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The off-line chess trainer

A chess coach who explains every move — with the internet switched off.

Coach Ada plays you at your own level, grades every move and tells you what was better and why. She lives on the tablet itself: no cloud, no account, no subscription, nothing to log in to.

Coach Ada Coach Ada · your move !!Nxf7 — brilliant! A fork on the queen and the rook. This sacrifice has a follow-up — that is what makes it a sacrifice and not a blunder. Meet Coach Ada
Get it on Google Play Download on the App Store
Free to download $19.99 unlocks everything, once, in the app
!!BrilliantNxf7 ★Best moveexd5
Live board · the app's own pieces, arrows and grades
19 bots & legends 620,000+ puzzles 525,000+ master games 5,000+ opening studies 100+ interactive lessons
Meet your coach

Watch Coach Ada coach a real game, move by move.

Not a chatbot — a coach on every move. Ada plays at your rating; each move you make gets a grade on the square and a one-line reason beside the board, and each move she makes comes with a warning about what it threatens. All of it on the device, with no connection.

Coaching game · you (1050) vs Coach Ada
Coach Ada

Coach Ada

Grades every move as it happens · take-backs allowed · hints on
Show hintShow arrowsTake it backWhat masters played ›

Real analysis, in plain words

Every move is checked by a full-strength engine, then turned into a sentence you can act on: what it defends, what it attacks, what it develops, and what was better. Not a number — a reason.

Nine grades on every move

Brilliant, great, best, good, book, inaccuracy, mistake, miss, blunder — the same vocabulary strong players use, with a colour and a symbol so a six-year-old understands it too.

Your own mistakes become puzzles

Ada collects the positions where you went wrong and hands them back as a personal puzzle set. You do not practise generic tactics — you fix the things you actually get wrong.

See Coach Ada in full ›
Nineteen opponents

Bots with a personality you can feel over the board.

From a beginner who has just learned the rules to a 1900 master — and three legends up to 2200. Bo grabs everything. Gus gives away pawns for an attack. Greta trades into endgames she knows by heart. Hover or tap any face to meet them.

Climb the ladder

Beat a bot and the next one unlocks. Your wins, losses and rematches are tracked for every bot, so you always know who is next.

They talk while you play

Bots greet you, react to captures, own up to blunders and congratulate you when you win. Every line is written by hand — friendly, funny, never unkind. Chatter can be turned off.

Three legends

Tani, Magnus and Garry play with their real style and openings drawn from their own games — tuned to a level you can genuinely beat.

Offline tournaments

Be the champion! Enter a tournament against the bots — no internet needed.

Eight players, three knockout rounds and a crown for the winner, all on the device. Four cups, from the Meadow Cup for beginners to the Tower Cup for masters. Win your quarter-final, your semi and the final — or fight for bronze if you slip — and the medal goes straight into your trophy cabinet.

Your Level Cup8 players around your Elo
Quarter-finals
YOYou1050
Max700
Nigel850
Zoe900
Captain Castle1050
Rook Rex750
Gambit Gus1150
Queenie950
Semi-finals
YOYou1050
Zoe900
Captain Castle1050
Gambit Gus1150
Final
YOYou1050
Gambit Gus1150
♛YouYour Level Cup · +18 Elo
♛CrownWin the final
2SilverRunner-up
3BronzeWin the third-place match
1–3Cup pointsHarder cups score more
★Featured eventEvery few days · double points

Your Level Cup

Eight players within about 200 points of you. The classic — a fair fight every time.

Meadow Cup

Beginner bots, 250–700. Pip, Bo, Lulu, Bella and friends. A great first tournament.

Castle Cup

Club bots, 700–1050. Max, Rook Rex, Nigel, Zoe, Queenie, the Captain and Stockfish 2–3.

Tower Cup

Masters, 1050+. Gus, the Professor, Betty, Greta, Tom, the Maestro and Stockfish 4–6.

Interactive lessons

100+ interactive lessons that play out on a live board.

Every lesson is a scene, not a page of text: the bot of each land talks you through the idea while arrows, dots and highlights appear under the pieces, then hands the board to you to try it. The voices are bundled with the app, so it all works in airplane mode.

Watch & learn How the knight jumps Pip's Meadow · 1 min
A frame from the How the knight jumps video
Hi! I'm Pip, and this is the knight — my favourite piece. It looks like a little horse.

Every frame here is the real video, playing on the real board — captured straight out of the app.

Eight lands, one bot each

Every land is hosted by a bot who narrates its videos and lessons — then you beat them to claim the land.

It waits for you

Tap the speaker and the video pauses on each line until the narration has finished, so nothing runs ahead of a young reader.

Then it is your turn

After the explanation the board is yours: tap the squares, find the move, and Ada checks it. The same brilliant / best / blunder badges from your own games appear here too.

Make it yours

Day or night, colour or black & white, and a warm light that is kinder to young eyes.

Screens are hard on children's eyes, especially in the evening. NIA CHESS has its own warm-light and brightness controls built into the app, a black-and-white mode for e-ink tablets and calmer reading, and a night theme for the sofa. Try them here — this is the real home screen.

The NIA CHESS home screen
ThemeA warm paper day theme and a low-glare night theme.
ScreenBlack & white for e-ink readers, or when colour is too much.
Warm lightFilters blue light so evening chess is gentler on the eyes.
0%
BrightnessDims well past the tablet's own minimum.
100%
Reading presetsOne tap sets both, in the app.
Your pieces, your board

Twelve piece sets and ten boards. Try them.

Tap a set and every board on this page changes with it — the same sets you can pick inside the app, from the classic Staunton look to bold, high-contrast pieces for small screens and young eyes. Boards come in walnut, maple, birch, olive, icy sea and more.

Showing Staunty on walnut. Piece sets are from the open-source Lichess project.

Lessons

Eight lands, 100+ lessons, one bot per land.

From how the pieces move all the way to real strategy. Finish the lessons in a land, beat the bot who lives there, claim the land. Every lesson position is engine-checked, and Coach Ada walks you through each step.

  • Beginner · Tactics I & II · Safety & defence
  • Openings · Endgames · Thinking · Strategy
  • 5,000+ opening studies and an explorer that names any line
The lessons map — eight lands, one bot each
Optional · the only online feature

Play rated games on your own Lichess account, built right in.

Sign in once and play real people from the same board, with your Lichess rating on the line. The player sees only a rating and a country flag — never a username. No chat, no profile, no friend list, no feed. The rating change lands on the result screen, ready for Ada to review.

  • 10, 15 and 30 minute rated games
  • Standard, King of the Hill, Atomic and Crazyhouse
  • Import your Lichess games for full review
  • Leave it switched off and nothing else in the app changes
The Lichess screen
Family-friendly by design

A 100% controlled environment.

Built by parents who wanted a real alternative for their children — and then kept using it themselves.

No chat, no messages, no friend requests. Nobody can contact you or your child through this app.
No social feed, no follows, no comments, no user-generated content of any kind.
No bad language anywhere. Every bot line, lesson and video script is written and reviewed by hand.
No ads, no pop-ups, no “unlock this for $2.99”, no loot boxes, no upsell screens.
No account and no sign-up. Nothing to remember, nothing to leak.
Offline by default, so there is no browser to wander out of and nowhere else to go.
Several profiles on one tablet — each with their own rating, games and trophies.
A kid lock keeps a young player inside the app until a grown-up unlocks it.
Read the privacy promise ›
One price, no meter running

Free to download. $19.99 unlocks everything, forever.

Most chess apps rent you their features by the month. NIA CHESS is the other kind: try it free for as long as you like, then pay once and own the whole thing — every bot, every puzzle, every lesson, for every profile on the tablet.

Start here

Free download

$0no trial clock, no ads

A real app, not a countdown. Keep it free for as long as you like.

Coach Ada
Coach Ada 100% freeEvery one of her features — live coaching, full game review, hints — with no limit and no coaching tier.
  • Coach Ada explains every move, live and after the game
  • The first lessons and the beginner bots
  • A daily puzzle and a daily game
  • Works fully offline, from the first minute
  • The full bot ladder, the legends and the cups
  • All 620,000+ puzzles and 100+ interactive lessons
Get it on Google Play Download on the App Store
Pay once · in the app Unlock everything

Everything, forever

$19.99one payment, in the app · no subscription

One in-app purchase turns the free app into the whole academy — and it stays unlocked for every profile on the device.

  • All 19 bots, including the three legends, and the full ladder
  • All 620,000+ puzzles, Puzzle Rush and your personal mistake set
  • All 100+ interactive lessons and 5,000+ opening studies
  • Four tournament cups, the endgame trainer, 525,000+ master games
  • Every profile on the tablet, and every future content update
subscriptionadsconsumablessecond paymentaccount
Download free, unlock inside ›

Bought once through Google Play or the App Store; restores on a new tablet.

$19.99

Once. Not per month.

A single payment that costs about what one month of a typical chess membership does — and then it is yours. No renewal, no price rise, no “your plan has expired”.

1 → ∞

One payment, every profile.

Brothers, sisters, parents, grandparents — every profile on the tablet gets the full app. No family plan, no per-seat pricing, no sharing a login.

0

Nothing else to buy, ever.

No hints to top up, no coins, no boosters, no “premium” bots. Future lessons, videos and puzzles arrive in updates and are included in the $19.99.

How we're different

NIA CHESS next to the big three.

We like all three of these — Lichess especially, and we build on it. But they are all online services, and that is the one thing we set out not to be.

  Chess.com ChessKid Lichess
Works in airplane mode Everything, always Needs a connectionNeeds a connectionNeeds a connection
Content stored on the device Engine, puzzles, lessons, master games, studies Streamed from the serverStreamed from the serverStreamed from the server
Price Free to download · $19.99 unlocks everything, once Free tier plus monthly or yearly membershipFree tier plus monthly or yearly membershipFree — donation funded, open source
Account or sign-up None required RequiredRequiredRequired for most features
Chat with other people None at all, by design YesModerated, child-safeYes
Social feed, profiles, follows None YesLimited, moderatedYes
Ads Never On the free tierNoneNone
Coach who explains each move in words Built in, live and after the game Game Review, on paid plansYes, at a child's levelEngine analysis, no spoken coach
Multiple profiles on one tablet Included Separate accountsSeparate accountsSeparate accounts
Designed for All ages — absolute beginner to 1900+ All ages, online-firstChildrenAll ages, online-first

Comparison compiled from publicly available information in September 2026 and describes each product's standard offering. Features, tiers and pricing change often — please check each site for the current details. Chess.com, ChessKid and Lichess are trademarks of their respective owners and are not affiliated with NIA CHESS. Lichess is free and open source, and NIA CHESS uses its public API for optional online play.

Questions

Frequently asked.

Does it really work with no internet at all?
Yes. Put the tablet in airplane mode and every part of NIA CHESS still works: the engine, Coach Ada, all 620,000+ puzzles, the 100+ interactive lessons, the 525,000+ master games and the 5,000+ opening studies are stored on the device when you install it. The single exception is playing live games on Lichess, which obviously needs a connection — and that feature is entirely optional.
What do I actually get for free?
The free download is a real app, not a countdown: you get Coach Ada, the first lessons, the beginner bots, a daily puzzle and a daily game, for as long as you like — no trial that expires and no ads. One payment of $19.99 then unlocks everything else permanently: all 19 bots, all 620,000+ puzzles, all 100+ interactive lessons, tournaments, endgames, the 525,000-game master database and the 5,000+ opening studies. No subscription, no second payment, no consumables, and future content updates are included.
Why one payment instead of a subscription?
Because a chess trainer for a family should be bought like a chess set, not rented like a streaming service. Everything in the app runs on your tablet, so there is no server bill for us to pass on to you every month. $19.99 is roughly one month of a typical chess membership, and it covers every profile on the device for good.
Is this only for children?
No. It was built for a chess family, and the adults in that family use it every day. The bot ladder runs from 250 to 1900 Elo, with the legends up to 2200, the puzzle set goes from mate-in-one to genuinely hard endgames, and there are over 5,000 opening studies. An absolute beginner starts at the first lesson; a club player heads straight for The Maestro, the Tower Cup and the endgame trainer.
How good is Coach Ada, really?
Her judgement comes from a full-strength engine running on the device, so the evaluations are the real thing. What she adds on top is the explanation: she works out in plain language what a move defends, attacks, develops or hangs, grades it on the same nine-point scale strong players use, and tells you what was better and why. She is a chess coach, not a general chatbot — she talks about the position in front of you, and she does it without a connection or a subscription.
Is there any chat, messaging or social media?
None. There is no chat, no messaging, no comments, no friend requests, no profiles to browse and no feed. Nobody can contact a player through NIA CHESS. Even in optional Lichess games your opponent is shown only as a rating and a country flag — no username, no way to talk. The bots "chat", but every line is written by hand by us, and it can be switched off in Settings.
What data do you collect?
None. There is no account, no sign-up and no analytics. Games, ratings and trophies are saved on the device and nowhere else. If you choose to connect Lichess, that sign-in is between you and Lichess. See the privacy page for the full detail.
Can several people share one tablet?
Yes. Create a profile for each player and each one gets their own rating, game history, puzzle progress, streaks and trophy cabinet. Switching profiles takes two taps, and a kid lock keeps a young player inside the app until a grown-up unlocks it. The $19.99 unlock covers all of them.
What do I need to run it?
Android 9 or newer — it is tested on inexpensive Amazon Fire tablets, which is deliberate — or iOS 15 or newer. The install is about 160 MB. It runs happily on a phone, but a tablet is much nicer for the board.
When can I get it?
NIA CHESS is finishing its last round of testing on real tablets with real families. Leave your email on the download page and we will write to you on the day it goes live — one email for launch, one for the first big update, and nothing else.

Something we did not answer? Write to hello@niachess.com.

Coming soon · Android & iOS

Bring a chess coach home. Leave the internet behind.

Free to download. $19.99 unlocks everything, once. Leave your email and we will tell you the day it goes live.

Get it on Google Play Download on the App Store
Get the launch email ›