This guide is based on official product information and verified third-party sources as of 18 October 2026. We have not performed any hands-on testing of these products.
What GTO training actually is
If you want to improve at modern poker, you will soon encounter the term GTO. This stands for Game Theory Optimal. A GTO strategy is a mathematical approach that makes you impossible to exploit: if you play it perfectly, an opponent cannot win money from you in the long run, even knowing exactly what you are doing.
To find these strategies, players use a solver — a program that calculates the mathematically balanced way to play a situation. But knowing the solution is different from being able to play it. That is what a trainer is for: it deals you the hand, you make the decision, and the software scores you against the correct strategy.
Two concepts do most of the work in a training session. Your range is the set of hands you are expected to hold in a situation. Your frequency is how often you take a particular action (bet, check, raise) with that range. Good training is high-repetition drilling of specific spots, which turns the mathematics into speed and instinct.
The short answer
- All-in-one (solver + trainer + analysis): GTO Wizard — web-based, any operating system.
- AI-driven coaching with instant feedback: PokerSnowie — Windows, plus an iPhone preflop tool.
- Drilling solutions from your own solver: Simple GTO Trainer — Windows, imports external solution files.
The tools
GTO Wizard
A web-based platform, so it runs on any operating system through a browser. It combines three things in one subscription: the ‘GTO Wizard AI’ solver, a pre-solved library (the company says it spans millions of spots across formats and stack depths), and a trainer where you play against the AI and get reports marking moves as correct, wrong or blunders. The 31 March 2026 update merged the Cash and Tournament formats into single subscriptions.
Pricing: $49 / $99 / $169 / $279 per month on monthly billing, or $39 / $79 / $139 / $229 per month on annual billing. The Starter tier includes weekly coaching sessions and 200+ hours of recorded coaching content (part of the 2026 update). A free tier offers a small daily hand allowance (reported as around 10 hands per day), and a free iPhone app (PokerArena) exists for lighter mobile study.
PokerSnowie
An AI coach rather than a tree-building solver. The company says its AI learned No-Limit Hold’em by playing billions of hands against itself. In practice that means: play challenge hands and get instant feedback (Live Advice), import your real hand histories for analysis, and track your error rates and game balance over time.
A single unlimited subscription: $29.90 per month, or $199.90 per year (the annual rate is advertised as a 44% saving on first purchase; prices exclude VAT). A short free trial is offered (reported as 10 days). Windows desktop, plus a separate ‘Preflop Advisor PRO’ app for iPhone.
Simple GTO Trainer
A dedicated drill program: pre-built GTO training scenarios, or your own customised drills, with instant feedback on each decision. Its defining feature is that you can import solution files from other solvers — your PioSolver, GTO+ or Simple Postflop work becomes a practice session. Windows only; a free trial is available. The licence is period-based (a 2026 third-party listing shows $199 for twelve months — confirm on the official site).
One clarification for searchers: this is not the former ‘GTO Trainer’ brand at gto-trainer.com, which no longer appears operational.
Comparison table
| Tool | Training type | Platform | Price (18 Oct 2026) | Free option | What else it does |
|---|---|---|---|---|---|
| GTO Wizard | All-in-one | Browser (any OS) | $49–$279/mo ($39–$229 annual) | Yes — daily hand allowance (reported ~10/day) | AI solver, pre-solved library, hand-history analysis |
| PokerSnowie | AI coach | Windows + iPhone preflop app | $29.90/mo or $199.90/yr | Short trial (reported 10 days) | Hand import, error-rate stats, strategy advisor |
| Simple GTO Trainer | Pure trainer | Windows | ~$199/12 months (third-party; confirm) | Free trial | Imports external solution files |
Solvers that feed trainers
The strongest study loop is solve-then-drill: compute the correct strategy in a solver, then drill it until it is automatic. The reviewed solvers that produce those solutions:
- GTO+ — $75 one-time, Windows, postflop heads-up. The cheap entry into real solving.
- Simple Postflop — $299 one-time, Windows (free turn/river), heads-up postflop and preflop.
- MonkerSolver — €499 full (free turn/river version), Windows/macOS, the multiway and Omaha option.
- PioSolver — €450 (Pro) / €800 (Edge) one-time, Windows, the specialist depth tool.
Of the trainers here, Simple GTO Trainer is the one that explicitly supports importing your own solution files; GTO Wizard and PokerSnowie train against their own built-in strategy sources.
How to train effectively
Running the software is not the training; the structure around it is.
Choose your spots deliberately. Drill the situations that actually occur in your games — a common starting point is defending the big blind against a button open. You cannot learn everything at once.
Volume matters. Repetition is the mechanism: the same spot, many times, until the balanced frequencies feel natural rather than calculated.
Stop at the errors. When the trainer flags a mistake, do not move on until you understand it — look at what the correct frequency was and why. A correction you do not understand is a mistake waiting to happen.
Pair it with review. Tools like GTO Wizard and PokerSnowie also analyse your real hand histories, which is where you find the spots worth drilling in the first place.
FAQs
What is the difference between a solver and a trainer? The solver calculates the balanced strategy for a spot; the trainer makes you play it repeatedly and scores you. One produces knowledge, the other produces speed.
Can I use GTO training for tournaments? Partly. GTO Wizard’s merged formats include tournament study (its scope covers ICM final-table spots as well as cash games), but the specific tournament endgame mathematics — ICM and push/fold — belongs to ICM tools. Our tournament software guide covers that side.
Do I need to be advanced before GTO training helps? You need the fundamentals (ranges, pot odds, board texture) or the feedback will be meaningless — but you do not need to be a professional. Trainers are widely used from intermediate level up.
Do I need a powerful computer? Not for the trainers themselves: GTO Wizard is browser-based, PokerSnowie runs on ordinary hardware, and Simple GTO Trainer scores against pre-computed solutions. You only need serious hardware if you run a heavy local solver.
Is there a free route in? Yes: GTO Wizard’s free daily allowance, PokerSnowie’s trial, Simple GTO Trainer’s trial, and the free solver tiers (MonkerSolver turn/river, Simple Postflop turn/river) all cost nothing to start with. See our free poker software guide.
What counts as a ‘blunder’ in a trainer’s report? A decision far outside the balanced range of actions — the kind of move that leaves significant value on the table. It is the most valuable line in any report.