Comparison

ChessMentor AI vs Aimchess

Aimchess gives you stats and a weekly report. ChessMentor AI analyses every move with free Stockfish 18 analysis, finds the patterns behind your losses, and explains them in plain language.

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Full feature comparison

FeatureAimchessChessMentor AI
Game import (Chess.com & Lichess)YesYes — automatic by username
Engine behind the analysisOwn model + engineStockfish 18 (WASM, depth 22)
Free deep analysisLimited on free planYes — unlimited Stockfish, free
Move-by-move mistake detectionAggregate statsYes — every move classified
Cross-game pattern detectionYes — metric-basedYes — themed, ranked by frequency
Plain-language coachingMetrics & tipsYes — grandmaster-style narratives
AI chat about your gamesNoYes — Pro plan
Puzzles from your own mistakesYesYes — generated from your blunders
Price~$10/mo (subscription)Free / $14.99/mo (Pro)

Where Aimchess is strong

  • Polished weekly-report format
  • Clear numeric metrics and trend graphs
  • Established, well-known brand
  • Native mobile apps

Where ChessMentor AI wins

  • Free unlimited Stockfish 18 analysis — no paywall on depth
  • Every move classified, not just aggregate stats
  • Coaching in plain words — the "why", not just the number
  • AI chat that knows your specific weaknesses
  • Runs Stockfish locally in your browser

Who should switch

If Aimchess left you with a dashboard of numbers but no clear sense of what to actually work on, ChessMentor AI is the alternative. It turns Stockfish’s verdict into a coaching conversation — and the core analysis is free.

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