Sidekick by OpenHand vs cognira

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sidekick by OpenHand compared with cognira
Detail	Sidekick by OpenHand	cognira
What it does	An AI companion for your telehealth visit	Self-learning AI that learns from your chats and runs on a single iMac
Stage	MVP	Startup
Founded	Not given	2026
Based in	Not given	GB
Pricing model	Free	Freemium
Pricing	Early access is free during the limited early access program.	Free: £0/forever with 25K tokens/week. Pro: £15/month with 500K tokens/week. Max: £30/month with 2M tokens/week. API: £1.50 per 1M tokens, minimum £5 top-up.
Key features	Real-time conversation following during telehealth visits Medical term explanations Question suggestions during visits Visit recap and summary Desktop app for macOS and Windows	Private memory that works immediately when you teach it Verified shared knowledge with public rejection ledger Local MLX inference not forwarded to external API cognira Entity for local on-device AI with optional weight retraining OpenAI-compatible API endpoint Served from single 16GB iMac not a GPU cluster Background learning loop with safety filtering Chat history, pinning, and search One-tap Forget button to remove memories No ads and no data sales
What makes it different	Explains medical terminology in real-time during conversations No AI model training on identifiable health data	Self-learning from user chats with verified public ledger of what stuck Runs on one iMac not a GPU cluster with measurable low energy use Independent model served directly, not a wrapper around external API Immediate private memory plus verified weight updates to shared knowledge
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	16 +1 (up) since last check	20 +7 (up) since last check
Trust Flow (Majestic)	18	0
Citation Flow (Majestic)	19	23
Referring domains (Majestic)	56	44

6 details filled in for both companies.

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