Know the right preflop play before you sit down.
1,350+ preflop charts for every position and stack depth, a training mode that scores your decisions against GTO frequencies, an EV calculator and a tournament timer — in one app that works offline.
What's inside
Chart library
1,350+ preflop charts: all positions, RFI, defense, 4-bet, squeeze, vs limpers and blind vs blind, from 10 to 200+ big blinds. Tap any hand to see exact action frequencies.
Training mode
15-question sessions with instant feedback. Scoring credits every GTO-approved action, not a single "right" answer, and tracks your progress over time.
EV calculator
Hand vs hand or hero vs range equity with Monte Carlo simulation.
Tournament timer
Blind structures with auto-advance, three layouts, player tracking and bubble detection for home games.
Pricing
The app is free to download. GTO Shark Premium unlocks every feature and is sold as an in-app subscription through the App Store.
Prices are in US dollars for the US App Store; the app shows your local price before you confirm. Payment is charged to your Apple ID. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in Settings → your name → Subscriptions. See Terms of Use.