PS3838 is a Pinnacle Whitelabel. As a Pinnacle white label, it supports the same sports and markets and offers, but with a different design layout.
For each sport, there is a subsection for the leagues and tournaments offered, covering almost every available major sporting event in the world.
As for the available markets, those are rather standard: 1X2, Over/Under, Handicap, First Half / Final results, and team totals.
Long-term bets on tournaments/ contests and parlay/multiple bets are also available.