MonsterHand — poker tracker, equity calculator & GTO solver for Windows

The calculators

Five tools, in order of depth.

Start with raw equity. End with a solver. The right column is not a feature list it's how the app behaves the moment you sit at a real table.

Tool What it does During live play

Hand vs Random Your exact hand against a random holding, 2–9 players. Win/tie/loss, outs, and what both sides can still make. available

Hand vs Range Your hand against a weighted range on any board you set. locks

Range vs Range Two full ranges on the 13×13 grid — equity, made hands, draws, and a sweep of every flop, turn, or river. locks

Multiway Range vs range with up to 9 players in the pot. locks

GTO Solver Postflop heads-up solver. Set pot, stacks, rake, bet and raise sizes, donk leads, and an all-in threshold — then walk the solved tree hand by hand. locks

Locked tools grey out automatically when a real-money table opens, and come back when your session ends. Why it works this way ↓

Hand vs Random calculator showing outs and potential hands — Hand vs Random — K♠J♦ on 7♠A♠Q♠: 17 outs, every potential hand quantified.

GTO solver output — solved strategy grid with action frequencies and EVs — GTO Solver — solved to 0.145% pot exploitability in 500 iterations. Click any hand for its mix.

The HUD

39 stats on every opponent, built hand by hand.

After each hand completes, MonsterHand reads the history file and updates the overlay. No live card data, no advice — just who your opponents are, in numbers, on up to 4 tables at once.

MonsterHand HUD overlaid on a live PokerStars table — The HUD attached to a PokerStars table. Each stat line is an opponent profile — click + for the full popup.

One HUD, four ways to read it

01Overall

The classic view. Lifetime stats per opponent, across every hand you've logged against them.

02By position

Filter any player's stats to the seat they're sitting in right now. A button that opens 40% overall might open 70% on it.

03Versus Hero reverse HUD

A reverse HUD that shows the stats each opponent has built on you, exactly as they've seen you at the tables — computed only from hands where you were both dealt in.

They see you: VPIP 32 PFR 26 AF 1.7 3B 9 F3B 43 CB 25

04By street

Cut the postflop section down to flop, turn, or river — and tick per-street values to recalculate the stats for that street alone. Try it on the right.

HUD stats popup — live demo

Per-street values

PREFLOP

POSTFLOP

GENERAL

Site rules

Play by the rules.

MonsterHand was submitted to PokerStars and reviewed against their third-party tools policy. Two design decisions make that possible:

Completed hands only

The HUD is built from hand history files written after each hand ends. It never reads live card data and never suggests an action. It's a tracker, in the same category the sites already permit.

Study tools will not open during live play

The moment a table opens, Hand vs Range, Range vs Range, Multiway, are locked out and stay locked until you close the poker client window. The only calculator available at the table is Hand vs Random.

Platforms