Are both tools free with no daily limit?

Chessigma’s home page says no daily limit and no signup to start analyzing. This site’s review is also free, with no daily limit and no account. Chessigma lists extra features such as puzzles, account tracking and apps.

Which Stockfish version does Chessigma use?

Official pages state both. /tools/analysis and llms.txt say Stockfish 17. The analysis blog and a FAQ on /products/analysis say Stockfish 16. This page does not pick one. We run Stockfish 18 lite in your browser.

Does Chessigma show ads?

Its privacy policy says Google AdSense sets cookies for ads. Its pricing page lists No ads under Membership. A 13 June 2025 blog post said No ads. All three are official. This site has no ads, and it uses Google Analytics 4 and OpenPanel to count visits.

A Chessigma Alternative

Both tools are free, with no daily limit and no signup, and both describe running Stockfish in your browser. Chessigma has more features: puzzles, account tracking and an app. The points below are the ones that matter if you switch.

Updated 3 November 2026

Paste a PGN in the box, or enter a Chess.com or Lichess username. You get a full engine review in your browser. Written Coach notes are optional Pro.

How the two compare

Every cell links to the official page it came from. Where official pages disagree, both statements are on the table. We do not pick a winner from a conflict.

Free review, import, engine, coach, ads and price
Feature	Chessigma	Explain My Chess
Free review	Free unlimited game review. No signup required to start analyzing	Free review, no daily limit, no account
Import	Chess.com or Lichess username, or paste a PGN	Chess.com or Lichess username, or paste a PGN
Move grades	Six categories: Brilliant, Great, Good, Inaccuracy, Mistake, and Blunder	A label on every move, including brilliant, great, inaccuracy, mistake and blunder
Engine	Stockfish 17 on /tools/analysis and llms.txt. Stockfish 16 on the analysis blog and a /products/analysis FAQ	Stockfish 18 lite, running in your browser
Where analysis runs	Product page: Stockfish in the browser via WebAssembly. Privacy policy: Amazon Web Services for server-side analysis of imported games	The engine runs in your browser
AI coach	Froggy: 200 per month on the monthly plan, 400 per month on yearly and lifetime. Free plan: not listed	Coach is Pro, key moments only. Fair use: 100 games per month. $9.99 monthly or $69 yearly
Paid price	$14 monthly, $97 yearly, or lifetime $490	Review free. Pro (Coach): $9.99 monthly or $69 yearly
Ads	Privacy policy: Google AdSense. Pricing page lists No ads under Membership. A 13 June 2025 blog post said No ads	No ads. Analytics: Google Analytics 4 and OpenPanel
Several games at once	Official blog: “Not yet.” Single-game analysis first; bulk uploads on the roadmap. That page may have changed	The report reviews several recent games together

Checked on 3 November 2026. Sources: Chessigma home, Chessigma analysis, Chessigma pricing, Chessigma privacy.

When Chessigma is the better pick

You want puzzles. Chessigma’s home page ties puzzles to an optional account.
You want to track several players on one account. The same FAQ says an account lets you save usernames and track multiple players.
You want an app. The privacy policy describes iOS and Android apps.

When this one fits

You want a report across several games. Use the report.
You want explanations built only from engine facts, with every named move checked against the game or an engine line. See AI chess coach.
You want Pro at $9.99 monthly or $69 yearly, with Coach on key moments and a fair-use cap of 100 games per month. Chessigma’s paid plans are $14 monthly, $97 yearly, or $490 lifetime. See our pricing and Chessigma’s pricing page.

How we checked

On 3 November 2026 we read Chessigma public pages: home, analysis, Supercoach, pricing, privacy, terms, and the analysis blog. We did not log in. Conflicts (engine 16 vs 17, browser vs AWS, AdSense vs “No ads”) are copied as written.

Questions

Are both tools free with no daily limit?: Chessigma’s home page says no daily limit and no signup to start analyzing. This site’s review is also free, with no daily limit and no account. Chessigma lists extra features such as puzzles, account tracking and apps.
Which Stockfish version does Chessigma use?: Official pages state both. /tools/analysis and llms.txt say Stockfish 17. The analysis blog and a FAQ on /products/analysis say Stockfish 16. This page does not pick one. We run Stockfish 18 lite in your browser.
Does Chessigma show ads?: Its privacy policy says Google AdSense sets cookies for ads. Its pricing page lists No ads under Membership. A 13 June 2025 blog post said No ads. All three are official. This site has no ads, and it uses Google Analytics 4 and OpenPanel to count visits.

Explain My Chess is not affiliated with Chessigma. All trademarks belong to their owners. Features and prices change, so check each site before you decide.