Interview Solver vs Code Guardian

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

Interview Solver compared with Code Guardian
Detail	Interview Solver	Code Guardian
What it does	AI interview copilot for live coding interviews with real-time LeetCode solutions	AI skill package for code quality, security and architecture checks integrated into Claude Code and OpenAI Codex
Stage	Startup	Established
Founded	Not given	2007
Based in	US	DE
Pricing model	Freemium	Paid
Pricing	Free trial with 10 messages included. Monthly subscription at $39/month (regular price $59/month, sale ends Oct 28). Interview Cycle plan at $90 every 3 months (regular price $149, that's $30/mo, sale ends Oct 28).	Company licence 142.80 € one-off (incl. 19% VAT, equals 120.00 € net), first 30 days of updates included. Optional subscription: 29.75 € per month incl. VAT (25.00 € net), cancellable monthly. With purchase: 22.31 € per month incl. VAT for 6 months (−25%), then 29.75 € per month.
Key features	Invisible mode keeps overlay off screen shares during interviews Screengrabs send coding window to AI model for one-shot solutions Voice transcription captures both sides of conversation Companion mode turns phone into second screen and remote control Undetectable global hotkeys avoid alt-tab suspension Document upload grounds answers in resume or job description Process hidden in Activity Monitor on macOS Flowcharts and system design diagrams Interview Solver Mobile works on phone without desktop app Company-specific interview question hubs and role-based prep tracks	Seven quality gates enforcing approvals, migrations, dependencies, data verdicts, defect claims, option questions and legal text checks Four command latches that block destructive operations before execution 22 detectors built from real incidents Five review modes and 15 hooks for different task sizes Council of five advisers with root-cause analysis and retrospectives Autopilot mode for unattended runs Works on macOS, Linux and Windows with Python 3.9 or newer Two separate editions for Claude Code and OpenAI Codex 27 skills and 14 review agents included
What makes it different	Works invisible to screen sharing and proctored tests without detection Companion mode with remote controls when HackerRank tracks hotkeys Trained on entire set of all LeetCode questions Desktop app rather than browser extension for use during screen sharing Phone-based Interview Solver Mobile without installation requirement	Proven improvement: average 5.7 points with Code Guardian vs 5.0 without across benchmark tests Built from 120+ real software projects and 20+ years of development experience Deterministic safety checks that block dangerous commands before execution, not after in reports Buy once, use permanently with optional updates subscription
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)	20 +1 (up) since last check	54 no change since last check
Trust Flow (Majestic)	22	18
Citation Flow (Majestic)	36	20
Referring domains (Majestic)	836	196

7 details filled in for both companies.

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