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Interview Solver vs HeyDeer

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 HeyDeer
Detail Interview SolverHeyDeer logo HeyDeer
What it doesAI interview copilot for live coding interviews with real-time LeetCode solutions AI code reviews and fixes for GitHub pull requests
StageStartup Not given
FoundedNot given Not given
Based inUS SG
Pricing modelFreemium Freemium
PricingFree 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). 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
  • 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
  • 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
  • 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
  • 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 planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)20 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)221
Citation Flow (Majestic)3631
Referring domains (Majestic)83613

6 details filled in for both companies.

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