Guide
Calculator, trainer or solver?
Three kinds of poker software answer three different questions. A calculator tells you how likely something is. A trainer tells you whether your decision was right. A solver tells you what balanced play looks like. They are not rivals, and the order you use them in decides whether any of them is worth the money.
Three questions, three tools
| Calculator | Trainer | Solver | |
|---|---|---|---|
| Question it answers | How likely is this? What is this call worth? | Was my decision right, and why? | What is the unexploitable strategy for this exact spot? |
| Nature of the answer | A fact. Exact, provable, never changes. | A grade against a curriculum or a solve. | An equilibrium. Correct only for the inputs you gave it. |
| What you need first | Nothing. | The facts the trainer grades you on. | Range fluency, the thresholds, and hours to read output. |
| Skill it builds | Seeing the odds. | Making the right move fast. | Understanding balance. |
| Where it stops | It does not tell you what to do. | It teaches its curriculum, not your custom spot. | It does not explain itself, and it never suggests an exploit. |
| Typical cost | Free. | Free to about $25 a month. | Free open-source builds to several hundred for a desktop licence. |
One hand, three tools
You hold A♥ K♥ on Q♥ 7♥ 2♣. An opponent bets $75 into a $100 pot. Suppose, for the sake of the arithmetic, that they hold 7♣ 7♦. Here is what each tool contributes.
Calculator
- Equity: 25.6%, from every turn and river.
- Outs: 8 clean of 45 unseen cards.
- Pot odds 2.3 : 1: the call needs 30.0%.
- Verdict: the call loses by 4.4%.
Trainer
- Deals you this shape without the answer.
- You estimate the equity in ten seconds.
- Grades the estimate, shows the exact figure and the math.
- Repeats until the estimate arrives on its own at the table.
Solver
- Needs the opponent's whole range, not one hand.
- Needs the bet sizes allowed on every street.
- Returns a mix: raise some, call some, using thresholds like α = 42.9% for the bettor.
- Tells you the frequencies. Not why.
Notice what the calculator settles on its own: whether the call is worth making against this hand. The trainer makes that judgement fast. The solver adds something only when the question becomes strategy against a range of hands, and it assumes you can already do the first two.
Start with the calculator if any of these is a no
- Can you estimate your equity within five points in ten seconds, on the flop, without a chart?
- Do you know why a call against a pot-size bet breaks even at a third, and against half pot at a quarter?
- Can you count outs, including the dirty ones, without listing the deck?
A no means a trainer will grade you on facts you do not yet have, and a solver will show you frequencies you cannot explain. The calculators here are free and unlimited, and every one shows its working. Start with the odds calculator, the pot odds calculator and the academy.
When a trainer is the right next step
When you know the facts and keep not using them. You know a flush draw is about 35% by the river and you still fold it to a small bet, because the decision arrived faster than the thought. That is an execution gap, and repetition with immediate correction is the only thing that closes it. Our trainer drills the estimation itself, in seconds, with the exact answer and the math after every question; a decision trainer drills the move that follows.
When a solver is the right next step
When opponents stop making obvious mistakes, when you already think in ranges, and when you have a specific question: how does this spot change at sixty big blinds, which hands does equilibrium bluff here, is my three-bet range built sanely. Those are research questions and a solver is a research instrument. If you cannot name the question, you are not ready to pay for the answer. The From odds to solver module explains what the output means in terms of the math on this site, so that when you do open one, the grid reads as reasoning rather than colour.
The order that works
- Calculator and lessons: learn what the numbers are and why. Weeks, free.
- Trainer: make the estimates automatic. Minutes a day, ongoing.
- Solver or solver-based trainer: study balance and specific spots, once the first two are second nature.
MyPokerOdds is the first two steps and the bridge to the third. We compute the facts, explain them, and drill them; we do not solve custom spots, and we say so. If you are past step two, a solver is the right purchase and we will not pretend otherwise.
Questions
- Do I need a solver to beat low stakes?
- No. At low stakes the money comes from opponents' recurring mistakes and your own, and both are fixed by knowing the odds and drilling them. A solver becomes worth its time when opponents stop making obvious errors and you already think in ranges.
- Is a poker odds calculator the same as a solver?
- No. A calculator computes a fact: given these cards, this is the probability. A solver computes a strategy: given these ranges and bet sizes, this is the equilibrium mix. The fact never changes; the strategy changes whenever its inputs do.
- What is a GTO trainer?
- A drill built on solver output. It deals you a solved spot, you act, and it scores you against the equilibrium strategy for that exact node. It assumes you can already read range grids and knows why the equilibrium acts as it does.
- In what order should I use them?
- Calculator to learn the facts, trainer to make them automatic, solver to study strategy once the facts are second nature. Skipping the first two is how most solver subscriptions go unread.