The most affordable credible route into local GTO solving — if heads-up postflop Hold’em on Windows is your job.
Review summary
GTO+ is a specialised software tool for advanced game theory analysis of Hold’em poker. It focuses specifically on postflop heads-up scenarios, letting you compute Nash equilibrium strategies on your own computer. It is the budget entry point into real local solving — $75 once, updates for life — for players who want to build their own study trees rather than pay monthly for a cloud service. Its limitations are equally clear: no preflop solving, no multiway pots, no Omaha, no trainer, and Windows only.
This review is based on official product information and published third-party sources, verified as of 9 November 2026. No hands-on testing was performed.
Verdict: the most affordable credible route into local GTO solving — if heads-up postflop study on Windows is actually your job.
Quick facts
| Feature | Details |
|---|---|
| Software name | GTO+ |
| Developer | Eighty 3 |
| Product category | Poker Solver |
| Official website | gtoplus.com |
| Windows compatibility | Yes |
| macOS compatibility | No |
| Linux compatibility | No |
| Mobile support | No |
| Supported poker variants | Hold’em (heads-up, postflop) |
| Main functions | Nash equilibrium computation, tree building, analysis and graphing |
| Free version or trial | No |
| Pricing model | One-time purchase |
| Current price (verified 9 Nov 2026) | $75 main licence (2nd computer $40; CREV upgrade $50) |
| Latest version | v193 (22 September 2026) |
| Last verified date | 9 November 2026 |
What is GTO+?
GTO+ is advanced game theory analysis software for Hold’em, in the words of its official description. It is a ‘solver’: a program that uses mathematical algorithms to find GTO (Game Theory Optimal) strategies — strategies that an opponent cannot exploit, even knowing them perfectly.
It works by computing the Nash equilibrium of specific poker situations. A Nash equilibrium is a state where no player can improve their outcome by unilaterally changing strategy. In heads-up play (two players), GTO+ calculates how each side should bet, check or fold, given their ranges and the board.
Because it is a local solver, the heavy computation happens on your machine, and you are responsible for ‘building the tree’ — the map of every possible action through the hand, from the flop to the river, including bet sizes. Once the tree is built, the software computes the balanced strategy for each branch. The official page describes it as having ‘one of the fastest and accurate GTO solving algorithms available today’, with ‘advanced tree building options (multiple bet sizes included)’ and a visual interface for navigating and editing solutions.
One useful fact: GTO+ is made by Eighty 3, the same team behind Flopzilla, and a purchase includes a licence for CREV, its previous version.
Who should use it?
Intermediate players get the most from it: they understand the mechanics, want to move beyond feel-based play, and can now check — properly — how balanced a spot really is. GTO+ is the cheapest door into that world.
Advanced players often keep it as a secondary tool: fast, affordable, and well suited to verifying specific postflop heads-up spots without the overhead of a larger solver project.
Coaches can use its graphing and visual solution navigation to show students how frequencies shift across a range.
The scope limits matter: it is heads-up only (no multiway pots), Hold’em only (no Omaha), and postflop only (you supply the ranges arriving at the flop). Players whose study needs fall outside that box should look elsewhere — the comparison section below points to where.
Main features
Fast solving. The official claim is that it is among the fastest and most accurate GTO solving algorithms available. Speed matters in practice: you build several trees to compare options, and slow solving makes that loop painful.
Advanced tree building with multiple bet sizes. You define the board, stacks, ranges and the betting sequences — including multiple bet sizes on a street — which is essential for studying modern poker rather than simple all-in-or-one-bet spots.
Analysis and graphing tools. Solutions are not just numbers: internal tools let you graph frequencies and see how play shifts across ranges and boards.
Visual solution navigation. You can navigate and edit solutions in an easy-to-use visual interface (official description), which is the friendliest part of local solving.
Limitations, plainly stated. No preflop solving (ranges at the flop are your inputs), no multiway support, no Omaha, no trainer or practice mode, no pre-solved library, and no macOS/Linux/mobile versions. It answers one question — how should this heads-up postflop spot be played — and it answers it well.
Ease of use
GTO+ comes from Eighty 3, the team behind Flopzilla, and that heritage shows: the interface is visual and logical rather than cryptic.
The learning curve is in the solver craft itself, not the buttons: defining sensible ranges, choosing bet sizes, and building a tree that matches the real spot. Beginners to solving will need the documentation and the community around GTO study regardless of which program they pick. Once the tree is built, clicking through streets and editing the solution is the easy part.
Practical examples
Scenario A: A coordinated flop. You are out of position on an 8h-7h-6s board and want to know how often you should check-raise a bet with your range versus just calling. Build the tree with the board, the stacks, your range and the opponent’s, add the bet sizes you face, and GTO+ returns the balanced frequencies — including the check-raise share — for every card in your range.
Scenario B: A scare card on the turn. You held a range advantage on the flop, and the turn brings an Ace. Build a two-street tree (flop action, then the turn) and compare how your betting and bluffing frequencies should adjust once the turn card is in. That comparison — with and without the Ace — is exactly the kind of question the tool was built for.
Performance and system requirements
GTO+ is a Windows desktop application; the official site lists no macOS, Linux or mobile support, so Mac users need Bootcamp or a virtual machine. The site does not publish a formal hardware specification. Because it is a local solver, performance is tied to your CPU: a faster processor and sufficient RAM cut solve times, especially on trees with multiple streets and several bet sizes.
Pricing and value
The model is simple and, for solvers, unusually kind:
- Main licence: $75, one-time. The registration fee is one-time and all future updates are included (official).
- Second computer: $40 — you must own both computers.
- Upgrade from CREV: $50.
- The purchase includes a CREV licence (the previous version).
Purchase is by transfer of funds; a registration key is then emailed and entered via the register menu. At $75 for lifetime updates, it is the cheapest way to own a serious local GTO solver — cheaper than a single year of every subscription platform in our reviews.
Advantages and disadvantages
Advantages
- $75 one-time with all future updates included — the best value in local solving.
- Fast, accurate heads-up postflop solving (official claim).
- Multiple bet sizes and full tree control.
- Visual, navigable solution interface.
- CREV licence included; second computer available at $40.
Disadvantages
- Heads-up Hold’em only — no multiway, no Omaha.
- No preflop solving; ranges are your inputs.
- No trainer, no pre-solved library, no hand-history analysis.
- Windows only.
- No free version or trial.
Comparison with alternatives
- GTO Wizard is the subscription alternative: cloud-based (any OS), a large pre-solved library, a trainer and hand-history analysis, from $39/month (annual billing). You rent convenience; with GTO+ you own the tool.
- PioSolver is the deeper local specialist: €450 Pro / €800 Edge, up to 16/64 cores, scripting, and Edge adds heads-up preflop solving. More machine, more cost — GTO+ is the value play in the same category.
- MonkerSolver is the one to choose if you need multiway pots or Omaha (€499 full; free turn/river edition).
- Simple Postflop ($299 one-time) overlaps heavily — also heads-up, also local — with its 1,755-flop reduction and free turn/river tier.
- PokerSnowie is a different animal: an AI coach that trains you, rather than a solver that answers trees.
See our Best Poker Solvers guide for the full field.
Poker room rules and restrictions
GTO+ is an off-table study tool. Using any solver — including GTO+ — to inform decisions while a hand is in progress is Real-Time Assistance (RTA), prohibited at essentially every major room, with bans and fund forfeiture as the standard outcome.
Study away from the table, and check each room’s software policy for its exact position.
Final verdict
Choose GTO+ if: you play heads-up postflop Hold’em, you have Windows, you want to own your solver outright for $75, and you are ready to learn tree building.
Avoid GTO+ if: you need multiway or Omaha (MonkerSolver), preflop solving (PioSolver Edge), a training ecosystem rather than raw trees (GTO Wizard or PokerSnowie), or you work exclusively on a Mac without virtualisation.
FAQs
Is GTO+ free? No — it is a $75 one-time purchase with all future updates included. There is no free version or trial on the official site.
Can I use it on a Mac? Not natively. It is a Windows application; Mac users need Bootcamp or a virtual machine.
Does it solve preflop? No. GTO+ is a postflop solver; you supply the ranges arriving at the flop.
Are updates included? Yes — the one-time registration fee includes all future updates (official).
Does it support Omaha or multiway pots? No. It is heads-up Hold’em only. For multiway and Omaha, see MonkerSolver.
Is it RTA / cheating? It is a study tool. Used during live play it would be RTA and is banned; used off-table it is standard, legitimate study.
