GTO poker trainer · cash games

The GTO poker trainer that shows you what your mistake cost.

Play real solver-solved spots. Pick your action. See the best move, your equity, the hands you beat, and the exact price of the alternative. Then drill the leak until it stays fixed. Ten minutes a day, free to start.

Live on Google Play · iPhone next · Educational, no real-money play · 18+

Real spotsevery hand comes from a solved situation
Priced mistakessee what each alternative costs, in big blinds
Your leaksdrills built from the spots you get wrong
Inside the app

Five screens, one loop: decide, see the answer, fix the leak.

Zayrion poker trainer screenshot: Play a real spot. Button with A♣A♥ on K♠Q♥5♥, big blind checks to you. Make the decision, then see the solver’s.
Play a real spotButton with A♣A♥ on K♠Q♥5♥, big blind checks to you. Make the decision, then see the solver’s.
Zayrion poker trainer screenshot: Preflop decisions. Six-handed cash, $5/$10, 100 big blinds deep. Fold or raise with 3♦3♣ from late position?
Preflop decisionsSix-handed cash, $5/$10, 100 big blinds deep. Fold or raise with 3♦3♣ from late position?
Zayrion poker trainer screenshot: Estimate your equity. K♥9♦ on the river. How often is your hand good? Lock in a number and see the truth.
Estimate your equityK♥9♦ on the river. How often is your hand good? Lock in a number and see the truth.
Zayrion poker trainer screenshot: Lessons that stick. Quick checks after every lesson, like “more hands or fewer when the rake is high?”
Lessons that stickQuick checks after every lesson, like “more hands or fewer when the rake is high?”
Zayrion poker trainer screenshot: Range checks. Button against UTG: out of everything you can arrive here with, how often should you check-raise?
Range checksButton against UTG: out of everything you can arrive here with, how often should you check-raise?
Where to get it

Live on Android. iPhone is next.

Android, out now

The full trainer, live on Google Play today. Free tier, no card needed.

Get it on Google Play

iPhone, coming soon

The App Store release is in review. Leave your email and you will know the moment it is live.

One email when the iPhone app launches. No spam, ever.

How it works

Three steps, every hand.

1

Play a real spot

Real situations with position, stacks and action. You make the call, preflop or on any street.

2

See the solver’s answer

The best move, how often to make it, your equity, the hands you beat, and what your choice cost in big blinds.

3

Drill the leak

Spots you miss come back as drills until they are fixed. Progress is tracked by concept, not just by score.

Where does it hurt?

Start from your problem, not our feature list.

Stop bleeding in cash games

Drill the exact spots where money leaks: c-bets, check-raises, river bluffs. See the cost of every mistake.

Find your leaks →

Learn GTO from zero

A structured path from “what is GTO” to solver-grade thinking, with every term explained the first time it appears.

Read the 30-day plan →

Practise without losing money

Hand of the Day, adaptive drills and spaced review. Ten minutes a day, no bankroll at risk.

How to practise poker →
Free tools

Use these without the app.

Built on public poker maths, free forever, no sign-up. They show you the numbers. The trainer shows you what to do with them.

Preflop charts

Opening, 3-bet and defending ranges for every position, as 13×13 grids you can read on a phone.

Open the charts →

Equity calculator

Hand vs hand and hand vs range odds on any board, with a matchup chart and the outs table.

Calculate equity →

Variance and bankroll

How big your downswings can be at your win rate, your risk of ruin, and how many buy-ins you need.

Run the numbers →
What’s inside

Built like a coach, not a quiz app.

Hand of the Day

One serious hand, every day. Streaks keep you honest.

Drills

Adaptive training on the spots you actually get wrong.

Lessons from zero

A beginner-to-solver path in plain English.

Progress

Leagues, ratings, and concept-level tracking.

Preflop charts

Position-by-position ranges, always in your pocket.

Review your misses

Every mistake saved, explained, and re-drilled.

Equity on every spot

Your equity and the hands you beat, on the screen where you decide.

Explanations that teach

Why the move wins and what the alternatives cost, in plain words.

Guides

Learn the game, then drill it.

What is GTO poker?

Game theory optimal, explained without the maths degree.

Read →

How to learn GTO poker

A 30-day plan for cash games, week by week.

Read →

Pot odds and equity

The two numbers behind every call, with worked examples.

Read →

Bankroll management

How many buy-ins you need, by format and by risk.

Read →

When to 3-bet

Value and bluff 3-bets by position, with sizing.

Read →

Best poker training software

An honest comparison of the trainers, sites and solvers, ours included.

Read →
Pricing

Free to start. Serious when you are.

Free tier to build the habit · Pro $12.49/mo in founding beta (normally $24.99) · Elite $17.49/mo (normally $34.99). Less than an hour with a coach costs, every month.

Community

Don’t study alone.

The Zayrion Discord is where players share hands, argue lines, and get answers from the people building the app. Beta feedback lands there first, and so do the new features.

Join the Discord →

Your next session can be better than your last.

iPhone: coming soon

Questions

The questions everyone asks.

What is a GTO poker trainer?

An app that deals you a real poker spot, lets you choose an action, then shows the game-theory-optimal answer from a solver and what your choice cost. You practise decisions instead of reading about them. Learn more: what is GTO poker?

Is this gambling?

No. Zayrion is an educational training app. There is no real-money play, no deposits, and no way to wager anything. It teaches the game, it doesn’t host it. 18+. Learn more: about Zayrion

Do I need to own a solver?

No. The solving is already done. You get the answer and the reasoning on every spot without the software, the hardware, or the learning curve. Learn more: solvers vs trainers

Does it cover tournaments?

Not yet. Zayrion trains cash games, where the fundamentals pay off fastest. Tournament training is on the roadmap. Learn more: bankroll by format

Is there a free tier?

Yes. Hand of the Day, lessons from zero, streaks, leagues and a rating are free. Pro and Elite add deeper drills, full explanations and progress tools. Learn more: what is free

Is GTO worth learning at low stakes?

Yes, as a baseline. Knowing the solver’s answer tells you which habits are leaks and which are fine, so you exploit weaker players from a position of knowing what is correct. Learn more: how to learn GTO poker

How is this different from poker coaching?

A coach answers your questions and watches you play, at $50 to $300 an hour. Zayrion finds leaks from your own decisions and drills them every day for the price of a coffee. Many players use both. Learn more: coaching vs a trainer

How do I practise poker without losing money?

Practise decisions, not hands played. Ten minutes of solved spots a day beats an hour of play-money poker. Learn more: how to practise poker

How many buy-ins do I need?

For online six-handed cash, 30 to 50 buy-ins is the standard answer. Full ring is cheaper and live can run thinner. The exact number depends on your win rate and how much risk you accept. Learn more: bankroll calculator

Can I cancel anytime?

Yes. Subscriptions run through Google Play, and the App Store once we launch there. Cancel in two taps from your store account and keep access to the end of the period you paid for. Learn more: pricing and billing