CodeTrain vs HeyDeer

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

CodeTrain compared with HeyDeer
Detail	CodeTrain	HeyDeer
What it does	Socratic AI coding tutor that teaches by asking, never by writing code	AI code reviews and fixes for GitHub pull requests
Stage	MVP	Not given
Founded	Not given	Not given
Based in	US	SG
Pricing model	Freemium	Freemium
Pricing	Free: $0, 10 lessons per month from public repos. Pro: $24/month with unlimited lessons from private repos and larger tutor model. Team: $32 per learner per month with everything in Pro plus team dashboard and onboarding journeys. Enterprise: Custom pricing with SSO, audit logs and self-hosting.	Free: 1,000 credits first month, 300 monthly after; Starter: $9/month with 2,500 monthly credits; Pro: $39/month with 12,000 monthly credits. No seat fees. Add-on credits start at $5 for 500 credits at base rate of $10 per 1,000 credits, with volume discounts. Reviews of public repositories free up
Key features	Breaks tasks into small steps that must pass before advancing Works with public and private repositories Never writes code for you, only hints and guidance Concept recall scheduling with widening intervals Real code execution and test passing Bring your own model API key CodeTrain CLI for private repositories CodeTrain Open Skill for coding agents Team dashboard with progress tracking	Independent review model that checks all pull requests uniformly regardless of authorship Dual model verification to reduce false positives Autopilot for automated fixing and iteration Review walkthrough showing what to read first and what to skim Support for team standards via REVIEW.md and AGENTS.md Configurable feedback scope (Concise, Balanced, Detailed) Standard and Deep review depths for different complexity levels MCP servers for additional review context Works with public and private repositories @heydeer mention for questions and task handoff
What makes it different	Never writes code—only guides through Socratic questions and hints Tests actually run and must pass before advancing Learns from your own codebase, not generic exercises Records unaided work, proving true capability Code stays local with bring-your-own-key option	Finds 78% more issues than GitHub Copilot on the same pull requests No seat fees regardless of team size or number of repositories Independent and uniform review across all code sources and models Automated fixing with Autopilot until PR is ready to merge Free reviews for open source projects up to fair-use limit
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)	23 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	5	1
Citation Flow (Majestic)	28	31
Referring domains (Majestic)	86	13

6 details filled in for both companies.

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