Rocket is one of three mobile financial services that dominate Bangladeshi digital payments, alongside bKash and Nagad — and for betting specifically, the practical differences between the three come down to which operators actually support each one, not which service is technically "better."
Rocket is run by Dutch-Bangla Bank and was one of the earliest mobile financial services in Bangladesh, with a large agent network for cash-in and cash-out. bKash, backed by BRAC Bank, has the largest overall user base in the country and is the service most Bangladeshi mobile-wallet users already have installed. Nagad, operated in partnership with Bangladesh Post Office, has grown quickly on the strength of lower fees on several transaction types.
For a betting site specifically, none of that history matters as much as one simple question: does the operator you actually want to use support the wallet you already have an account with? A sportsbook can support all three, one, or none — and support for one doesn't imply support for the others, even though they serve the same basic function. That's why this page tracks Rocket on its own rather than lumping it in with a generic "Bangladeshi mobile wallet" category.