 |
Starting price Public pricing lets you budget without a sales call. | Free / from $150/mo | Free up to 30 consults/mo | Free / €125/mo |
Free tier | Yes | Yes | Yes |
HIPAA | Yes | Yes | Not disclosed |
SOC 2 | Yes | Yes | Not disclosed |
GDPR | Yes | Yes | Yes |
Avoids training on your data | Yes (states it does not) | Yes (states it does not) | Yes (states it does not) |
Data residency | Localized to the region of collection | Google Cloud regional — databases in the region of your choice | EU data centers |
Named EHR integrations | 2 | 7 | 2 |
Languages supported | 110 | 35 | 1 |
When to pick which
Heidi Health
Best for clinicians who want the broadest template library in the field, a real free plan and global reach.
Wins on: languages supported.
Nabla
Best for clinicians who want a real free entry point without compliance trade-offs.
Wins on: editorial score, named ehr integrations.
Tandem Health
Best for european and uk clinicians whose primary requirement is the broadest enumerated certification stack — and who can absorb the note-quality gap with careful clinician review.
Doesn’t lead any single dimension in this set — consider this tool when overall fit (price, EHR, regional language) matters more than one decisive feature.
Pairwise comparisons
Same data, narrower scope — the head-to-head version of each pair from the three above.