How do their growth rates compare?

Heidi has a month-over-month growth rate of +7.9%; Letterly has -43.9%.

How does pricing compare?

Heidi: Freemium, Free Trial, Paid, Contact for Pricing. Freemium. Clinicians can get started on a free tier, and paid subscription plans plus enterprise arrangements for clinics and health systems are available with demo booking. Because healthcare pricing is often seat- or organisation-based, confirm current rates on the official pricing page. Letterly: Freemium. Letterly is free to start with a freemium model. The free tier covers everyday dictation, while paid plans unlock higher usage limits and advanced features; pricing is shown in-app and on the website.

What are alternatives to Heidi and Letterly?

Other tools in related categories include Notta, Video Transcriber AI, Freed AI Medical Scribe, Carepatron, Upheal.

Heidi vs Letterly — Traffic (2.18M vs 53.01K), Pricing & Verdict

Open AI Tools

Heidi vs Letterly — Traffic (2.18M vs 53.01K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Heidi	Letterly
Official Domain	heidihealth.com	letterly.app
Pricing Model	Freemium, Free Trial, Paid, Contact for Pricing	Freemium
Monthly Visits	2.18M (2,184,693)	53.01K (53,009)
MoM Traffic Delta	+160.05K (+7.9%)	-41.48K (-43.9%)
Primary Market & Share	🇨🇦 Canada (38.7%)	🇺🇸 United States (35%)
Direct Visits / mo	1.5M	40.98K
User Rating	4.7	4.3
Supported Platforms	Website	Website

Heidi

AI ambient scribe and clinical AI partner for clinicians

Ambient visit transcription

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.

Automatic note refinement

Reviews the edits a clinician makes, groups recurring corrections, and proposes word library entries, auto-edit rules, and template changes to approve.

Document drafting after the visit

Writes referral letters, letters back to the GP, care plans, and patient recaps straight from the finished note.

Pre-clinic and handover prep

Builds the day's list, stages meds, allergies and recent results per patient, and drafts ISBAR-style shift handovers.

Strengths & Pros

+Clinical accuracy is backed by cited, peer-reviewed safety research
+Document flow extends well beyond the visit, covering referrals, handovers, recaps, and forms
+Desktop app captures telehealth audio and dictates anywhere on screen
+Supports many languages for transcription, useful for multilingual clinics