Heard vs CodeMatrix

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

Heard compared with CodeMatrix
Detail	Heard	CodeMatrix
What it does	The voice layer for coding agents	AI-powered technical interview preparation platform
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	IN
Pricing model	Freemium	Not given
Pricing	Free: $0/month (open source with local voices). Pro: $12/month or $144/year (managed voices and spoken recaps). Power: $24/month or $288/year (adds voice input and iPhone companion). Every download includes a free 14-day Power trial with no card required.	Not given
Key features	Spoken updates from Claude Code and Codex Three listening modes: Co-pilot, Companion and Focus Spoken recaps of agent work Voice dictation with right Command key Hey Parrot voice assistant iPhone companion app for listening and replying Follow multiple agent sessions at once Open source engine with local voices Works with any terminal including iTerm2 and tmux Up to 2M characters of narration daily on Power plan	Practice coding questions Track strengths and weaknesses AI-powered skill assessment
What makes it different	Works without watching your screen—lets you stay informed while focused on other tasks All code and transcripts stay on your Mac; nothing is used to train models Listen and respond to agents from your iPhone via companion app Open source engine available under Apache 2.0 license Supports multiple coding agents with one interface	AI-powered assessment and guidance Targets preparation for top MNC interviews
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)	6 −1 (down) since last check	9 no change since last check
Trust Flow (Majestic)	3	3
Citation Flow (Majestic)	30	8
Referring domains (Majestic)	101	7

4 details filled in for both companies.

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