
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1Heidi records 2,184,693 monthly visits with +7.9% month-over-month growth and Freemium, Free Trial, Paid, Contact for Pricing pricing. Perplexity records 88,310,223 monthly visits with -3.7% growth and Freemium pricing.

AI ambient scribe and clinical AI partner for clinicians
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | heidihealth.com | perplexity.ai |
| Pricing Model | Freemium, Free Trial, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 2.18M (2,184,693) | 88.31M (88,310,223) |
| MoM Traffic Delta |
| +160.05K (+7.9%) |
| -3.39M (-3.7%) |
| Primary Market & Share | 🇨🇦 Canada (38.7%) | 🇺🇸 United States (25.5%) |
|---|
| Direct Visits / mo | 1.5M | 63.32M |
|---|
| User Rating | 4.7 | 4.7 |
|---|
| Supported Platforms | Website | Website |
|---|

AI ambient scribe and clinical AI partner for clinicians
Listens to the consultation in real time and converts it into a structured clinical note, with an emphasis on accurate drug names and specialty terminology.
Reviews the edits a clinician makes, groups recurring corrections, and proposes word library entries, auto-edit rules, and template changes to approve.
Writes referral letters, letters back to the GP, care plans, and patient recaps straight from the finished note.
Builds the day's list, stages meds, allergies and recent results per patient, and drafts ISBAR-style shift handovers.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Executes multi-step iterative web and document research across hundreds of sources, cross-checking facts and generating structured, citation-backed analytical reports that can be exported as PDFs or shared as interactive Perplexity Pages.
Lets Pro and Max subscribers switch dynamically between Perplexity's in-house Sonar models and top external models (including Claude 4, o3-pro, and Gemini) or compare multi-model reasoning outputs side by side.
Provides dedicated project workspaces where users upload local PDFs, spreadsheets, and text files, configure custom assistant instructions, and run queries that combine private document retrieval with live internet search.
Extends Perplexity from passive Q&A into agentic execution, turning high-level user requests into completed workflows, multi-tab browser actions, and automated data synthesis via the Comet ecosystem.

Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
#2Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.

Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.

Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.

SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.


SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.


Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.

Offers robust clinical note drafting and front desk assistance, matching Heidi's streamlined ambient scribing workflow.


SpecialistBundles an AI clinical scribe directly within a complete practice management and EHR suite, unlike Heidi's standalone focus.

SpecialistAnalyzes scholarly article citations to verify scientific claims, making it superior for academic literature reviews.
Generates structured, cited answers from live web queries, though with less polished UI and advanced model options.
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.
Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.
Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.
SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.
Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
Offers robust clinical note drafting and front desk assistance, matching Heidi's streamlined ambient scribing workflow.
SpecialistBundles an AI clinical scribe directly within a complete practice management and EHR suite, unlike Heidi's standalone focus.
SpecialistAnalyzes scholarly article citations to verify scientific claims, making it superior for academic literature reviews.
Generates structured, cited answers from live web queries, though with less polished UI and advanced model options.